Prevalence, pattern and predictors of work-related musculoskeletal disorders among oil workers in Nigeria.

BACKGROUND: Work-related musculoskeletal disorders (WMSD) account for a loss of GDP in most countries. The oil sector is the largest and most economically relevant industry in Nigeria, yet the impact of WMSD on workers in this industry is unknown. OBJECTIVE: To assess the prevalence, pattern and predictors of WMSD among oil workers in Nigeria. METHODS: This exploratory study was conducted in oil producing companies in Nigeria. Nordic Musculoskeletal Questionnaire was used to assess WMSD, while risk factors and demographic variables were obtained through an interview. Obtained data were analysed using descriptive statistics, Chi-square and logistic regression at α=0.05RESULTS:A total of 198 (138 male, 60 female) oil workers aged 40.3±10.1 years participated in this study. The prevalence of WMSD was 88.8%, and was most common around the low-back (51.5%), and neck (44.4%) regions. There was a significant association between WMSD and each of duration of service (X2 = 45.44, p = 0.020), awkward neck postures at work (X2 = 12.46, p = 0.006), inadequate training on injury prevention (X2 = 11.98, p = 0.007), and continuing to work while feeling discomfort (X2 = 10.83, p = 0.013). Post-hoc analysis revealed that being a male oil worker (OR = 1.17, p = 0.037) and continuing to work while feeling discomfort or pain (OR = 2.23, p = 0.048) were the significant predictors of WMSD. CONCLUSIONS: Approximately nine in every ten oil workers in Nigeria have a WMSD. Male gender and work persistence amidst discomfort or pain are the predictors of WMSD among oil workers in Nigeria. Ergonomics training and evaluation programme is recommended for workers in this industry.

Cross-cultural adaptation and validation of the Igbo language version of the stroke-specific quality of life scale 2.0.

INTRODUCTION: availability of the Stroke-Specific Quality of Life scale 2.0 (SS-QoL(E)) in Yoruba and Hausa, two of the three major indigenous languages in Nigeria have the potential to promote its uptake among these population, however, its non-availability in the Igbo languages makes its use restrictive among the south-eastern Nigerians. This study was aimed at cross-culturally adapting and assessing validity and reliability of the Igbo version of the SS-QoL. METHODS: the SS-QoL(E) was cross-culturally adapted to Igbo following the American Association of Orthopaedic Surgeons' guideline. This involved forward and back-translations, expert committee review, pretesting and cognitive debriefing interview to produce the final Igbo version, SS-QoL(I). The validity and reliability test involved 50 consenting Igbo stroke survivors. The construct validity was assessed by administering SS-QoL(E) and SS-QoL(I) on all 50 respondents, while SS-QoL(I) was re-administered at 7-day interval to assess test-retest reliability. Each scale was administered in random order. Data were analysed using Spearman's correlation, Wilcoxon's signed-rank test, Cronbach's alpha, Intra-class Correlation Coefficient (ICC), independent t-test and one-way ANOVA at p<0.05. RESULTS: respondents' domains scores on SS-QoL(E) and SS-QoL(I) did not differ significantly except in mobility and work (r=0.58 to 0.87; p=0.001). Cronbach's alpha was 0.69 to 0.87 for domains scores. The ICC ranged from 0.48 to 0.84, while no significant differences was found across different age groups or gender for the domains or overall scores of SS-QoL(I). CONCLUSION: the Igbo version of the SS-QoL has limited alterations from the original version and has moderate to excellent validity and reliability values.

Healthcare professionals' perception of quality of care of patients with cardiac disease in Nigeria: Implication for clinical guideline, inter-professional education and team work.

Background: Heart disease is one of the leading chronic conditions posing a major and growing threat to the public. Studies on quality of care given to patients with heart diseases in Nigeria are not available. The purpose of this study was to explore healthcare professionals' perception of quality of care of patients with heart disease at a tertiary hospital in Nigeria. Methods: A mixed method design was utilized in this study. Twenty eight healthcare professionals consisting of cardiologists, nurses, physiotherapists and dieticians were recruited into the study through purposive sampling technique. A questionnaire developed and validated from existing questionnaire was used to survey the health care professionals' perception of care and qualitative design was further used to explore their perceptions of care. The data were analyzed using descriptive statistics of percentages and graphs. The qualitative data were analyzed using thematic analysis. Quality of care was assessed through structure, process and outcome of care indices. Results: The mean age of the healthcare professionals was 38.46±8.988 years. 19 (66.7%) reported that there were treatment guidelines for cardiac disease management but there was no system for internal quality assurance. 18 (95%) out of these 19 healthcare professionals reported that the treatment guidelines were either never applied or not applied regularly during treatment. Other areas that were perceived as poor were poor teamwork, poor staff strength, inadequate equipment, and inadequate consultation with staff during procurement of medical supplies. Conclusion: Quality of care for cardiac patients in a Nigerian tertiary hospital was perceived as sub-optimal. There is a need for the improvement of the structure and process of quality of care to enhance quality of care for cardiac patients in Nigeria.

