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Table 1 Characteristics of the study group

From: Effects of breast-feeding duration, bottle-feeding duration and non-nutritive sucking habits on the occlusal characteristics of primary dentition

variable(n = 734) Number %
Age (years) 4.48 ± 0.84  
  3-4 354 48.2
  4-5 164 22.4
  5-6 216 29.4
Children sex   
  Male 398 54.2
  Female 336 45.8
Level of education   
  Bachelor degree or below 195 26.6
  Masters 199 27.1
  Doctorate 340 46.3
Non-nutritive sucking habits   
  Pacifier sucking 30 4.1
  12-36 months 27 3.7
  >36 months 3 0.4
  Digit sucking 140 19.1
  12-36 months 53 7.2
  >36 months 87 11.9
Duration of breast-feeding   
  Never breastfed 101 13.8
  1-6 months 199 27.1
  >6 months 434 59.1
Duration of bottle-feeding   
  0-6 months 0 0
  6–18 months 305 41.6
  >18 months 429 58.4
Percentage of each feeding practice in first 6 months   
  exclusive breastfeeding 168 22.9
  exclusive bottle-feeding 104 14.2
  mixed feeding 462 62.9