| Hierarchical linear regression | ||||
---|---|---|---|---|---|
Independent Variables | Â | Unstandardised regression coefficient (adjusted) | p | Model R2 | p for change in R2 |
 | Model 1 |  |  | .44 | - |
Language spoken at home: English | Â | Reference | Â | Â | Â |
Other | Â | 0.21 | .007 | Â | Â |
Education: Up to secondary | Â | Reference | Â | Â | Â |
Certificate/Diploma | Â | 0.12 | .119 | Â | Â |
Tertiary | Â | 0.17 | .058 | Â | Â |
Age: 18-25 |  | −0.15 | .093 |  |  |
26-39 | Â | Reference | Â | Â | Â |
40+ | Â | 0.04 | .790 | Â | Â |
Psychiatric history | Â | 0.09 | .183 | Â | Â |
PHQ-9a | Â | 0.27 | .000 | Â | Â |
GAD-7a | Â | 0.21 | .000 | Â | Â |
Vulnerable personality characteristicsa | Â | 0.05 | .000 | Â | Â |
 | Model 2 |  |  | .51 | .000 |
Language spoken at home: English | Â | Reference | Â | Â | Â |
Other | Â | 0.13 | .097 | Â | Â |
Education: Up to secondary | Â | Reference | Â | Â | Â |
Certificate/Diploma | Â | 0.08 | .320 | Â | Â |
Tertiary | Â | 0.14 | .115 | Â | Â |
Age: 18-25 |  | −0.15 | .078 |  |  |
26-39 | Â | Reference | Â | Â | Â |
40+ |  | −0.00 | .990 |  |  |
Psychiatric history | Â | 0.08 | .221 | Â | Â |
PHQ-9a | Â | 0.21 | .000 | Â | Â |
GAD-7a | Â | 0.19 | .000 | Â | Â |
Vulnerable personality characteristics | Â | 0.04 | .000 | Â | Â |
Self-rated health: Fair to good | Â | Reference | Â | Â | Â |
Very or extremely good |  | −0.18 | .018 |  |  |
Feeding method: Only breast milk | Â | Reference | Â | Â | Â |
Formula and/or breast milk |  | −0.05 | .377 |  |  |
Baby crying or fussing: <3Â h | Â | Reference | Â | Â | Â |
≥3 h |  | 0.12 | .046 |  |  |
Confidence in going home from hospital |  | −0.13 | .000 |  |  |
IBM care subscaleb | Â | 0.04 | .236 | Â | Â |
IBM control subscalea | Â | 0.10 | .006 | Â | Â |