Table 1 Characteristics of all eligible pregnancies; pregnancies where address at booking and delivery known (included in analyses as non movers and movers); and pregnancies where address at booking and/or delivery not known (not included in the analyses).
From: Residential mobility during pregnancy in the north of England
Variable | All eligible pregnancies | Pregnancies where address at booking and delivery known (n = 7 919) | Address at booking or delivery not known | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
(n = 11 559) | Non movers and movers (n = 7 919) | Non movers (n = 7 214) | Movers (n = 705) | (n = 3 640) | ||||||
N | Mean (SD) | N | Mean (SD) | N | Mean (SD) | N | Mean (SD) | N | Mean (SD) | |
Maternal age at delivery | 11269 | 27.1 (5.9) | 7746 | 27.2 (6.0) | 7048 | 27.3 (6.0) | 698 | 25.4 (6.0) | 3523 | 26.8 (5.6) |
Gestational age at delivery | 11559 | 37.9 (3.4) | 7919 | 37.8 (3.4) | 7214 | 37.8 (3.5) | 705 | 37.6 (3.4) | 3640 | 38.1 (3.2) |
IMD* at booking | 11449 | 33.9 (18.4) | 7878 | 34.1 (18.3) | 7178 | 33.7 (18.2) | 700 | 38.3 (18.4) | 3571 | 33.5 (18.5) |
TDS** at booking | 11451 | 3.2 (3.9) | 7857 | 3.2 (3.9) | 7160 | 3.2 (3.9) | 697 | 3.9 (4.0) | 3594 | 3.1 (3.9) |