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1.
J Christ Nurs ; 41(3): 160-165, 2024.
Article in English | MEDLINE | ID: mdl-38853314

ABSTRACT

ABSTRACT: Faith community nurses (FCNs) are well positioned to serve individuals needing community-based healthcare within local healthcare systems, large church denominations, or through the support and resources of nonprofit faith community nursing organizations. This article briefly outlines development of the specialty of faith community nursing and proposes areas of research needed to grow the impact of this nursing specialty. Examples of FCNs working in and collaborating with healthcare systems, educational institutions, and congregations illustrate the value and diversity of FCN services for impacting community-based care. An exhaustive list of national, denominational, and regional organizations supporting FCN practice is included.


Subject(s)
Christianity , Parish Nursing , Humans , Parish Nursing/organization & administration , Community Health Nursing/organization & administration , Nurse's Role , United States , Female
2.
Hum Factors ; 65(3): 419-434, 2023 05.
Article in English | MEDLINE | ID: mdl-34148475

ABSTRACT

OBJECTIVE: This prospective study assessed the risk of developing rotator cuff syndrome (RCS) with separate or specific combinations of biomechanical exposures measures, controlling for individual confounders. BACKGROUND: Compared with other musculoskeletal disorders, rates of work-related shoulder musculoskeletal disorders have been declining more slowly. METHOD: We conducted up to 2 years of individual, annual assessments of covariates, exposures, and health outcomes for 393 U.S. manufacturing and healthcare workers without RCS at baseline. Task-level biomechanical exposures assessed exposure to forceful exertions (level, exertion rates, duty cycles), vibration, and upper arm postures (flexion, abduction). Hazard ratios (HRs) were calculated with Cox proportional hazard models. RESULTS: We observed 39 incident RCS cases in 694 person-years (incidence rate = 5.62 per 100 person-years). Adjusting for confounders, we found increased risk of incident RCS associated with forceful hand exertions per minute for three upper arm posture tertiles: flexion ≥45° (≥28.2% time, HR = 1.11, CI [1.01, 1.22]), abduction ≥30° (11.9-21.2%-time, HR = 1.18, CI [1.04, 1.34]), and abduction >60° (≥4.8% time, HR = 1.16, CI [1.04, 1.29]). We failed to observe statistically significant effects for other interactions or any separate measures of biomechanical exposure. CONCLUSION: This study highlights the importance of assessing combinations of exposure to forceful repetition and upper arm elevation when developing interventions for preventing RCS. APPLICATION: Based on these results, interventions that reduce exposure to forceful repetition (i.e., lower force levels and/or slower exertion rates) may reduce the risk of RCS, especially when upper arm elevation cannot be avoided.


Subject(s)
Musculoskeletal Diseases , Occupational Diseases , Humans , Rotator Cuff , Prospective Studies , Occupational Diseases/epidemiology , Occupational Diseases/etiology , Risk Factors , Health Personnel
3.
J Contin Educ Nurs ; 50(10): 455-462, 2019 Oct 01.
Article in English | MEDLINE | ID: mdl-31556961

ABSTRACT

Orienting new nursing staff is costly for health care organizations. Identifying preceptor characteristics and structuring preceptor education to support those characteristics may improve the orientation process and decrease orientation cost. A descriptive, observational study identified preferred characteristics of potential preceptors (N = 39) in a long-term care/subacute facility. Results showed that mean ranks of three items on the preceptor instrument were significant, thus providing insight regarding content and desired outcome of preceptor education. [J Contin Educ Nurs. 2019;50(10):455-462.].


Subject(s)
Long-Term Care/organization & administration , Long-Term Care/psychology , Mentors/education , Mentors/psychology , Preceptorship/organization & administration , School Admission Criteria , Students, Nursing/psychology , Adult , Attitude of Health Personnel , Female , Humans , Male , Middle Aged , Program Evaluation , Surveys and Questionnaires
4.
J Dr Nurs Pract ; 10(2): 144-148, 2017.
Article in English | MEDLINE | ID: mdl-32751031

