In utero acetaminophen exposure and child neurodevelopmental outcomes: Systematic review and meta-analysis.

BACKGROUND: Acetaminophen is a frequently used analgesic for pain and fever. There have been reports of adverse neurodevelopmental outcomes associated with in utero acetaminophen exposure. However, it is unclear whether this association is related directly to acetaminophen use, or the reasons for use. OBJECTIVES: To summarise the literature on the association between in utero acetaminophen exposure and child neurodevelopmental outcomes, and assess the extent to which the association is due to confounding by indication. DATA SOURCES: OVID for Medline, Embase, and PsycINFO, and EBSCO for CINAHL, from inception to August 18, 2022. STUDY SELECTION AND DATA EXTRACTION: We searched for peer-reviewed, English-language studies on in utero acetaminophen exposure and child neurodevelopmental outcomes. Data were extracted using a standardised form created a priori, and quality was assessed using the Systematic Assessment of Quality in Observational Research. SYNTHESIS: We generated pooled risk ratios (RR) for outcomes examined by ≥3 studies using random-effects models; outcomes that could not be meta-analysed were narratively summarised following Synthesis Without Meta-Analysis guidelines. RESULTS: Twenty-two studies including 23 cohorts were eligible (n = 367,775 total participants; median: 51.7% with acetaminophen exposure). Studies were primarily prospective cohort studies from Europe and the US, with attention deficit/hyperactivity disorder (ADHD) being the most common outcome. Quality assessments resulted in 13.6% of studies being classified as high, 59.1% as medium, 22.7% as low, and 4.5% as very low quality. In utero acetaminophen exposure was associated with an elevated risk of ADHD (unadjusted pooled RR 1.32, 95% confidence interval [CI] 1.20, 1.44; I2  = 47%, n = 7 studies), with little difference after adjusting for confounders, including indications for acetaminophen use (adjusted pooled RR 1.34, 95% CI 1.15, 1.55; I2  = 50%, n = 4 studies). CONCLUSIONS: Confounding by indication did not explain the association between in utero acetaminophen exposure and child ADHD. Further, high-quality research is needed on this and other neurodevelopmental outcomes.

A cross-sectional study of organized activity participation and emotional wellbeing among non-immigrant and immigrant-origin children in British Columbia, Canada.

Organized activity participation has been linked to children's emotional wellbeing. However, a scarcity of literature considers the role of immigrant background. This study's primary objective was to measure the association between organized activity participation and emotional wellbeing among a population-based sample of Grade 7 children in British Columbia, Canada. We also examined whether this relationship depended on immigration background. Our sample included 14,406 children (47.8% female; mean age = 12.0 years). 9,393 (65.2%) children were of non-immigrant origin (48.9% female; mean age = 12.1 years). 5,013 children (34.8%) were of immigrant origin (45.8% female; mean age = 12.0 years; 40.8% first-generation). Participants completed the Middle Years Development Instrument, a self-report survey measuring children's wellbeing and assets. We used odds ratios and the χ2 test to compare the organized activity participation of non-immigrant and immigrant-origin children. We used multiple linear regression to measure associations between participation and indicators of emotional wellbeing and assessed whether associations varied based on immigrant background, controlling for demographic factors and peer belonging. Participation in any activity was similar among non-immigrant and immigrant-origin children (OR1st-gen=1.06, p=0.37; OR2nd-gen=0.97, p=0.62). Immigrant generation status modified the relationship between participation and emotional wellbeing (χSWL 2=3.69, p=0.03; χDep 2=12.31, p<0.01). Beneficial associations between participation and both life satisfaction and depressive symptoms were observed among non-immigrant children only, although associations were small. We conclude that immigrant background modestly modified the association between organized activity participation and emotional wellbeing.

Measuring the impact of delayed access to elective cholecystectomy through patient's cost-utility: an observational cohort study.

