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Table 2 Association between breastfeeding at four months of age and neighbourhood household purchasing power, without and with adjustments for individual-level variables

From: Influence of neighbourhood purchasing power on breastfeeding at four months of age: a Swedish population-based cohort study

Explanatory variable Neighbourhood-level without adjustments Neighbourhood-level with adjustments
 Category OR (95% CI) OR (95% CI)
Neighbourhood purchasing power *   
 < 10 1.00 (reference) 1.00 (reference)
 10–19.9 1.21 (0.87-1.70) 1.05 (0.74-1.48)
 20–29.9 1.51 (1.11-2.05) 1.09 (0.79-1.52)
 30+ 2.14 (1.45-3.16) 1.63 (1.07-2.46)
p-value for trend 0.00004 0.052
Maternal age (yrs) -  
 ≤ 20   2.49 (1.24-4.99)
 21+   1.00 (reference)
Maternal smoking -  
 No   1.00 (reference)
 Yes   2.57 (1.74-3.80)
Maternal and paternal education -  
 Both post-secondary   1.00 (reference)
 One post-secondary   1.44 (1.09-1.92)
 None post-secondary   2.07 (1.58-2.73)
  1. *Proportion (%) of families with low neighbourhood household purchasing power (according to Swedish standards; < USD 19 500 neighbourhood household purchasing power) among all resident families with at least one child (up to 19 years old) in a neighbourhood area (parish). Neighbourhood household purchasing power was defined as total family disposable income adjusted for the composition of the family (number of adults and children).
  2. Cochran-Armitage trend test (two-sided p-value).
  3. Not included.