ABSTRACT

Short-term medical teams (STMTs), serving for a week or two, often do not partner with the local health care system. As a result, nationals receive poor care coordination and duplication of medical services (Green, Green, Scandlyn, & Kestler, 2009). This article offers a care model and collaboration alternatives to support coordinated care. Experience: An STMT composed of 15 health care professionals provided care at a local camp in rural Guatemala. The pre-trip preparation included securing supplies and communicating with another STMT that visits the camp each year. Results: The Guatemala medical team treated 494 patients and dispensed 989 medications. Despite communication with a previous STMT, possible duplication of services occurred with an absence of medical follow-up. Analysis: Evaluation of the STMT's experience involved analyzing the number of people seen and medications dispensed, reflecting on conversations with local health care providers and patient. Discussion: The STMT's goal was to provide care to people living in poverty. Unfortunately, team members learned that their unfamiliarity with the local medical system resulted in duplication of services. If sustainable care is to occur, future teams should use a care model and collaborate with the local health care professionals.

5.
Occup Environ Med ; 73(11): 727-734, 2016 Nov.
Article in English | MEDLINE | ID: mdl-27466616

ABSTRACT

BACKGROUND: Between 2001 and 2010, six research groups conducted coordinated prospective studies of carpal tunnel syndrome (CTS) incidence among US workers from various industries to estimate exposure-response relationships. OBJECTIVE: This analysis examined the presence and magnitude of confounding between biomechanical and workplace psychosocial factors and incidence of dominant-hand CTS. METHODS: 1605 participants, without CTS at enrolment, were followed for up to 3.5 years (2471 person-years). Demographic information, medical history and workplace psychosocial stress measures were collected at baseline. Individual workplace biomechanical exposures were collected for each task and combined across the workweek using time-weighted averaging (TWA). CTS case criteria were based on symptoms and results of electrophysiological testing. HRs were estimated with Cox proportional hazard models. Confounding was assessed using causal diagrams and an empirical criterion of 10% or greater change in effect estimate magnitude. RESULTS: There were 109 incident CTS cases (IR=4.41/100 person-years; 6.7% cumulative incidence). The relationships between CTS and forceful repetition rate, % time forceful hand exertion and the Threshold Limit Value for Hand Activity Level (TLV-HAL) were slightly confounded by decision latitude with effect estimates being attenuated towards the null (10-14% change) after adjustment. The risk of CTS among participants reporting high job strain was attenuated towards the null by 14% after adjusting for the HAL Scale or the % time forceful hand exertions. CONCLUSIONS: Although attenuation of the relationships between CTS and some biomechanical and work psychosocial exposures was observed after adjusting for confounding, the magnitudes were small and confirmed biomechanical and work psychosocial exposures as independent risk factors for incident CTS.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Carpal Tunnel Syndrome/etiology , Occupational Diseases/epidemiology , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Adult , Biomechanical Phenomena , Carpal Tunnel Syndrome/psychology , Causality , Confounding Factors, Epidemiologic , Female , Humans , Male , Middle Aged , Occupational Diseases/psychology , Proportional Hazards Models , Prospective Studies , Risk Factors , Stress, Psychological/epidemiology , Stress, Psychological/etiology , Surveys and Questionnaires , United States , Workplace/psychology , Young Adult
6.
Home Healthc Now ; 33(7): 390-3, 2015.
Article in English | MEDLINE | ID: mdl-26121512

ABSTRACT

Home healthcare agencies are accountable for preventing rehospitalization, yet many struggle to make progress with this metric. The purpose of this article is to share how our organization turned to two frameworks, Transitions in Care and Relationship-Based Care, to prevent unnecessary rehospitalizations. Appreciative inquiry, motivational interviewing, and action plans are used by our Transitional Care Nurses to engage and motivate patients to manage chronic diseases and achieve desirable health outcomes. Implementation of a Transitional Care Program has led our organization to improve the health of our patients and to decrease rehospitalization rates.


