Prevalence of distress disorders in young adulthood by number of developmental periods with somatic complaints.
a) All cohorts. Somatic complaints counted during childhood (9–16 years) and young adulthood (19–26 yrs).
OR = 3.07, CI: 2.21-4.43, p < .001 for persistence term
b) The two youngest cohorts—recruited at ages 9 and 11—only. Somatic complaints counted during late middle childhood (9–13 yrs), adolescence (14–16 yrs), and young adulthood (19–26 yrs).
OR = 2.92, CI: 2.11-4.05, p < .001 for persistence term