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OBJECTIVES: Scientific evidence provides a widened view of differences in immune response between male and female neonates. The X-chromosome codes for several genes important in the innate immune response and neonatal innate immune cells express receptors for, and are inhibited by, maternal sex hormones. We hypothesized that sex differences in innate immune responses may be present in the neonatal population which may contribute to the increased susceptibility of premature males to sepsis. We aimed to examine the in vitro effect of pro-inflammatory stimuli and hormones in neutrophils and monocytes of male and female neonates, to examine the expression of X-linked genes involved in innate immunity and the miRNA profiles in these populations. METHODS: Preterm infants (n = 21) and term control (n = 19) infants were recruited from the Coombe Women and Infants University Hospital Dublin with ethical approval and explicit consent. The preterm neonates (eight female, 13 male) were recruited with a mean gestation at birth (mean ± SD) of 28 ± 2 weeks and corrected gestation at the time of sampling was 30 + 2.6 weeks. The mean birth weight of preterm neonates was 1084 ± 246 g. Peripheral blood samples were used to analyze immune cell phenotypes, miRNA human panel, and RNA profiles for inflammasome and inflammatory genes. RESULTS: Dividing neutrophil results by sex showed no differences in baseline CD11b between sexes among either term or preterm neonates. Examining monocyte CD11b by sex shows, that at baseline, total and classical monocytes have higher CD11b in preterm females than preterm males. Neutrophil TLR2 did not differ between sexes at baseline or following lipopolysaccharide (LPS) exposure. CD11b expression was higher in preterm male non-classical monocytes following Pam3CSK treatment when compared to females, a finding which is unique to our study. Preterm neonates had higher TLR2 expression at baseline in total monocytes, classical monocytes and non-classical monocytes than term. A sex difference was evident between preterm females and term females in TLR2 expression only. Hormone treatment showed no sex differences and there was no detectable difference between males and females in X-linked gene expression. Two miRNAs, miR-212-3p and miR-218-2-3p had significantly higher expression in preterm female than preterm male neonates. CONCLUSIONS: This study examined immune cell phenotypes and x-linked gene expression in preterm neonates and stratified according to gender. Our findings suggest that the responses of females mature with advancing gestation, whereas male term and preterm neonates have very similar responses. Female preterm neonates have improved monocyte activation than males, which likely reflects improved innate immune function as reflected clinically by their lower risk of sepsis. Dividing results by sex showed changes in preterm and term infants at baseline and following LPS stimulation, a difference which is reflected clinically by infection susceptibility. The sex difference noted is novel and may be limited to the preterm or early neonatal population as TLR2 expression on monocytes of older children does not differ between males and females. The differences shown in female and male innate immune cells likely reflect a superior innate immune defense system in females with sex differences in immune cell maturation. Existing human studies on sex differences in miRNA expression do not include preterm patients, and most frequently use either adult blood or cord blood. Our findings suggest that miRNA profiles are similar in neonates of opposite sexes at term but require further investigation in the preterm population. Our findings, while novel, provide only very limited insights into sex differences in infection susceptibility in the preterm population leaving many areas that require further study. These represent important areas for ongoing clinical and laboratory study and our findings represent an important contribution to exiting literature.
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Immunity, Innate , Infant, Premature , Humans , Female , Male , Infant, Newborn , Immunity, Innate/genetics , Infant, Premature/immunology , Case-Control Studies , Neutrophils/metabolism , Neutrophils/immunology , Sex Factors , Monocytes/immunology , Monocytes/metabolism , MicroRNAs/genetics , Gonadal Steroid Hormones/blood , Genes, X-LinkedABSTRACT
Objectives: To determine the prevalence of frailty among community-dwelling older adults in regional Victoria, Australia. Methods: Frailty status of 376 participants from the Crossroads II cross-sectional study was assessed by selected markers of frailty. The selected variables were psychometrically tested. Associations between frailty and socio-demographic, environmental and health factors were analysed using chi-square, ANOVA and binary logistic regression (BLR). Results: Estimated prevalence of frailty was 39.4%. BLR indicated that frailty decreased with higher educational attainment, (OR = .23; 95% CI: .10-.51) increased for divorced/separated participants (OR = 2.68; 95% CI: 1.29-5.56) and when having three (OR = 3.27; 95% CI: 1.07-9.98), four (OR = 7.20; 95% CI: 2.22-23.31) or five or more chronic conditions (OR = 9.18; 95% CI: 2.83-29.72). Discussion: Frailty in this Australian regional community-dwelling sample was higher than other studies conducted in urban areas of Australia. Present results highlight the importance of exploring the multidimensionality of the frailty construct to have a better understanding which factors are associated with the development of this syndrome.