Subject(s)
Home Care Services/organization & administration , Patient Readmission/statistics & numerical data , Transitional Care/organization & administration , Chronic Disease , Disease Management , Humans , Motivational Interviewing , New Jersey
7.
Am J Ind Med ; 58(5): 509-18, 2015 May.
Article in English | MEDLINE | ID: mdl-25778111

ABSTRACT

BACKGROUND: Few large epidemiologic studies have used rigorous case criteria, individual-level exposure measurements, and appropriate control for confounders to examine associations between workplace psychosocial and biomechanical factors and carpal tunnel syndrome (CTS). METHODS: Pooling data from five independent research studies, we assessed associations between prevalent CTS and personal, work psychosocial, and biomechanical factors while adjusting for confounders using multivariable logistic regression. RESULTS: Prevalent CTS was associated with personal factors of older age, obesity, female sex, medical conditions, previous distal upper extremity disorders, workplace measures of peak forceful hand activity, a composite measure of force and repetition (ACGIH Threshold Limit Value for Hand Activity Level), and hand vibration. CONCLUSIONS: In this cross-sectional analysis of production and service workers, CTS prevalence was associated with workplace and biomechanical factors. The findings were similar to those from a prospective analysis of the same cohort with differences that may be due to recall bias and other factors.


Subject(s)
Carpal Tunnel Syndrome/etiology , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Adult , Age Factors , Biomechanical Phenomena , Carpal Tunnel Syndrome/epidemiology , Cross-Sectional Studies , Female , Humans , Logistic Models , Male , Middle Aged , Multivariate Analysis , Musculoskeletal Diseases/epidemiology , Occupational Diseases/epidemiology , Occupational Exposure/analysis , Occupations/statistics & numerical data , Prevalence , Risk Factors , Sex Factors , Upper Extremity , Vibration , Workload , Workplace
8.
Am J Epidemiol ; 181(6): 431-9, 2015 Mar 15.
Article in English | MEDLINE | ID: mdl-25700886

ABSTRACT

A job exposure matrix may be useful for the study of biomechanical workplace risk factors when individual-level exposure data are unavailable. We used job title-based exposure data from a public data source to construct a job exposure matrix and test exposure-response relationships with prevalent carpal tunnel syndrome (CTS). Exposures of repetitive motion and force from the Occupational Information Network were assigned to 3,452 active workers from several industries, enrolled between 2001 and 2008 from 6 studies. Repetitive motion and force exposures were combined into high/high, high/low, and low/low exposure groupings in each of 4 multivariable logistic regression models, adjusted for personal factors. Although force measures alone were not independent predictors of CTS in these data, strong associations between combined physical exposures of force and repetition and CTS were observed in all models. Consistent with previous literature, this report shows that workers with high force/high repetition jobs had the highest prevalence of CTS (odds ratio = 2.14-2.95) followed by intermediate values (odds ratio = 1.09-2.27) in mixed exposed jobs relative to the lowest exposed workers. This study supports the use of a general population job exposure matrix to estimate workplace physical exposures in epidemiologic studies of musculoskeletal disorders when measures of individual exposures are unavailable.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Occupational Diseases/epidemiology , Occupations , Adult , Cumulative Trauma Disorders/complications , Female , Humans , Logistic Models , Male , Middle Aged , Occupational Exposure/adverse effects , Prevalence , Risk Factors
9.
J Occup Environ Med ; 57(1): 98-104, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25563546

ABSTRACT

OBJECTIVE: Evaluate associations between personal and workplace factors and median nerve conduction latency at the wrist. METHODS: Baseline data on workplace psychosocial and physical exposures were pooled from four prospective studies of production and service workers (N = 2396). During the follow-up period, electrophysiologic measures of median nerve function were collected at regular intervals. RESULTS: Significant adjusted associations were observed between age, body mass index, sex, peak hand force, duration of forceful hand exertions, Threshold Limit Value for Hand Activity Limit, forceful repetition rate, wrist extension, and decision latitude on median nerve latencies. CONCLUSIONS: Occupational and nonoccupational factors have adverse effects on median nerve function. Measuring median nerve function eliminates possible reporting bias that may affect symptom-based carpal tunnel syndrome case definitions. These results suggest that previously observed associations between carpal tunnel syndrome and occupational factors are not the result of such reporting bias.


