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Table 2 Association between the duration of breastfeeding and incisal relationship in primary dentition

From: Association of breastfeeding and three-dimensional dental arch relationships in primary dentition

  Crude model Adjusted modela
Variables P-value Class II incisor vs Class I incisor Class III incisor vs Class I incisor P-value Class II incisor vs Class I incisor Class III incisor vs Class I incisor
   OR 95% CI OR 95% CI   OR 95% CI OR 95% CI
Duration of breastfeeding 0.022*      0.013*     
>6 months   0.700 0.479-1.024 1.058 0.629-1.781   0.650 0.438-0.966 1.053 0.604-1.836
0-6 months   0.480 0.302-0.764 1.114 0.630-1.970   0.452 0.277-0.739 1.200 0.657-2.192
Never   1 - 1 -   1 - 1 -
  1. OR, odds ratio; CI, confidence interval.
  2. aAdjusted for background information (age and gender) and related non-nutritive sucking habits (thumb sucking and pacifier use).
  3. *P < 0.05.
  4. Boldface data are variables with P<0.05 or OR (95%CI) <1.