Determinants Of The Timing Of Labour Force Transitions Among Ever-married, Ever-worked, Women In Canada

This thesis presents a critique of two general theoretical approaches to the study of growth in female work attachment: the structural coercion approach and the voluntarist approach. Given the common practice among those who subscribe to the structural coercion tradition to oversimplify patterns of women\u27s work, one hypothesis predicts that factors which impact positively (or negatively) on a woman\u27s probability of entry into the work force may exert the same impact on her probability of leaving. Secondly, many structural coercionists fail to make a unique prediction of the determinants of change in attachment. In contrast, voluntarists identify the growth of tastes for market work as a key determinant. As a result, it is hypothesized that the growth in work attachment on the part of recent birth cohorts is less responsive to demographic and economic constraints and more responsive to emerging tastes for market work.;Both hypotheses are tested on work history data contained in the 1984 Canadian Fertility Survey. Using a Weibull accelerated failure time model, the rate at which ever-married women leave spells of employment and non-employment is modelled as a function of a set of demographic, economic and taste influences. To facilitate a study of trends in behaviour, this process is repeated for three separate birth cohorts.;In support of the first hypothesis, results indicated that a number of traditional constraints which have prevented women in the past from entering the labour force such as husband\u27s income and number of children less than age six, operated to discourage them from leaving. In contrast, higher education, which has served to facilitate entry into employment, resulted in a high rate of exit.;In terms of the second hypothesis, results were mixed. Demographic predictors such as child status and age gained strength among recent cohorts for each of the three employment transitions under consideration. However, in terms of leaving employment, the influence of marital status on work attachment diminished. Education, as a measure of tastes for market work, increased in strength among recent birth cohorts.;It is concluded that future attempts at modelling female work attachment should be firmly grounded on a more comprehensive theoretical approach which gives equal weight to demographic, economic and taste influences

Maternal Factors and the Emotional and Behavioural Functioning of Adolescents With Chronic Health Conditions

Purpose: This study investigated the association between mothers’ mental health and education and the emotional and behavioural functioning of adolescents with chronic health conditions over time. Methods: Data were drawn from an ongoing study. Study participants (N¼363) were recruited through eight children’s rehabilitation centres. Logistic regression models were estimated. Results: There were significantly reduced odds that girls would display clinical signs of hyperactivity/inattention one year later compared to boys when a maternal mental health condition was present (OR¼0.10; p50.01). Where low maternal education was present, girls were more likely to display peer relationship problems one year later (OR¼3.72; p50.01). For both genders, having a mother with less than a high school education was also associated with conduct problems one year later (OR¼2.89; p50.01). Conclusions: Findings support a link between maternal factors and emotional and behavioural functioning in adolescents with chronic conditions. A holistic and family-centred approach to assessment and service delivery is indicated

Three-year Trajectories of Global Perceived Quality of Life for Youth With Chronic Health Conditions

Purpose Objectives of this longitudinal study were to examine 3-year trajectories of global perceived quality of life (QOL) for youth with chronic health conditions, as obtained from youth and parent reports, and to identify personal and environmental factors associated with the trajectory groups for each perspective. Methods Youth with various chronic conditions aged 11–17 years and one of their parents were recruited from eight children’s treatment centers. Latent class growth analysis was used to investigate perceived QOL trajectories (separately for youth and parent perspectives) over a 3-year period (four data collection time points spaced 12 months apart). Multinomial logistic regression was employed to identify factors associated with these trajectories. Results A total of 439 youth and one of their parents participated at baseline, and 302 (69 %) of those youth/parent dyads completed all four data collection time points. Two QOL trajectories were identified for the youth analysis: ‘high and stable’ (85.7 %) and ‘moderate/low and stable’ (14.3 %), while three trajectories were found for the parent analysis: ‘high and stable’ (35.7 %), ‘moderate and stable’ (46.6 %), and ‘moderate/low and stable’ (17.7 %). Relative to the ‘high and stable’ groups, youth with more reported pain/other physical symptoms, emotional symptoms, and home/community barriers were more likely to be in the ‘moderate and stable’ or ‘moderate/low and stable’ groups. Also, youth with higher reported self-determination, spirituality, family social support, family functioning, school productivity/engagement, and school belongingness/safety were less likely to be in the ‘moderate and stable’ or ‘moderate/low and stable’ groups, compared to the ‘high and stable’ groups. Conclusion Findings suggest that youth with chronic conditions experience stable global perceived QOL across time, but that some individuals maintain stability at moderate to moderate/low levels which is related to ongoing personal and environmental influences. Potential benefits of universal strategies and programs to safeguard resilience for all youth and targeted interventions to optimize certain youths’ global perceived QOL are indicated