Subject(s)
Carpal Tunnel Syndrome/physiopathology , Median Nerve/physiopathology , Neural Conduction/physiology , Occupational Exposure , Physical Exertion/physiology , Adult , Age Factors , Biomechanical Phenomena/physiology , Body Mass Index , Female , Hand Strength , Humans , Male , Middle Aged , Movement/physiology , Posture , Professional Autonomy , Sex Factors , Surveys and Questionnaires , United States , Workplace/psychology , Wrist/physiology
10.
Occup Environ Med ; 72(1): 33-41, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25324489

ABSTRACT

BACKGROUND: Between 2001 and 2010, five research groups conducted coordinated prospective studies of carpal tunnel syndrome (CTS) incidence among US workers from various industries and collected detailed subject-level exposure information with follow-up of symptoms, electrophysiological measures and job changes. OBJECTIVE: This analysis examined the associations between workplace biomechanical factors and incidence of dominant-hand CTS, adjusting for personal risk factors. METHODS: 2474 participants, without CTS or possible polyneuropathy at enrolment, were followed up to 6.5 years (5102 person-years). Individual workplace exposure measures of the dominant hand were collected for each task and included force, repetition, duty cycle and posture. Task exposures were combined across the workweek using time-weighted averaging to estimate job-level exposures. CTS case-criteria were based on symptoms and results of electrophysiological testing. HRs were estimated using Cox proportional hazard models. RESULTS: After adjustment for covariates, analyst (HR=2.17; 95% CI 1.38 to 3.43) and worker (HR=2.08; 95% CI 1.31 to 3.39) estimated peak hand force, forceful repetition rate (HR=1.84; 95% CI 1.19 to 2.86) and per cent time spent (eg, duty cycle) in forceful hand exertions (HR=2.05; 95% CI 1.34 to 3.15) were associated with increased risk of incident CTS. Associations were not observed between total hand repetition rate, per cent duration of all hand exertions, or wrist posture and incident CTS. CONCLUSIONS: In this prospective multicentre study of production and service workers, measures of exposure to forceful hand exertion were associated with incident CTS after controlling for important covariates. These findings may influence the design of workplace safety programmes for preventing work-related CTS.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Carpal Tunnel Syndrome/physiopathology , Occupational Diseases/epidemiology , Occupational Diseases/physiopathology , Posture/physiology , Adult , Biomechanical Phenomena , Carpal Tunnel Syndrome/etiology , Female , Follow-Up Studies , Hand Strength/physiology , Humans , Incidence , Male , Median Nerve/physiopathology , Middle Aged , Occupational Diseases/etiology , Prospective Studies , Risk Factors , Time Factors , Ulnar Nerve/physiopathology , United States/epidemiology
11.
Occup Environ Med ; 72(2): 130-7, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25504866

ABSTRACT

BACKGROUND: Six research groups independently conducted prospective studies of carpal tunnel syndrome (CTS) incidence in 54 US workplaces in 10 US States. Physical exposure variables were collected by all research groups at the individual worker level. Data from these research groups were pooled to increase the exposure spectrum and statistical power. OBJECTIVE: This paper provides a detailed description of the characteristics of the pooled physical exposure variables and the source data information from the individual research studies. METHODS: Physical exposure data were inspected and prepared by each of the individual research studies according to detailed instructions provided by an exposure subcommittee of the research consortium. Descriptive analyses were performed on the pooled physical exposure data set. Correlation analyses were performed among exposure variables estimating similar exposure aspects. RESULTS: At baseline, there were a total of 3010 participants in the pooled physical exposure data set. Overall, the pooled data meaningfully increased the spectra of most exposure variables. The increased spectra were due to the wider range in exposure data of different jobs provided by the research studies. The correlations between variables estimating similar exposure aspects showed different patterns among data provided by the research studies. CONCLUSIONS: The increased spectra of the physical exposure variables among the data pooled likely improved the possibility of detecting potential associations between these physical exposure variables and CTS incidence. It is also recognised that methods need to be developed for general use by all researchers for standardisation of physical exposure variable definition, data collection, processing and reduction.


Subject(s)
Carpal Tunnel Syndrome/etiology , Datasets as Topic , Motor Activity , Movement , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Work , Adult , Female , Hand , Humans , Male , Middle Aged , Occupations , Physical Exertion , Prospective Studies , Risk Factors , United States , Wrist
12.
Scand J Work Environ Health ; 40(6): 610-620, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25266844

