Table 3.

Association between baseline total IQ^a score and depressive symptoms (SMFQ scores) by pubertal development (Tanner stage) at ages 11, 13 and 14 years^b

IQ, Intelligence quotient; SMFQ, Short Mood and Feelings Questionnaire; SCR, symptom count ratio exp(β); CI, confidence interval.

^aMeasured in standard deviations.

^bPubertal measures corresponding at age 17 years are not available yet.

^cConditional estimates are reported for Tanner stages 1 to 5, respectively, based on the estimated pubertal stage and pubertal stage–IQ interaction effect in multi-level analysis.

^dCrude association.

^eAdjusted for maternal education, parental social class, housing tenure, single parent family status, family history of psychiatric disorders and general mental health at age 8 years.