Table 4 Adjusted IRRs (95% CI) of each outcome for each group of mental health condition

Mother

Mental health condition

No mental health condition

Minor

Moderate-severe

Father

No mental health condition

Reference

1.17 (1.17–1.18)

1.18 (1.17–1.19)

Minor

1.06 (1.05–1.07)

1.22 (1.21–1.24)

1.25 (1.23–1.27)

Moderate-severe

1.05 (1.04–1.06)

1.17 (1.15–1.19)

1.18 (1.16–1.20)

Mother

Mental health condition

No mental health condition

Minor

Moderate-severe

Father

No mental health condition

Reference

1.26 (1.25–1.28)

1.39 (1.37–1.41)

Minor

1.15 (1.14–1.17)

1.37 (1.34–1.41)

1.49 (1.45–1.54)

Moderate-severe

1.20 (1.18–1.22)

1.36 (1.31–1.41)

1.44 (1.40–1.49)

Mother

Mental health condition

No mental health condition

Minor

Moderate-severe

Father

No mental health condition

Reference

1.14 (1.11–1.18)

1.36 (1.31–1.41)

Minor

1.14 (1.10–1.19)

1.25 (1.17–1.34)

1.39 (1.27–1.52)

Moderate-severe

1.31 (1.25–1.38)

1.27 (1.15–1.41)

1.35 (1.24–1.47)

Mother

Mental health condition

No mental health condition

Minor

Moderate-severe

Father

No mental health condition

Reference

1.25 (1.24–1.27)

1.39 (1.36–1.41)

Minor

1.11 (1.08–1.13)

1.33 (1.29–1.37)

1.48 (1.43–1.54)

Moderate-severe

1.12 (1.10–1.15)

1.26 (1.21–1.32)

1.41 (1.36–1.47)

Mother

Mental health condition

No mental health condition

Minor

Moderate-severe

Father

No mental health condition

Reference

1.22 (1.19–1.25)

1.29 (1.25–1.33)

Minor

1.07 (1.04–1.11)

1.27 (1.20–1.35)

1.59 (1.47–1.72)

Moderate-severe

1.12 (1.07–1.17)

1.21 (1.10–1.32)

1.47 (1.36–1.59)