An evaluation of the measurement properties of the Mentor Self-Efficacy Scale among participants in Big Brothers Big Sisters of Canada Community Mentoring Programs

The measurement properties of a newly developed instrument, Mentor Self-Efficacy Scale, were examined among 249 Big Brothers Big Sisters (BBBS) mentor, child, and parent triads. The unidimensional scale demonstrated acceptable reliability (α = 0.81) and convergent validity, with mentor self-efficacy (MSE) correlating with mentor reported global (r = 0.28, p<0.001) and engagement (r = 0.44, p<0.001) mentoring relationship quality (MRQ). The scale also yielded acceptable predictive validity, with MSE predicting mentor reported engagement MRQ (β = 0.28, p = 0.001). Results will contribute to future research using the scale to augment BBBS policies

Evaluating an In-School Drug Prevention Program for At-Risk Youth

This study assessed an in-school program aimed at preventing or reducing drug use and other deviant behavior in a sample of 167 at-risk youth in their transition years. Over 10 weeks, 17 one-hour sessions were offered to youth who were identified using a self-report questionnaire (at 9 schools with 12 control sites in Ontario, Canada). Repeated measures analysis of covariance was used to assess program impact at posttest and six-month followup. Program participants, compared with the control group, reported less frequent drinking

ICF-based Functional Components and Contextual Factors as Correlates of Perceived Quality of Life for Youth With Chronic Conditions

Purpose: To explore International Classification of Functioning, Disability and Health (ICF)-based functional components and contextual factors associated with perceived quality of life (QOL) for youth with chronic conditions from the perspective of youth and parents. Method: Baseline data were obtained from a longitudinal study examining predictors of changes in perceived QOL for youth with chronic conditions. 439 youth aged 11–17 (and one of their parents) completed a questionnaire. Standardized tools were used to measure youth functioning, contextual factors and perceived QOL. Multivariate linear regression analyses, controlling for socio-demographic and health information, were conducted to explore correlations among youth functioning/contextual factors and youth and parent perceptions of youth QOL. Results: Significant (p0.05) negative correlates with both youth and parent perceptions of youth QOL included pain/other physical symptoms and emotional symptoms. Significant factors positively correlated with youth and parent perceptions of youth QOL included school productivity and spirituality. Other significant positive correlates of youth perspectives were family social support and school belongingness/safety. Family functioning was positively correlated, and youth social anxiety and environmental barriers were negatively correlated, with parent perceptions of youth QOL. Conclusions: This study provides preliminary evidence of factors upon which services aimed at improving perceived QOL of youth with chronic conditions could be based

Comparison of air displacement plethysmography to hydrostatic weighing for estimating total body density in children

BACKGROUND: The purpose of this study was to examine the accuracy of total body density and percent body fat (% fat) using air displacement plethysmography (ADP) and hydrostatic weighing (HW) in children. METHODS: Sixty-six male and female subjects (40 males: 12.4 ± 1.3 yrs, 47.4 ± 14.8 kg, 155.4 ± 11.9 cm, 19.3 ± 4.1 kg/m(2); 26 females: 12.0 ± 1.9 yrs, 41.4 ± 7.7 kg, 152.1 ± 8.9 cm, 17.7 ± 1.7 kg/m(2)) were tested using ADP and HW with ADP always preceding HW. Accuracy, precision, and bias were examined in ADP with HW serving as the criterion method. Lohman's equations that are child specific for age and gender were used to convert body density to % fat. Regression analysis determined the accuracy of ADP and potential bias between ADP and HW using Bland-Altman analysis. RESULTS: For the entire group (Y = 0.835x + 0.171, R(2 )= 0.84, SEE = 0.007 g/cm(3)) and for the males (Y = 0.837x + 0.174, R(2 )= 0.90, SEE = 0.006 g/cm(3)) the regression between total body density by HW and by ADP significantly deviated from the line of identity. However in females, the regression between total body density by HW and ADP did not significantly deviate from the line of identity (Y = 0.750x + 0.258, R(2 )= 0.55, SEE = 0.008 g/cm(3)). The regression between % fat by HW and ADP for the group (Y = 0.84x + 3.81, R(2 )= 0.83, SEE = 3.35 % fat) and for the males (Y = 0.84x + 3.25, R(2 )= 0.90, SEE = 3.00 % fat) significantly deviated from the line of identity. However, in females the regression between % fat by HW and ADP did not significantly deviate from the line of identity (Y = 0.81x + 5.17, R(2 )= 0.56, SEE = 3.80 % fat). Bland-Altman analysis revealed no bias between HW total body density and ADP total body density for the entire group (R = 0.-22; P = 0.08) or for females (R = 0.02; P = 0.92), however bias existed in males (R = -0.37; P ≤ 0.05). Bland-Altman analysis revealed no bias between HW and ADP % fat for the entire group (R = 0.21; P = 0.10) or in females (R = 0.10; P = 0.57), however bias was indicated for males by a significant correlation (R = 0.36; P ≤ 0.05), with ADP underestimating % fat at lower fat values and overestimating at the higher % fat values. CONCLUSION: A significant difference in total body density and % fat was observed between ADP and HW in children 10–15 years old with a potential gender difference being detected. Upon further investigation it was revealed that the study was inadequately powered, thus we recommend that larger studies that are appropriately powered be conducted to better understand this potential gender difference