ABSTRACT

OBJECTIVES: This paper aimed to quantify exposure-response relationships between the American Conference of Governmental Industrial Hygienists' (ACGIH) threshold limit value (TLV) for hand-activity level (HAL) and incidence of carpal tunnel syndrome (CTS). METHODS: Manufacturing and service workers previously studied by six research institutions had their data combined and re-analyzed. CTS cases were defined by symptoms and abnormal nerve conduction. Hazard ratios (HR) were calculated using proportional hazards regression after adjusting for age, gender, body mass index, and CTS predisposing conditions. RESULTS: The longitudinal study comprised 2751 incident-eligible workers, followed prospectively for up to 6.4 years and contributing 6243 person-years of data. Associations were found between CTS and TLV for HAL both as a continuous variable [HR 1.32 per unit, 95% confidence interval (95% CI) 1.11-1.57] and when categorized using the ACGIH action limit (AL) and TLV. Those between the AL and TLV and above the TLV had HR of 1.7 (95% CI 1.2-2.5) and 1.5 (95% CI 1.0-2.1), respectively. As independent variables (in the same adjusted model) the HR for peak force (PF) and HAL were 1.14 per unit (95% CI 1.05-1.25), and 1.04 per unit (95% CI 0.93-1.15), respectively. CONCLUSION: Those with exposures above the AL were at increased risk of CTS, but there was no further increase in risk for workers above the TLV. This suggests that the current AL may not be sufficiently protective of workers. Combinations of PF and HAL are useful for predicting risk of CTS.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Hand , Occupational Exposure , Adolescent , Adult , Aged , Biomechanical Phenomena/physiology , Carpal Tunnel Syndrome/etiology , Female , Hand/physiology , Humans , Male , Middle Aged , Risk Factors , Threshold Limit Values , Young Adult
13.
Arch Phys Med Rehabil ; 95(12): 2320-6, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25175160

ABSTRACT

OBJECTIVE: To analyze differences in carpal tunnel syndrome (CTS) prevalence using a combination of electrodiagnostic studies (EDSs) and symptoms using EDS criteria varied across a range of cutpoints and compared with symptoms in both ≥1 and ≥2 median nerve-served digits. DESIGN: Pooled data from 5 prospective cohorts. SETTING: Hand-intensive industrial settings, including manufacturing, assembly, production, service, construction, and health care. PARTICIPANTS: Employed, working-age participants who are able to provide consent and undergo EDS testing (N=3130). INTERVENTIONS: None. MAIN OUTCOME MEASURES: CTS prevalence was estimated while varying the thresholds for median sensory latency, median motor latency, and transcarpal delta latency difference. EDS criteria examined included the following: median sensory latency of 3.3 to 4.1 milliseconds, median motor latency of 4.1 to 4.9 milliseconds, and median-ulnar sensory difference of 0.4 to 1.2 milliseconds. EDS criteria were combined with symptoms in ≥1 or ≥2 median nerve-served digits. EDS criteria from other published studies were applied to allow for comparison. RESULTS: CTS prevalence ranged from 6.3% to 11.7%. CTS prevalence estimates changed most per millisecond of sensory latency compared with motor latency or transcarpal delta. CTS prevalence decreased by 0.9% to 2.0% if the criteria required symptoms in 2 digits instead of 1. CONCLUSIONS: There are meaningful differences in CTS prevalence when different EDS criteria are applied. The digital sensory latency criteria result in the largest variance in prevalence.


Subject(s)
Carpal Tunnel Syndrome/diagnosis , Carpal Tunnel Syndrome/epidemiology , Electrodiagnosis , Occupational Injuries/diagnosis , Occupational Injuries/epidemiology , Adult , Carpal Tunnel Syndrome/physiopathology , Construction Industry , Female , Health Care Sector , Humans , Male , Manufacturing Industry , Median Nerve/physiopathology , Middle Aged , Prevalence , Reaction Time , Ulnar Nerve/physiopathology
15.
Occup Environ Med ; 70(8): 568-74, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23788614

