From: Relationship between obesity, ethnicity and risk of late stillbirth: a case control study
 | Cases | Controls | Univariable OR 95% CI | |||
---|---|---|---|---|---|---|
 | n = 155 | (%) | n = 310 | (%) |  |  |
Maternal age | Â | Â | Â | Â | Â | Â |
   <20 | 10 | (6.5) | 24 | (7.7) | 0.80 | 0.38-1.71 |
   20-34 | 113 | (72.9) | 216 | (69.7) | 1.00 | - |
   ≥ 35 | 32 | (20.7) | 70 | (22.6) | 0.86 | 0.53-1.42 |
Maternal ethnicity | Â | Â | Â | Â | Â | Â |
   Maori | 19 | (12.3) | 46 | (14.8) | 1.08 | 0.57-2.04 |
   Pacific | 48 | (31.0) | 67 | (21.6) | 1.88 | 1.13-3.13 |
   European | 55 | (35.5) | 139 | (44.8) | 1.00 | - |
   Other | 33 | (21.3) | 58 | (18.7) | 1.46 | 0.85-2.51 |
Country of birth | Â | Â | Â | Â | Â | Â |
   New Zealand | 83 | (53.6) | 168 | (54.2) | 1.00 | - |
   Other | 72 | (46.5) | 142 | (45.8) | 1.03 | 0.69-1.54 |
Marital status | Â | Â | Â | Â | Â | Â |
   Married | 84 | (54.2) | 202 | (65.2) | 1.00 | - |
   Not married | 71 | (45.8) | 108 | (34.8) | 1.60 | 1.07-2.38 |
Deprivation Index | Â | Â | Â | Â | Â | Â |
   1-4 | 91 | (58.7) | 218 | (70.3) | 1.00 | - |
   5 (most deprived) | 64 | (41.3) | 92 | (29.7) | 1.74 | 1.14-2.67 |
School leaving age | Â | Â | Â | Â | Â | Â |
   <17 years | 36 | (23.2) | 56 | (18.1) | 1.37 | 0.85-2.18 |
   ≥17 | 119 | (76.8) | 254 | (81.9) | 1.00 | - |
Employment in last month | Â | Â | Â | Â | Â | Â |
   Paid work | 41 | (26.5) | 118 | (38.1) | 1.00 | - |
   Not in paid work | 114 | (73.6) | 192 | (61.9) | 1.75 | 1.13-2.70 |
Parity | Â | Â | Â | Â | Â | Â |
   0 | 77 | (49.7) | 144 | (46.5) | 1.41 | 0.94-2.13 |
   1-3 | 62 | (40.0) | 156 | (50.9) | 1.00 | - |
   ≥4 | 16 | (10.3) | 10 | (3.2) | 5.13 | 1.99-13.21 |
BMI | Â | Â | Â | Â | Â | Â |
   < 25 | 55 | (35.5) | 156 | (50.3) | 1.00 | - |
   25-29.9 | 39 | (25.2) | 67 | (21.6) | 1.69 | 1.03-2.78 |
   ≥ 30 | 61 | (39.4) | 87 | (28.1) | 2.08 | 1.30-3.33 |
Ethnic specific BMI groups | Â | Â | Â | Â | Â | Â |
   Normal/underweight | 57 | (36.8) | 151 | (48.7) | 1.00 | - |
   Overweight | 44 | (28.4) | 81 | (26.1) | 1.46 | 0.91-2.35 |
   Obese | 54 | (34.8) | 78 | (25.2) | 1.91 | 1.18-3.09 |
Smoking in pregnancy | Â | Â | Â | Â | Â | Â |
   Smoke-free | 80 | (51.6) | 201 | (64.8) | 1.00 |  |
   Passive only | 29 | (18.7) | 43 | (13.9) | 1.67 | 0.99 - 2.83 |
   Smoker | 46 | (29.7) | 66 | (21.3) | 1.78 | 1.11 - 2.85 |
Recreational drugs | Â | Â | Â | Â | Â | Â |
   No drug use | 142 | (91.6) | 298 | (96.1) | 1.00 | - |
   Any drug use | 13 | (8.4) | 12 | (3.9) | 2.35 | 1.02 - 5.42 |
Previous preterm birth | Â | Â | Â | Â | Â | Â |
   Yes | 11 | (7.10) | 15 | (4.84) | 1.52 | 0.67 - 3.43 |
   No | 144 | (92.80) | 295 | (95.16) | 1.00 | - |
Previous small for gestational age | Â | Â | Â | Â | Â | Â |
   Yes | 12 | (7.74) | 15 | (4.84) | 1.60 | 0.75 - 3.42 |
   No | 143 | (92.26) | 295 | (95.16) | 1.00 | - |
Previous stillbirth | Â | Â | Â | Â | Â | Â |
   Yes | 2 | (1.29) | 3 | (0.97) | 1.33 | 0.22 - 7.98 |
   No | 152 | (98.71) | 307 | (99.03) | 1.00 | - |