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Frailty , Population Health , Humans , Aged , Frailty/epidemiology , Frail Elderly , Victoria/epidemiology , Cross-Sectional Studies , Independent Living , Prevalence , Geriatric AssessmentABSTRACT
BACKGROUND: Efforts to progress oral healthcare reform can be challenging with competing interests of governments and service providers to achieve the intended outcomes. The value-based health care approach has been adopted in many areas of healthcare but has had limited applications to oral healthcare systems. Dental Health Services Victoria, an Australian state government funded entity, commenced its journey to value-based health care in 2016, to shift away from traditional dental service models that reward activity and volume towards a stronger emphasis on value and outcomes. AIMS: To maintain the value-based health care agenda focus, Dental Health Services Victoria developed three key principles, which can be adopted by other organisations engaged in reforming oral healthcare, to improve the oral health for the population it serves. MATERIALS & METHODS: In 2018, Dental Health Services Victoria developed a value-based health care framework, which has informed strategic organisation priorities for action. In 2023, the following three key principles are identified as being essential to support the operationalisation and development of effective models of oral healthcare: Principle 1 - Care is co-designed with the person or population Principle 2 - Prevention and early intervention are prioritised. Principle 3 - Consistent measurement of health outcomes and costs are embedded. DISCUSSION: The exploration of the three key principles is an important communication tool to translate value-based health care into practice with key stakeholders. Further work is required to socialise them to within dental teams. CONCLUSION: Organisations looking to commence the value-based health care agenda can apply Dental Health Services Victoria's three key principles as a first step.
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Dental Health Services , Oral Health , Humans , Value-Based Health Care , Australia , Delivery of Health CareABSTRACT
It is unclear how well self-rated oral health (SROH) reflects actual oral health status in the rural Australian population. Therefore, this study aimed to compare the clinically assessed oral health status and SROH of adults living in rural Australia. The data were from 574 participants who took part in the Crossroads II cross-sectional study. Three trained and calibrated dentists evaluated the oral health status of participants based on WHO criteria. SROH was assessed with the question 'Overall, how would you rate the health of your teeth and gums?', with a score ranging from excellent = 5 to poor = 1. A logistic regression analysis (LRA) was performed, allowing us to assess factors associated with SROH. The mean age of participants was 59.2 years (SD 16.3), and 55.3% were female. The key results from the LRA show poorer SROH in those with more missing teeth (OR = 1.05; 95% CI; 1.01-1.08), more decayed teeth (OR = 1.28; 95% CI: 1.11-1.46), and more significant clinical attachment loss of periodontal tissue (6mm or more) (OR = 2.63; 95% CI: 1.29-5.38). This study found an association between negative SROH and clinical indicators used to measure poor oral health status, suggesting that self-rated oral health is an indicator of oral health status. When planning dental healthcare programs, self-reported oral health should be considered a proxy measure for oral health status.
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INTRODUCTION: To investigate factors associated with suicidal ideation and suicide attempts amongst Australian dental practitioners. METHODS: A self-reported online survey of 1474 registered dental practitioners in Australia was conducted from October to December 2021. Participants reported thoughts of suicide in the preceding 12 months, prior to the preceding 12 months and prior suicide attempts. RESULTS: Overall, 17.6% reported thoughts of suicide in the preceding 12 months, 31.4% prior to the preceding 12 months, and 5.6% reported ever having made a suicide attempt. In multivariate models, the odds of suicidal ideation in the preceding 12 months were higher in dental practitioners who were male (OR = 2.01), had a current diagnosis of depression (OR = 1.62), were experiencing moderate (OR = 2.76) or severe psychological distress (OR = 3.58), had self-reported illicit substance use (OR = 2.06) or had previous self-reported suicide attempts (OR = 3.02). Younger dental practitioners had more than twice the odds of recent suicidal ideation than those aged 61+ years, with higher resilience having decreasing odds of suicidal ideation. LIMITATIONS: This study did not address help seeking behaviours directly related to suicidal ideation, so it is not clear how many participants were actively seeking mental health support. The response rate was low and results may be subject to responder biases, with practitioners experiencing depression, stress and burnout being more willing to participate. CONCLUSION: These finding highlight a high prevalence of suicidal ideation amongst Australian dental practitioners. It is important to continue to monitor their mental health and develop tailored programs to provide essential interventions and supports.