ABSTRACT

OBJECTIVES: To quantify the risk for carpal tunnel syndrome (CTS) from workplace physical factors, particularly hand activity level and forceful exertion, while taking into account individual factors including age, gender, body mass index (BMI), and pre-existing medical conditions. METHODS: Three healthcare and manufacturing workplaces were selected for inclusion on the basis of range of exposure to hand activity level and forceful exertion represented by their jobs. Each study participant's job tasks were observed and evaluated onsite and videotaped for further analysis, including frequency and duration of exertion and postural deviation. Individual health assessment entailed electrodiagnostic testing of median and ulnar nerves, physical examination and questionnaires at baseline with annual follow-up for 2 years. RESULTS: The incidence of dominant hand CTS during the study was 5.11 per 100 person-years (29 cases). Adjusted HRs for dominant hand CTS were as follows: working with forceful exertion ≥ 20% but <60% of the time: 2.83 (1.18, 6.79) and ≥ 60% of the time vs <20%: 19.57 (5.96, 64.24), BMI ≥ 30 kg/m(2) (obesity): 3.19 (1.28, 7.98). The American Conference for Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV) for hand activity level also predicted CTS, HR=1.40 (1.11, 1.78) for each unit increase in the TLV ratio, controlling for obesity and job strain. CONCLUSIONS: Workplace and individual risk factors both contribute to the risk for CTS. Time spent in forceful exertion can be a greater risk for CTS than obesity if the job exposure is high. Preventive workplace efforts should target forceful exertions.


Subject(s)
Carpal Tunnel Syndrome/etiology , Hand , Muscle Contraction , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Occupations , Physical Exertion , Adult , Aged , Body Mass Index , Female , Functional Laterality , Health Personnel , Humans , Industry , Male , Middle Aged , Obesity/complications , Occupational Health , Posture , Proportional Hazards Models , Prospective Studies , Risk Factors , Surveys and Questionnaires , Threshold Limit Values , Ulnar Nerve , Work , Workplace , Young Adult
16.
Occup Environ Med ; 70(8): 529-37, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23645610

ABSTRACT

BACKGROUND: Between 2001 and 2010, six research groups conducted coordinated multiyear, prospective studies of carpal tunnel syndrome (CTS) incidence in US workers from various industries and collected detailed subject-level exposure information with follow-up symptom, physical examination, electrophysiological measures and job changes. OBJECTIVE: This analysis of the pooled cohort examined the incidence of dominant-hand CTS in relation to demographic characteristics and estimated associations with occupational psychosocial factors and years worked, adjusting for confounding by personal risk factors. METHODS: 3515 participants, without baseline CTS, were followed-up to 7 years. Case criteria included symptoms and an electrodiagnostic study consistent with CTS. Adjusted HRs were estimated in Cox proportional hazard models. Workplace biomechanical factors were collected but not evaluated in this analysis. RESULTS: Women were at elevated risk for CTS (HR=1.30; 95% CI 0.98 to 1.72), and the incidence of CTS increased linearly with both age and body mass index (BMI) over most of the observed range. High job strain increased risk (HR=1.86; 95% CI 1.11 to 3.14), and social support was protective (HR=0.54; 95% CI 0.31 to 0.95). There was an inverse relationship with years worked among recent hires with the highest incidence in the first 3.5 years of work (HR=3.08; 95% CI 1.55 to 6.12). CONCLUSIONS: Personal factors associated with an increased risk of developing CTS were BMI, age and being a woman. Workplace risk factors were high job strain, while social support was protective. The inverse relationship between CTS incidence and years worked among recent hires suggests the presence of a healthy worker survivor effect in the cohort.


Subject(s)
Carpal Tunnel Syndrome/etiology , Obesity/complications , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Occupations , Social Support , Stress, Psychological/complications , Adult , Age Factors , Body Mass Index , Carpal Tunnel Syndrome/prevention & control , Carpal Tunnel Syndrome/psychology , Female , Follow-Up Studies , Humans , Male , Middle Aged , Occupational Diseases/prevention & control , Occupational Diseases/psychology , Proportional Hazards Models , Prospective Studies , Risk Factors , Sex Factors , Workplace
17.
Ergonomics ; 56(6): 1021-37, 2013.
Article in English | MEDLINE | ID: mdl-23697792

ABSTRACT

Pooling data from different epidemiological studies of musculoskeletal disorders (MSDs) is necessary to improve statistical power and to more precisely quantify exposure-response relationships for MSDs. The pooling process is difficult and time-consuming, and small methodological differences could lead to different exposure-response relationships. A sub-committee of a six-study research consortium studying carpal tunnel syndrome: (i) visited each study site, (ii) documented methods used to collect physical exposure data and (iii) determined compatibility of exposure variables across studies. Certain measures of force, frequency of exertion and duty cycle were collected by all studies and were largely compatible. A portion of studies had detailed data to investigate simultaneous combinations of force, frequency and duration of exertions. Limited compatibility was found for hand/wrist posture. Only two studies could calculate compatible Strain Index scores, but Threshold Limit Value for Hand Activity Level could be determined for all studies. Challenges of pooling data, resources required and recommendations for future researchers are discussed. PRACTITIONER SUMMARY: There is a need for standardised measures and measurement protocols of physical exposure for the upper extremity. This study may provide guidance for those planning to conduct an epidemiological study on quantified job physical exposures, or planning to merge physical exposure data from similar studies with some methodologic differences.


