Age-adjusted and multivariable ORs and 95% CIs of depressive symptomatology 1 month after childbirth according to maternal employment status, stratified by perceived level of social support
| Maternal employment status | P value for interaction | ||||||||
| Regular workers | Dispatched workers | Part-time workers | Self-employed workers | Non-employed | Others | ||||
| Depressive symptomatology (EPDS score ≥9) | Lower perceived level of social support: (n=40 917) | No at risk | 13 944 | 811 | 9135 | 1285 | 14 723 | 1019 | 0.18 |
| No of cases | 1484 | 116 | 1109 | 131 | 1831 | 123 | |||
| Age-adjusted OR (95% CI) | 1.00 | 1.40 (1.14 to 1.71)* | 1.15 (1.06 to 1.25)* | 0.98 (0.81 to 1.19) | 1.19 (1.10 to 1.28)* | 1.14 (0.94 to 1.39) | |||
| Multivariable ORs (95% CI)† | 1.00 | 1.18 (0.95 to 1.46) | 1.10 (1.01 to 1.21)* | 0.91 (0.75 to 1.11) | 1.14 (1.05 to 1.24)* | 1.10 (0.89 to 1.35) | |||
| Higher perceived level of social support: (n=35 905) | No at risk | 13 284 | 584 | 6851 | 1155 | 13 146 | 885 | ||
| No of cases | 704 | 31 | 380 | 56 | 707 | 69 | |||
| Age-adjusted OR (95% CI) | 1.00 | 1.00 (0.69 to 1.45) | 1.05 (0.92 to 1.19) | 0.94 (0.71 to 1.24) | 1.02 (0.91 to 1.13) | 1.50 (1.16 to 1.94)* | |||
| Multivariable ORs (95% CI)† | 1.00 | 0.87 (0.59 to 1.27) | 1.03 (0.90 to 1.19) | 0.91 (0.68 to 1.21) | 1.04 (0.92 to 1.18) | 1.42 (1.09 to 1.86)* | |||
| Depressive symptomatology (EPDS score ≥13) | Lower perceived level of social support: (n=40 917) | No at risk | 13 944 | 811 | 9135 | 1285 | 14 723 | 1019 | 0.37 |
| No of cases | 254 | 19 | 222 | 26 | 350 | 19 | |||
| Age-adjusted OR (95% CI) | 1.00 | 1.29 (0.80 to 2.06) | 1.33 (1.11 to 1.60)* | 1.15 (0.77 to 1.73) | 1.30 (1.11 to 1.53)* | 1.01 (0.63 to 1.62) | |||
| Multivariable ORs (95% CI)† | 1.00 | 1.02 (0.63 to 1.65) | 1.24 (1.02 to 1.52)* | 1.05 (0.69 to 1.60) | 1.22 (1.02 to 1.46)* | 0.96 (0.60 to 1.55) | |||
| Higher perceived level of social support: (n=35 905) | No at risk | 13 284 | 584 | 6851 | 1155 | 13 146 | 885 | ||
| No of cases | 94 | 6 | 64 | 6 | 95 | 12 | |||
| Age-adjusted OR (95% CI) | 1.00 | 1.45 (0.63 to 3.32) | 1.31 (0.95 to 1.81) | 0.79 (0.34 to 1.81) | 1.02 (0.77 to 1.36) | 1.89 (1.03 to 3.47)* | |||
| Multivariable ORs (95% CI)† | 1.00 | 1.05 (0.45 to 2.45) | 1.06 (0.75 to 1.49) | 0.65 (0.28 to 1.50) | 0.86 (0.63 to 1.19) | 1.52 (0.82 to 2.82) | |||
*P<0.05.
†Adjusted for age, educational attainment, household equivalent income, parity, living with partner, living with parents, marital status, mental health status and residential area.
EPDS, Edinburgh Postnatal Depression Scale.