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Table 3 Unadjusted mean SDQ scores for the B and K cohort children, by presence of elevated psychological distress in mothers and fathers

From: A three generation study of the mental health relationships between grandparents, parents and children

Elevated psychological distress in mother or father N (%) Mean SDQ 95% CI Test statistic p-value
B cohort (4–5 Years)
Mothers No 3212 8.1 8.0–8.3 t(398.4) = 10.0 <.001
  Yes 334 11.4 10.8–12.0   
Fathers No 2349 7.9 7.7–8.1 t(254.3) = 4.8 <.001
  Yes 217 9.8 9.0–10.6   
K cohort (8–9 Years)
Mothers No 3039 7.2 7.0–7.4 t(531.0) = 12.0 <.001
  Yes 440 11.2 10.7–11.7   
Fathers No 2269 7.0 6.8–7.2 t(316.0) = 5.9 <.001
  Yes 267 9.6 8.8–10.4   
Total
Mothers No 6251 (89.0) 7.7 7.5–7.8 t(926.9) = 15.3 <.001
  Yes 774 (11.0) 11.3 10.9–11.7   
Fathers No 4618 (90.5) 7.5 7.3–7.6 t(570.2) = 7.4 <.001
  Yes 484 (9.5) 9.7 9.1–10.3   
  1. T-test assumes variances are unequal.