Table 1 Background characteristicsa
Previous stillbirth N = 174c | Previous live birth N = 362c | Previously nulliparous N = 365c | P value | ||
|---|---|---|---|---|---|
Stillbirth vs live birth | Stillbirth vs nulliparous | ||||
Maternal age, mean yrs. (SD)b | 31.18 (4.63) | 31.29 (4.14) | 28.70 (4.45) | 0.789 | < 0.001 |
Married/cohabiting | 168 (97.7) | 356 (98.3) | 345 (95.0) | 0.595 | 0.152 |
Native language other than norwegian | 8 (4.7) | 16 (4.5) | 23 (6.4) | 0.930 | 0.424 |
Smokingd | 32 (18.6) | 46 (12.9) | 70 (19.3) | 0.085 | 0.852 |
BMI ≥ 25 | 77 (45.6) | 125 (35.6) | 100 (28.3) | 0.029 | < 0.001 |
Low educatione | 67 (39.0) | 104 (29.1) | 99 (27.9) | 0.024 | 0.010 |
Low incomef | 50 (29.8) | 124 (34.7) | 93 (26.3) | 0.259 | 0.414 |
Previous miscarriage | 32 (18.4) | 55 (15.2) | 52 (14.2) | 0.347 | 0.215 |
Previous termination of pregnancy | 17 (9.8) | 35 (9.7) | 32 (8.8) | 0.970 | 0.705 |
Co-morbidityb | 26 (14.9) | 43 (11.9) | 47 (12.9) | 0.321 | 0.512 |
Stressful life events | 102 (58.6) | 174 (48.1) | 190 (52.1) | 0.022 | 0.153 |
Inter-pregnancy intervalb < 12 months | 122 (70.5) | ||||
Gestational age at stillbirthb > 30 weeks | 115 (68.0) | ||||