Table 1
Maternal coffee consumption during pregnancy and other sociodemographic and lifestyle factors and rate of stillbirth and infant death, Aarhus, Denmark, 1989-96
| No of women | Coffee consumption* | No of stillbirths/1000 | No of infant deaths/1000 live births† | |
|---|---|---|---|---|
| Coffee (cups/day): | ||||
| 0 | 7 878 | — | 31 (3.9) | 34 (4.3) |
| 1-3 | 6 362 | — | 17 (2.7) | 27 (4.3) |
| 4-7 | 3 288 | — | 23 (7.0) | 4 (1.2) |
| ≥8 | 950 | — | 11 (11.6) | 9 (9.6) |
| Cigarettes/day: | ||||
| 0 | 13 051 | 15 | 45 (3.4) | 41 (3.2) |
| 1-9 | 2 286 | 34 | 14 (6.1) | 14 (6.2) |
| ≥10 | 2 682 | 54 | 22 (8.2) | 14 (5.3) |
| Missing data | 459 | 18 | 1 (2.2) | 5 (10.9) |
| Alcohol intake during pregnancy (drinks/week): | ||||
| <1 | 12 205 | 19 | 47 (3.9) | 48 (3.9) |
| 1-4 | 5 503 | 29 | 29 (5.3) | 22 (4.0) |
| ≥5 | 415 | 47 | 6 (14.5) | 2 (4.9) |
| Missing | 355 | 22 | 0 | 2 (5.6) |
| Parity: | ||||
| Primiparous | 9 674 | 18 | 47 (4.9) | 43 (4.5) |
| Multiparous | 8 804 | 28 | 35 (4.0) | 31 (3.5) |
| Maternal age (years): | ||||
| 15-24 | 2 809 | 16 | 10 (3.6) | 13 (4.6) |
| 25-29 | 7 649 | 19 | 35 (4.6) | 28 (3.7) |
| 30-50 | 8 020 | 29 | 37 (4.6) | 33 (4.1) |
| Marital status: | ||||
| Cohabiting | 17 555 | 23 | 79 (4.5) | 69 (3.9) |
| Single | 797 | 29 | 3 (3.8) | 5 (6.3) |
| Missing | 126 | 30 | 0 | 0 |
| Years of education: | ||||
| 7-10 | 7 487 | 29 | 32 (4.3) | 31 (4.2) |
| ≥11 | 10 520 | 19 | 45 (4.3) | 42 (4.0) |
| Missing | 471 | 17 | 5 (10.6) | 1 (2.1) |
| Employment status during pregnancy: | ||||
| Working | 11 976 | 25 | 54 (4.5) | 47 (3.9) |
| Unemployed | 3 833 | 23 | 19 (5.0) | 19 (5.0) |
| Student | 1 890 | 11 | 7 (3.7) | 6 (3.2) |
| Missing | 779 | 23 | 2 (2.6) | 2 (2.6) |
| Maternal body mass index (kg/m2) before pregnancy: | ||||
| lt;18.5 | 1 289 | 24 | 6 (4.7) | 6 (4.7) |
| 18.5-24.9 | 14 052 | 23 | 59 (4.2) | 52 (3.7) |
| 25.0-29.9 | 1 895 | 23 | 9 (4.7) | 8 (4.2) |
| ≥30 | 689 | 25 | 8 (11.6) | 8 (11.7) |
| Missing | 533 | 25 | 0 | 0 |