Subject(s)
Suicidal Ideation , Suicide, Attempted , Humans , Male , Female , Suicide, Attempted/psychology , Dentists , Australia/epidemiology , Professional Role , Risk FactorsABSTRACT
OBJECTIVES: A systematic review and meta-analysis were conducted to determine if children born with cleft lip and/or palate are at increased risk of psychological and peer difficulties, and if so, which difficulties they develop. METHODS: EMBASE, MEDLINE, and PsycINFO were searched for English language studies published between January 2005 and January 2022 which investigated the psychological outcomes and peer function of children with nonsyndromic cleft lip and palate. Outcomes included internalizing problems, such as anxiety and depression, externalizing problems, such as hyperactivity, conduct disorders, self-concept including self-image and self-esteem, peer problems, resilience, coping, and overall psychological function. A risk of bias assessment was performed using the Newcastle-Ottawa Scale. Random effects models were used in the meta-analysis to compare the outcomes for children born with a cleft and those without. RESULTS: In total 41 studies met inclusion criteria, with 9 included in the meta-analysis. Children born with a cleft appear to have similar psychological outcomes compared to normative controls when using the strengths and difficulties questionnaire. There are some minor differences between self-report and parent report, with parents generally reporting that their child with a cleft has increased emotional, conduct, and hyperactivity problems. The small differences between the study cohort and control cohorts are unlikely to imply any differences on a clinical level. CONCLUSIONS: Overall psychological outcomes appear to be similar between children born with a cleft and the nonaffected population, however, some symptoms such as anxiety and depression appear higher in children with cleft lip and/or palate.
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PURPOSE: Survivors of stroke experience poor oral health during and following hospitalisation. Health professionals consistently report that oral hygiene is complex. Interventions aiming to improve the delivery of oral hygiene care by health professionals rarely use a theoretically driven approach. This study reports the first phase in an intervention development and uses the action, actor, context, target, time (AACTT) framework and theoretical domains framework (TDF) to understand who needs to do what differently in the delivery of oral hygiene care with hospitalised stroke survivors. METHOD: Mixed methods including analysis of oral health policies and clinical guidelines using the AACTT framework, focus group discussions using the TDF and audit of 60 medical records. RESULTS: Policies and guidelines lack specificity regarding what oral hygiene care is and who should be responsible. Health professionals have low beliefs in their capabilities and experience numerous contextual barriers. More than 40% of patients had no documented evidence of oral hygiene care. CONCLUSION: This study used a theoretically driven approach to identify barriers and enablers to health professional delivery of oral hygiene care with stroke survivors. Interventions aiming to improve clinical practice should target beliefs about capabilities, improved access to resources and detailed oral hygiene clinical guidelines.Implications for rehabilitationSurvivors of stroke experience poor oral health which can contribute to further strokes, cardiovascular disease and mortality.Health care professionals report difficulties in delivering oral hygiene care to hospitalised stroke survivors and clinical guidelines lack detail regarding oral health assessments, interventions and training.Interventions aiming to improve the delivery of oral hygiene care should target health professional beliefs about their capabilities using strategies such as behavioural practice.Resources specific to oral hygiene care for more complex patients, including suctioning toothbrushes, should be readily accessible for health professional use.Clinical guidelines and policies on oral hygiene care should include detail about training content, assessments tools and how to adapt information for patients with complex impairments.