BACKGROUND: Deferral of surgeries due to COVID-19 has negatively affected access to elective surgery and may have deleterious consequences for patient's health. Delays in access to elective surgery are not uniform in their impact on patients with different attributes. The objective of this study is to measure the change in patient's cost utility due to delayed elective cholecystectomy. METHODS: This study is based on retrospective analysis of a longitudinal sample of participants who have had elective cholecystectomy and completed the EQ-5D(3L) measuring health status preoperatively and postoperatively. Emergent cases were excluded. Patients younger than 19 years of age, unable to communicate in English or residing in a long-term care facility were ineligible. Quality-adjusted life years attributable to cholecystectomy were calculated by comparing health state utility values between the pre- and postoperative time points. The loss in quality-adjusted life years due to delayed access was calculated under four assumed scenarios regarding the length of the delay. The mean cost per quality-adjusted life years are shown for the overall sample and by sex and age categories. RESULTS: Among the 646 eligible patients, 30.1% of participants (N = 195) completed their preoperative and postoperative EQ-5D(3L). A delay of 12 months resulted in a mean loss of 6.4%, or 0.117, of the quality-adjusted life years expected without the delay. Among patients older than 70 years of age, a 12-month delay in their surgery corresponded with a 25.1% increase in the cost per quality-adjusted life years, from $10 758 to $13 463. CONCLUSIONS: There is a need to focus on minimizing loss of quality of life for patients affected by delayed surgeries. Faced with equal delayed access to elective surgery, triage may need to prioritize older patients to maximize their health over their remaining life years.

Effect of Patient Demographics on Minimally Important Difference of Ankle Osteoarthritis Scale Among End-Stage Ankle Arthritis Patients.

BACKGROUND: Ankle replacement and ankle arthrodesis are standard treatments for treating end-stage ankle arthritis when conservative treatment fails. Comparing patient-reported outcome scores to the instrument's minimal important difference (MID) helps physicians and researchers infer whether a meaningful change in health from the patient's perspective has occurred following treatment. The objective of this study was to estimate the MID of the Ankle Osteoarthritis Scale among a cohort of operatively treated end-stage ankle arthritis patients undergoing ankle replacement or arthrodesis. METHODS: A survey package including the Ankle Osteoarthritis Scale was completed by participants preoperatively and 2 years postoperatively. Distribution and anchor-based approaches to calculating the MID were used to estimate the MID of the Ankle Osteoarthritis Scale and its 2 domains. The distribution-based approaches used were the small and medium effect size methods, while the mean absolute change method and linear regression method were the anchor-based approaches. Bootstrap sampling was used to obtain the variance of MID estimates. The MID was estimated for sex, age, operative, and baseline health subgroups. The cohort comprised 283 participants, totaling 298 ankles. RESULTS: The MID did not vary with sex or operative procedure. Age-based differences in MID values may exist for the Ankle Osteoarthritis Scale total score, and MID values were generally smallest among the oldest patients. Patients with the best and worst ankle-related health preoperatively had higher MID values than patients reporting mid-range Ankle Osteoarthritis Scale values preoperatively. CONCLUSION: The best estimate of the MID of the Ankle Osteoarthritis Scale total score is 5.81. Our findings indicate that the MID of the Ankle Osteoarthritis Scale may not vary by sex or operative subgroups but likely varies by age and preoperative Ankle Osteoarthritis Scale score. LEVEL OF EVIDENCE: Level II, prospective comparative study.

The minimally important difference of the Gastrointestinal Quality of Life Index for symptomatic gallstone surgery.

INTRODUCTION: The Gastrointestinal Quality of Life Index (GQLI) is used to measure domains of health and symptoms among people with gastrointestinal disorders. The objective of this study is to calculate the smallest change in the GQLI that is perceived by patients as meaningful among a sample of English-speaking adult patients undergoing elective laparoscopic cholecystectomy for treatment of symptomatic gallbladder disease. MATERIALS AND METHODS: The study is based on retrospective analyses of a sample of participants completing the GQLI and the EQ-5D(3L) preoperatively and six months postoperatively in Vancouver, Canada. Patients are excluded if they are less than 19 years of age, cannot communicate in English, or reside in a long-term care facility. The MID is calculated for the GQLI's domains using distribution and anchor-based methods. RESULTS: Among eligible patients, the participation rate was 51%. The estimated MID for the overall GQLI value ranged between 4.32 and 11.44. There were no statistically significant differences in the GQLI's MID values between sexes or age subgroups. There were statistically significant differences in the GQLI's MID values by baseline health status. DISCUSSION: This study should provide some comfort that the MID values used in discussing change in health and symptoms with elective cholecystectomy patients are robust to sex. Although the sample size may have been inadequate for age-based analyses, the study found large differences in MID values between age subgroups. Statistically significant differences in MID values based on preoperative health supports reporting MID values separately by baseline value. Further research should explore whether age-based differences in MID values exist using larger samples.