The mean age of survivors in the study was 35 years (age range not reported) and the controls' mean age was 31.7 years (age range not reported).
Among the cases, mean age was 58.6 ± 8.5 years and 85% were male; among the controls, mean age of controls was 57.7 ± 12.1 years, and 84% were male.
Meta-regression was employed to explore the potential sources of heterogeneity including publication date, ethnicity, source of controls, mean age of control and case group, and sex.
Twenty-two withn with fibromyalgia (mean age 45 years, range 29 63), and 14 female controls (mean age 43 years, range 30 65) accepted and were included.
Eighteen OA controls (mean age 63.8 years (range 30 89), 66.7 % female) and 16 COPD controls (mean age 66.7 years (range 49 87), 43.4 % female) declined to participate.
Participants included 50 VP children (mean age = 7.29 years) and 39 term peer controls (mean age = 7.28 years).
Each equation also contains age controls (mean immigrant age, mean native age), skill controls (share of native population with degree, with completed school, still in education) and a full set of region/year, occupation/year and region/occupation interaction dummies.
Data were compared with an age-, sex- and education-matched control group (n=9, mean age 27.3 years).
Twenty patients with MLD (mean age 13.7 years, range 2 35) and 20 controls (mean age 13.9 years, range 2 40) were included.
Thirty patients with JIA and 20 healthy age-matched controls (mean age ± SD, 11.3 ± 2.4 versus 11.0 ± 2.3, resp.; P > 0.05) were included.
