Table 3.
Information on smoking, drinking, drug use and outcome of pregnancy*
| Enrolment 1 (N=889)† | Enrolment 2 (N=888)† | Enrolment 3 (N=77)† | χ2 | p-value | |
|---|---|---|---|---|---|
| Drinkers | 567 (63.8) | 524 (59.0) | 42 (54.6) | 5.7 | 0.058 |
| Smokers | 652 (73.7) | 643 (72.3) | 52 (68.4) | 1.16 | >0.05 |
| Cannabis | 129 (15.1) | 85 (9.7) | 9 (12.0) | 11.53 | <0.005 |
| Methamphetamine | 86 (10.1) | 58 (6.6) | 13 (17.3) | 12.71 | <0.005 |
| Preterm deliveries | 139 (15.5) | 157 (17.5) | 19 (24.7) | 4.5 | >0.05 |
| Female infants | 425 (48.0) | 424 (48.0) | 41 (53.3) | 0.05 | >0.05 |
| Miscarriages | 11 (1.23) | 12 (1.34) | 1 (1.30) | 0.04 | >0.05 |
| Terminations of pregnancy | 2 (0.23) | 2 (0.23) | 0 | 0.34 | >0.05 |
| Stillbirths | 21 (2.38) | 12 (1.36) | 3 (3.95) | 3.81 | >0.05 |
| Early neonatal deaths | 5 (0.58) | 6 (0.69) | 1 (1.37) | 0.53 | >0.05 |
| Late neonatal deaths | 0 | 2 (0.23) | 0 | 2.92 | >0.05 |
| Infant deaths in 1st year | 14 (1.63) | 6 (0.7) | 1 (1.39) | 3.41 | >0.05 |
*
Results given as n (%), e.g. for drinkers in enrolment 1: 567/889 = 63.8%, reported as 567 (63.8).
†
The N may sometimes differ slightly in other variables when the specific information was not known.