Open-label extension of a phase 2 trial of risankizumab in patients with moderate-to-severe Crohn's disease

Background: Risankizumab, an anti-interleukin-23 antibody, was superior to placebo in achieving clinical and endoscopic remission at week 12 in a randomised, phase 2 induction study in patients with moderately to severely active Crohn’s disease. The efficacy and safety of extended intravenous induction and/or subcutaneous maintenance therapy with risankizumab was assessed. Methods: Following 12-week, double-blind, randomised, induction treatment comparing 200 mg or 600 mg intravenous risankizumab to placebo every 4 weeks, patients without deep remission, defined as clinical (Crohn’s Disease Activity Index <150) and endoscopic remission (Crohn’s Disease Endoscopic Index of Severity [CDEIS] ≤4 [≤2 for patients with isolated ileitis]), received open-label 600 mg intravenous risankizumab (every 4 weeks) and patients in deep remission underwent washout until week 26 (Period 2). At week 26, patients in clinical remission received maintenance treatment (Period 3) with 180 mg subcutaneous risankizumab (every 8 weeks). Efficacy endpoints included clinical and endoscopic response and remission at weeks 26 (Period 2) and 52 (Period 3) respectively; safety was assessed through both periods. Study registration: ClinicalTrials.gov, NCT02031276. Findings: In Period 2, 101 patients were treated with 600 mg risankizumab resulting in an increase in clinical remission rates at week 26 versus week 12 for all original designated treatment groups: 55% versus 18%, 59% versus 21%, and 47% versus 26% for placebo, 200, and 600 mg risankizumab, respectively. Of the 62 patients receiving maintenance treatment, 54 completed treatment. At week 52, clinical remission was maintained by 71% of patients; endoscopic remission and response (>50% CDEIS reduction from baseline) was achieved by 35% and 55% of patients, respectively, and 29% of patients achieved deep remission. Risankizumab was well tolerated with no new safety signals. Interpretation: Extended induction treatment with open-label intravenous risankizumab was effective in increasing clinical response and remission rates at week 26. Open-label subcutaneous risankizumab maintained remission till week 52 in most patients who were in clinical remission at week 26. Selective blockade of interleukin-23 warrants further evaluation as treatment for Crohn’s disease.Boehringer Ingelhei

Evolution of Endoscopic Lesions in Steroid-Refractory Acute Severe Ulcerative Colitis Responding to Infliximab or Cyclosporine

BACKGROUND/AIMS: Few data on the evolution of endoscopic findings are available in patients with acute severe ulcerative colitis (ASUC). The aim of this study was to describe this evolution in a prospective cohort. METHODS: Patients admitted for a steroid-refractory ASUC and included in a randomized trial comparing infliximab and cyclosporine were eligible if they achieved steroid-free clinical remission at day 98. Flexible sigmoidoscopies were performed at baseline, days 7, 42 and 98. Ulcerative colitis endoscopic index of severity (UCEIS) and its sub-scores - vascular pattern, bleeding and ulceration/erosion - were post-hoc calculated. Global endoscopic remission was defined by a UCEIS of 0, and partial endoscopic remission by any UCEIS sub-score of 0. RESULTS: Among the 55 patients analyzed (29 infliximab and 26 cyclosporine), 49 (83%) had UCEIS >= 6 at baseline at baseline. Partial endoscopic remission rates were higher for bleeding than for vascular pattern and for ulcerations/erosions at day 7 (20% vs. 4% and 5% (n = 55); p CONCLUSION: In steroid-refractory ASUC patients responding to a second-line medical therapy, endoscopic remission process started with bleeding remission and was not achieved in half the patients at day 98 for vascular pattern. Infliximab provided a higher endoscopic remission rate than cyclosporine at day 98.Peer reviewe