Table 1 |
|||
| Background characteristics of the women | |||
| Study group † | Non-study group †† | P* | |
| n (%) | n (%) | ||
| Woman (n) | 995 | 5286 | |
| Age, mean, years (SD) | 30.8(4.503) | 30.0(5.199) | <0.001 |
| min 17.1-max 44.0 | min 14.9-max 49.5 | ||
| Civil status | |||
| Married | 600(60.3) | 2848(53.9) | 0.001 |
| Unmarried | 389(39.1) | 2387(45.2) | |
| Other | 6(0.6) | 51(1.0) | |
| Occupation | |||
| Professional occupation | 165(16.6) | 536(10.1) | <0.001 |
| Service occupation | 85(8.5) | 390(7.4) | |
| Worker | 32(3.2) | 170(3.2) | |
| Other/unknown | 713(71.7) | 4190(79.3) | |
| Number of deliveries | |||
| 0 | 541(54.4) | 2324(44.0) | <0.001 |
| 1 | 306(30.8) | 1877(35.5) | |
| 2 or more | 148(14.9) | 1085(20.5) | |
| Abortions | |||
| Yes | 124(12.5) | 781(14.8) | 0.059 |
| No | 869(85.2) | 4501(85.2) | |
| Gestational age (days) mean (SD) | 278.0(12.966) | 278.0(13.526) | 0.949 |
| Delivery | |||
| Vaginal | 769(77.3) | 4085(77.3) | 0.416 |
| Breech birth | 14(1.4) | 48(0.9) | |
| Vacuum or forceps extraction | 78(7.84) | 458(8.7) | |
| Section | 134(13.5) | 695(13.2) | |
| Baby’s birth weight (g) mean (SD) | 3486.8(550.9) | 3513.1(567.8) | 0.179 |
| min 420-max 5350 | min 230-max 6040 | ||
Information gathered from the Finnish Medical Birth Register.
†) Women who participated in the STEPS-study and had their first visit at a maternity health clinic in the area of Turku University Hospital 1.1.2008–31.5.2009.
††) Women who had their first visit at a maternity health clinic in the area of Turku University Hospital 1.1.2008–31.5.2009, but who were not included in the study group.
*) Used statistical test: Pearson’s Chi-Square and T-test for independent samples.
Tuominen et al. BMC Pregnancy and Childbirth 2012 12:96 doi:10.1186/1471-2393-12-96
