Table 2 Associations between key study factors and early cessation of exclusive breastfeeding in the postnatal period of infant’s mothers from South Western Sydney and Sydney Local Health Districts in 2014 (N = 17,564)
| Â | Complete case analysis | Multiple imputation analysisa | ||||||
|---|---|---|---|---|---|---|---|---|
Unadjusted OR (95%CI) | P value | Adjusted OR (95%CI)b | P value | Unadjusted OR (95%CI) | P value | Adjusted OR (95%CI)b | P value | |
Early cessation of EBF in early postnatal period | ||||||||
 Maternal age group | ||||||||
  20–39 years | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
   > 40 years | 1.1 (0.9–1.3) | 0.293 | 1.1 (0.9–1.4) | 0.236 | 1.1 (0.9–1.3) | 0.524 | 0.9 (0.7–1.2) | 0.225 |
   < 20 years | 3.1 (2.4–4.1) | <0.001 | 2.7 (1.9–3.8) | <0.001 | 3.4 (2.4–4.7) | <0.001 | 2.9 (2.1–4.1) | <0.001 |
 Socio-economic status | ||||||||
  Low | 1.0 |  | 1.0 |  | 1.00 |  | 1.0 |  |
  Medium | 0.8 (0.6–0.7) | <0.001 | 0.7 (0.6–0.8) | <0.001 | 0.7 (0.6–0.7) | <0.001 | 0.7 (0.6–0.7) | <0.001 |
  High | 0.5 (0.4–0.6) | <0.001 | 0.6 (0.5–0.9) | <0.001 | 0.5 (0.4–0.6) | <0.001 | 0.5 (0.5–0.6) | <0.001 |
 Antenatal depressive symptoms | ||||||||
  EPDS <13 | 1.0 |  | 1.0 |  | 1.00 |  | 1.0 |  |
  EPDS ≥13 | 1.2 (1.0–1.4) | 0.014 | 1.2 (1.1–1.5) | 0.068 | 1.2 (1.1–1.2) | 0.016 | 1.3 (1.1–1.5) | 0.056 |
 Cigarette smoking | ||||||||
  No | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
  Yes | 3.2 (2.8–3.7) | <0.001 | 2.5 (2.1–3.0) | <0.001 | 2.9 (2.5–3.5) | <0.001 | 2.7 (2.3–3.2) | <0.001 |
 Supportive Partner | ||||||||
  Yes | 1.0 |  | 1.0 |  | 1.0 |  | 1.00 |  |
  Unsure | 1.9 (1.3–2.8) | <0.001 | 1.6 (1.1–2.4) | 0.026 | 1.8 (1.2–2.7) | 0.007 | 1.5 (1.0–2.3) | 0.078 |
  No | 1.5 (1.2–2.0) | <0.001 | 1.7 (1.2–2.1) | 0.003 | 1.7 (1.3–2.3) | <0.001 | 1.4 (1.3–1.9) | 0.049 |
 CALD | ||||||||
  No | 1.0 |  |  |  |  |  |  |  |
  Yes | 0.9 (0.8–1.0) | 0.107 | 0.9 (0.8–1.0) | 0.088 | 1.1 (0.9–1.2) | 0.0101 | 0.9 (0.7–1.0) | 0.075 |
 Pre-existing maternal health problems | ||||||||
  No | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
  Yes | 1.1 (1.0.–1.2) | 0.207 | 1.2 (1.1–1.3) | 0.002 | 1.1 (1.1–1.2) | 0.095 | 1.0 (0.9–1.1) | 0.405 |
 Intimate partner violence | ||||||||
  No | 1.0 |  | 1.0 |  | 1.0 |  | 1.0 |  |
  Yes | 1.6 (1.2–2.2) | 0.004 | 1.4 (1.0–2.0) | 0.042 | 1.7 (1.2–2.5) | 0.005 | 1.2 (0.7–1.8) | 0.516 |
 Type of delivery | ||||||||
  Normal vaginal | 1.0 |  |  |  |  |  |  |  |
  Assisted vaginal | 1.1 (1.0–1.2) | 0.119 | 1.3 (1.1–1.5) | <0.001 | 1.0 (0.9–1.1) | 0.898 | 1.1 (0.9–1.2) | 0.426 |
  Caesarean section | 1.5 (1.4–1.6) | <0.001 | 1.5 (1.4–1.7) | <0.001 | 1.6 (1.3–1.6) | <0.001 | 1.5 (1.3–1.6) | <0.001 |