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Oral Hygiene , Stroke , Humans , Health Personnel , Attitude of Health Personnel , Focus GroupsABSTRACT
BACKGROUND: This study explored the oral health promotion practices of Australian community mental health professionals working with people living with severe mental illness (SMI). METHODS: An anonymous cross-sectional web-based survey was distributed to all Community Rehabilitation and Support Workers (CRSWs) working at Neami National (n = 471), an Australian community mental health service. The validated questionnaire assessed participants' self-rated oral health knowledge and confidence (7 questions); their perceived barriers (9 questions) and attitudes (5 questions) to oral health promotion; and their oral health promotion practices (7 questions). Differences in responses between groups were analysed using Chi-square, Fisher's exact and Mann-Whitney U tests. Logistic Regression Analysis served to explore the probability of providing oral health support to mental health consumers. RESULTS: A total of 141 CRSWs were included in this study, achieving a response rate of 30 percent. Roughly two-fifths (39.0%) of participants had oral health training in the previous 12-months. The majority of CRSWs (89.3%) believed ('Agreed' or 'Strongly agreed') that mental health support workers have a role to play in promoting oral health. However, less than half (44.0%) of CRSWs practiced oral health promotion activities when working with mental health consumers. When asked about barriers to promoting oral health, 'lack of consumer interest' was the most prevalent issue. CRSWs who had oral health training were over three-times (OR 3.5, 95% CI 1.25-9.83, p = 0.017) more likely to provide oral health support. Results showed the provision of oral health support was most strongly associated with self-rated knowledge and confidence (OR 4.089, 95% CI 1.629-10.263, p = 0.003) and attitudes to oral health promotion (OR 3.906, 95% CI 1.77-8.65, p = 0.001). CONCLUSION: The results of this study suggest that mental health support workers who have more positive attitudes to oral health promotion and who have higher self-rated oral health knowledge and confidence are more likely to provide oral health support in their professional role. Training for community mental health professionals is essential to build confidence and skills to promote oral health for mental health consumers.
Subject(s)
Health Promotion , Oral Health , Attitude of Health Personnel , Australia , Cross-Sectional Studies , Humans , Internet , Mental Health , Surveys and QuestionnairesABSTRACT
BACKGROUND: To evaluate oral cancer-related screening practices of Oral Health Professionals (OHPs - dentists, dental hygienists, dental therapists, and oral health therapists) practising in Victoria, Australia. METHODS: A 36-item survey was distributed to 3343 OHPs. Items included socio-demographic and work-related characteristics; self-assessed knowledge of oral cancer; perceived level of confidence in discussing oral health behaviors with patients; oral cancer screening practices; and self-evaluated need for additional training on screening procedures for oral cancer. RESULTS: A total of 380 OHPs responded this survey, achieving an overall response rate of 9.4%. Forty-five were excluded from further analysis. Of these 335 OHP, 72% were dentists; (n = 241); either GDP or Dental Specialists; 13.7% (n = 46) were dental hygienists; 12.2% (n = 41) were oral health therapists, and the remaining 2.1% (n = 7) were dental therapists. While the majority (95.2%) agreed that oral cancer screening should be routinely performed, in actual practice around half (51.4%) screened all their patients. Another 12.8% "Very rarely" conducted screening examinations. The probability of routinely conducting an oral cancer screening was explored utilising Logistic Regression Analysis. Four variables remained statistically significant (p < 0.0001). Results indicate that the likelihood of conducting an oral cancer screening rose with increasing levels of OHPs' confidence in oral cancer-related knowledge (OR = 1.35; 95% CI: 1.09-1.67) and with higher levels of confidence in discussing oral hygiene practices with patients (OR = 1.25; 95% CI: 1.03-1.52). Results also showed that dental specialists were less likely to perform oral cancer screening examinations compared with other OHPs (OR = 0.18; 95% CI: 0.07-0.52) and the likelihood of performing an oral cancer screening decreased when the "patient complained of a problem" (OR = 0.21; 95% CI: 0.10-0.44). CONCLUSION: Only half the study sample performed oral cancer screening examinations for all of their patients. This study provides evidence of the need for further oral cancer-related education and screening training for OHPs, which is vital to enhance oral cancer prevention and early detection.