Table 1

 Effect of the type of feeding and non-nutritive sucking on occlusion in 1099 preschool children

Group of childrenType of occlusionLogistic regression Adjusted OR (95% CI)p value
Altered (%)Normal (%)
NNS+, children with non-nutritive sucking activity for more than 1 year; NNS−, children without non-nutritive sucking.
Bottle feeding188 (41)271 (59)1.28 (0.99 to 1.66)0.0576
Breast feeding205 (32)435 (68)
NNS+312 (42)425 (58)2.43 (1.82 to 3.25)<0.0001
NNS−81 (22)281 (78)