|  |  |  |  | 95% CI for the difference | |
---|---|---|---|---|---|---|
 |  | Control (n = 210) | Intervention (n = 189) | p | Lower | Upper |
Sociodemographic characteristics | ||||||
Age | Mean (s.d.) | 30.2 (5.31) | 31.62 (4.79) | 0.004 | -2.47 | -0.47 |
Aboriginal/Torres Strait Islander | n (%) | 2 (1) | 1 (0.5) | 0.625 | Â | Â |
English spoken at home | n (%) | 198 (94.3) | 186 (98.4) | 0.03 | Â | Â |
Married | n (%) | 148 (70.5) | 135 (71.4) | 0.834 | Â | Â |
Completed post-secondary education | n (%) | 135 (64.3) | 157 (83.1) | <.001 | Â | Â |
Employment ASCO classification *: | Â | Â | Â | Â | Â | Â |
   1 and 2 | n (%) | 78 (37.3) | 111 (59.0) | <. 001 |  |  |
   3 and 4 | n (%) | 35 (16.7) | 31 (16.5) |  |  |  |
   5 and 6 | n (%) | 73 (34.8) | 34 (18.1) |  |  |  |
   7, 8 and 9 | n (%) | 24 (11.5) | 12 (6.4) |  |  |  |
Health and reproductive history | ||||||
Self-rated health good or excellent | n (%) | 184 (87.7) | 177 (93.6) | 0.321 | Â | Â |
Psychiatric history (panic episodes only) | n (%) | 58 (27.6) | 42 (22.2) | 0.401 | Â | Â |
Psychiatric history (other disorders) | n (%) | 16 (7.6) | 25 (13.2) | 0.065 | Â | Â |
More than one previous pregnancy | n (%) | 40 (19.1) | 53 (28) | 0.036 | Â | Â |
Unexpected pregnancy | n (%) | 56 (26.8) | 29 (15.3) | 0.005 | Â | Â |
Conceived by ART+ | n (%) | 18 (8.6) | 17 (9) | 0.893 | Â | Â |
Caesarean birth | n (%) | 69 (32.9) | 59 (31.2) | 0.726 | Â | Â |
Psychological factors | ||||||
Confident on leaving hospital | n (%) | 123 (58.9) | 91 (50.0) | 0.079 | Â | Â |
Can confide in partner | n (%) | 185 (88.5) | 163 (89.6) | 0.742 | Â | Â |
Feels supported by partner | n (%) | 200 (96.2) | 173 (95.1) | 0.596 | Â | Â |
Vulnerable personality style (VPS vulnerability subscale score) | Mean (s.d.) | 12.75 (4.16) | 12.7 (3.96) | 0.904 | -0.75 | 0.85 |
Current mood (EPDS) | Mean (s.d.) | 5.81 (4.01) | 6 (3.75) | 0.646 | -0.96 | 0.59 |
Partner relationship (IBM Care subscale score) | Mean (s.d.) | 33.34 (3.76) | 32.76 (4.12) | 0.149 | -0.21 | 1.36 |
Partner relationship (IBM Control subscale score) | Mean (s.d.) | 4.58 (4.26) | 4.76 (4.75) | 0.694 | -1.08 | 0.72 |
Infants | ||||||
Twins | n (%) | 3 (1.4) | 1 (0.5) | 0.368 | Â | Â |
Female | n (%) | 109 (52.7) | 92 (48.9) | 0.46 | Â | Â |
Birth weight (g) | Mean (s.d.) | 3503.6 (437.5) | 3406.9 (510.4) | 0.054 | -1.76 | 195.30 |
Gestation at birth (weeks) | Mean (s.d.) | 39.86 (1.45) | 39.62 (1.56) | 0.116 | -0.06 | 0.54 |
Infant age at interview (weeks) | Mean (sd) | 4.3 (2.5) | 3.9 (2.2) | 0.19 | -0.17 | 0.81 |
Rating of baby's health Good or Excellent | n (%) | 201 (96.2) | 174 (95.6) | 0.401 | Â | Â |
Currently breastfeeding | n (%) | 163 (78) | 160 (87.9) | 0.01 | Â | Â |
Had breastfeeding problems | n (%) | 50 (23.8) | 46 (24.3) | 0.902 | Â | Â |
Length of time baby cried or fussed in previous 24 hours (hours) | Mean (s.d.) | 2.86 (2.04) | 3.52 (2.04) | 0.005 | -1.11 | -0.2 |