Subject(s)
Carpal Tunnel Syndrome , Data Collection/methods , Meta-Analysis as Topic , Occupational Diseases , Occupational Exposure , Research Design/standards , Humans
18.
Scand J Work Environ Health ; 39(5): 495-505, 2013 Sep 01.
Article in English | MEDLINE | ID: mdl-23423472

ABSTRACT

OBJECTIVES: Most studies of carpal tunnel syndrome (CTS) incidence and prevalence among workers have been limited by small sample sizes or restricted to a small subset of jobs. We established a common CTS case definition and then pooled CTS prevalence and incidence data across six prospective studies of musculoskeletal outcomes to measure CTS frequency and allow better studies of etiology. METHODS: Six research groups collected prospective data at > 50 workplaces including symptoms characteristic of CTS and electrodiagnostic studies (EDS) of the median and ulnar nerves across the dominant wrist. While study designs and the timing of data collection varied across groups, we were able to create a common CTS case definition incorporating both symptoms and EDS results from data that were collected in all studies. RESULTS: At the time of enrollment, 7.8% of 4321 subjects met our case definition and were considered prevalent cases of CTS. During 8833 person-years of follow-up, an additional 204 subjects met the CTS case definition for an overall incidence rate of 2.3 CTS cases per 100 person-years. CONCLUSIONS: Both prevalent and incident CTS were common in data pooled across multiple studies and sites. The large number of incident cases in this prospective study provides adequate power for future exposure-response analyses to identify work- and non-work-related risk factors for CTS. The prospective nature allows determination of the temporal relations necessary for causal inference.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Female , Humans , Incidence , Male , Prevalence , United States/epidemiology
20.
Occup Environ Med ; 68(12): 928-33, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21613639

ABSTRACT

OBJECTIVES: To quantify the relationship between workplace physical factors, particularly hand activity level (HAL) and forceful exertion and carpal tunnel syndrome (CTS), while taking into account individual factors. To compare quantitative exposure assessment measures with more practical ratings-based measures. METHODS: In a group of healthcare and manufacturing workers, each study participant's job tasks were evaluated for HAL, forceful exertion and other physical stressors and videotaped for further analysis, including frequency and duration of exertion and postural deviation. Electrodiagnostic testing of median and ulnar nerves and questionnaires were administered to all participants. A CTS case required median mononeuropathy and symptoms on hand diagrams in fingers 1-3. Multiple logistic regression models were used to analyse associations between job and individual factors and CTS. RESULTS: Of 477 workers studied, 57 (11.9%) were dominant hand CTS cases. Peak force ≥70% maximum voluntary contraction versus <20% maximum voluntary contraction resulted in an OR of 2.74 (1.32-5.68) for CTS. Among those with a body mass index ≥30, the OR for ≥15 exertions per minute was 3.35 (1.14-9.87). Peak worker ratings of perceived exertion increased the odds for CTS by 1.14 (1.01-1.29) for each unit increase on the 10-point scale. The odds for CTS increased by 1.38 (1.05-1.81) for each unit increase on the HAL 10-point scale among men, but not women. Combined force and HAL values above the ACGIH TLV for HAL resulted in an OR of 2.96 (1.51-5.80) for CTS. DISCUSSION/CONCLUSIONS: Quantitative and ratings-based job exposure measures were each associated with CTS. Obesity increased the association between frequency of exertion and CTS.


Subject(s)
Carpal Tunnel Syndrome/epidemiology , Occupational Diseases/epidemiology , Adult , Aged , Body Mass Index , Cross-Sectional Studies , Electrodiagnosis , Female , Health Personnel , Humans , Industry , Male , Median Nerve/physiopathology , Middle Aged , Risk Factors , Ulnar Nerve/physiopathology , Workplace/statistics & numerical data
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