Validity and reliability of a Nigerian-Yoruba version of the stroke-specific quality of life scale 2.0.

BACKGROUND: Psychometric evidence is necessary to establish scientific integrity and clinical usefulness of translations and cultural adaptations of the Stroke-Specific Quality of Life (SS-QoL) scale. However, the limited evidence on psychometrics of Yoruba version of SS-QoL 2.0 (SS-QoL(Y)) is a significant shortcoming. This study assessed the test-retest reliability, internal consistency, convergent, divergent, discriminant and known-group validity of the SS-QoL(Y). METHODS: Yoruba version of the WHOQoL-BREF was used to test the convergent and divergent validity of the SS-QoL(Y) among 100 consenting stroke survivors. The WHOQoL-BREF and SS-QoL(Y) was administered randomly in order to eliminate bias. The test-retest reliability of the SS-QoL(Y) was carried out among 68 of the respondents within an interval of 7 days. All respondents were purposively recruited from selected secondary and tertiary health facilities in South-west Nigeria. Data were analysed using descriptive statistics of mean and standard deviation, and inferential statistics of Spearman correlation, Cronbach's alpha, Intra-class Correlation Coefficient (ICC), Independent t-test and One-way ANOVA. Alpha level was set at p < 0.05. RESULT: The physical health, psychological health, social relationship and environment domains on WHOQoL-BREF with correlation coefficient that ranged from 0.214 to 0.360 showed significant correlation with similar domains on SS-QoL(Y). Dissimilar domains between the two scales had r values from 0.035 to 0.366. Discriminant validity of SS-QoL(Y) showed that items' r value ranged from 0.711 to 0.920 with their hypothesized domains. The scale demonstrated moderate to strong test-retest reliability with Intra-class correlation coefficient (ICC) for the domains and overall scores (r = 0.47 to 0.81) and moderate to high internal consistency (Cronbach's alpha =0.61 to 0.82) for domains scores. These correlations were also significant for the domains and overall scores (p < 0.05). There were no significant differences across different age groups or gender for the domains or overall scores of SS-QoL(Y). CONCLUSIONS: Discriminant and known-group validity, test-retest reliability and internal consistency of the Yoruba version of the Stroke Specific Quality of Life 2.0 are adequate while the convergent and divergent validity are low but acceptable. The SS-QoL(Y) is recommended for assessing health-related quality of life among Yoruba stroke survivors.

Effects of aerobic dance training on blood pressure in individuals with uncontrolled hypertension on two antihypertensive drugs: a randomized clinical trial.

There is a dearth of reports on possible additive blood pressure (BP)-reducing effect of aerobic exercise on antihypertensive drug in humans. This study investigated the additive BP-reducing effect of aerobic exercise on BP in individuals with uncontrolled hypertension. In this 12-week double-blind study, 120 new-diagnosed individuals with mild-to-moderate hypertension were randomized to receive coamilozide + 5/10 mg of amlodipine + aerobic dance or coamilozide + 5/10 mg of amlodipine alone. Forty-five and 43 participants in exercise and control groups, respectively, completed the 12-week intervention. Addition of aerobic exercise to antihypertensive drug therapy significantly reduced systolic BP (7.1 mm Hg [95% confidence interval: 5.0, 9.3]; P < .001) and diastolic BP (1.7 mm Hg [95% confidence interval: 0.4, 3.0]; P = .009) at 12 weeks. BP control rate differed significantly between exercise (53.9%) and control (35.3%) groups, P < .001. Postintervention, proportion of participants in exercise group who had their number of antihypertensive drug reduced to one (20.3%) differed from that in control group (11.1%); (χ(2) = 11.0; P = .001). Combination of aerobic dance and antihypertensive drugs reduces number of antihypertensive drugs needed to achieve BP control and enhances BP control in individuals with hypertension on two antihypertensive drugs.