From: The association between nutritive, non-nutritive sucking habits and primary dental occlusion
 |  | Daily pacifier vs non daily pacifier | Daily thumb/digit sucking vs non daily thumb/digit sucking | |||||
---|---|---|---|---|---|---|---|---|
n | % | OR | 95% CI | p-value | OR | 95% CI | p-value | |
Duration of breastfeeding | 0.000* | Â | 0.143 | |||||
  > 6 months | 246 | 23.8 | 0.412 | 0.259–0.655 | 0.000* | 0.599 | 0.318-1.128 | 0.112 |
 0-6 months | 471 | 45.6 | 0.840 | 0.598–1.180 | 0.134 | 1.042 | 0.645–1.683 | 0.867 |
 Never | 317 | 30.7 | 1 | – | – | 1 | – | – |