Table 2 Demographic characteristics for significant spatial cluster compared to the remainder of the study area using GEE logistic regression
From: Geospatial analyses to identify clusters of adverse antenatal factors for targeted interventions
|  | Smoking during pregnancy clusters n (%) | 1st antenatal visit at ≥10 weeks clusters n (%) | ||||
|---|---|---|---|---|---|---|
| Â | Clusters | Remainder of the study area | p-value | Clusters | Remainder of the study area | p-value |
| Â | 47,593 | 147,907 | Â | 96,308 | 99,192 | Â |
Smoke during pregnancy | 8,767 (18.6) | 11,768 (8.1) | <0.0001 | 11,703 (12.3) | 8,832 (9.1) | 0.2465 |
1st antenatal visit ≥10 weeks | 36,991 (79.2) | 109,491 (75.1) | 0.0112 | 77,767 (80.8) | 68,715 (71.5) | <0.0001 |
Overseas-born | 19,681 (41.4) | 69,050 (46.7) | 0.5045 | 52,914 (54.9) | 35,817 (36.1) | 0.0623 |
Maternal age (years) | ||||||
  <35 | 40,552 (85.2) | 115,607 (78.2) | <0.0001 | 79,123 (82.2) | 77,036 (77.7) | 0.3988 |
  ≥35 | 7,034 (14.8) | 32,273 (21.8) |  | 17,171 (17.8) | 22,136 (22.3) |  |
Index of Relative Socio-economic Disadvantage | ||||||
  Most disadvantaged | 20,447 (44.0) | 44,094 (30.0) | 0.4621 | 56,621 (56.4) | 10,920 (11.1) | 0.0014 |
  Middle and least disadvantaged | 26,078 (56.1) | 103,000 (70.0) |  | 41,437 (46.6) | 87,641 (88.9) |  |
Plurality | 1,386 (2.9) | 4,500 (3.0) | 0.1162 | 2,748 (2.9) | 3,138 (3.2) | 0.0021 |
Primiparous | 17,616 (37.0) | 65,647 (44.5) | <0.0001 | 40,000 (41.5) | 43,263 (43.8) | 0.8380 |