Association between pelvic floor disorders and bone mineral density: Findings from the HUNT study.

OBJECTIVES: To examine the association between pelvic floor disorders (pelvic organ prolapse, urinary incontinence and anal incontinence) and bone mineral density (BMD). STUDY DESIGN: A cross-sectional study of 6809 women who participated in the third survey of the population-based Norwegian HUNT study was undertaken. BMD was measured by dual-energy X-ray absorptiometry. Information on BMD and self-reported pelvic floor disorders from the HUNT study was linked with hospital-derived data on diagnosis and surgical treatment of pelvic floor disorders. BMD was categorized according to the World Health Organization criteria (normal, osteopenia and osteoporosis). Multi-variate logistic regression models were used to estimate odds ratios (OR) with 95% confidence intervals (CI) for the association between pelvic floor disorders and BMD. RESULTS: Women with a hospital diagnosis of stress urinary incontinence (SUI) were less likely to have osteopenia (OR 0.66, 95% CI 0.50-0.87) or osteoporosis (OR 0.66, 95% CI 0.34-1.30) compared with women without a diagnosis of SUI. In women with self-reported information on pelvic floor disorders, women with a history of SUI had lower odds for osteopenia (OR 0.88, 95% CI 0.75-1.02) or osteoporosis (OR 0.69, 95% CI 0.46-1.01), while no association was found between anal incontinence, self-reported surgery for pelvic organ prolapse, and osteopenia or osteoporosis. CONCLUSION: Pelvic organ prolapse was not associated with BMD. The reasons underlying the observed association between SUI and BMD require further investigation.

Spirometric phenotypes from early childhood to young adulthood: a Chronic Airway Disease Early Stratification study.

BACKGROUND: The prevalences of obstructive and restrictive spirometric phenotypes, and their relation to early-life risk factors from childhood to young adulthood remain poorly understood. The aim was to explore these phenotypes and associations with well-known respiratory risk factors across ages and populations in European cohorts. METHODS: We studied 49 334 participants from 14 population-based cohorts in different age groups (≤10, >10-15, >15-20, >20-25 years, and overall, 5-25 years). The obstructive phenotype was defined as forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) z-score less than the lower limit of normal (LLN), whereas the restrictive phenotype was defined as FEV1/FVC z-score ≥LLN, and FVC z-score