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Table 1 Demographic data of case (cancer patients) and control (Non-cancer patients) of the study

From: Is neonatal phototherapy associated with a greater risk of childhood cancers?

  Cancer patients Non-cancer Total
n % n % n %
Age 1–2-y 24 20.7 24 20.7 48 20.7
  2–3-y 37 31.9 37 31.9 74 31.9
  3–4-y 55 47.4 55 47.4 110 47.4
sex Male 72 62.1 72 62.1 144 62.1
  female 44 37.9 44 37.9 88 37.9
Neonatal weight < 2500 g 21 18.3 21 18.9 42 18.6
  2500–3999 g 88 76.5 84 75.7 172 76.1
  > 4000 g 6 5.2 6 5.4 12 5.3
Mother age < 20-y 5 4.3 5 4.3 10 4.3
  20–24-y 31 26.7 19 16.5 50 21.6
  25–29-y 34 29.3 36 31.3 70 30.3
  30–34-y 22 19 30 26.1 52 22.5
  < 35-y 19 20.7 25 21.7 49 21.2
Mother educational level Illiterate 11 9.6 2 1.7 13 5.6
  Elementary 16 13.9 11 9.5 27 11.7
  High school 28 24.3 36 31 64 27.7
  Higher education 60 52.2 67 57.8 127 55
History of phototherapy No 87 75 94 81 181 78
  Yes 29 25 22 19 51 22
Urban and rural life Rural 23 20.4 21 18.1 44 19.2
  Urban 90 79.6 95 81.9 185 80.8
History of medicine No 104 90.4 108 93.1 212 91.8
  Yes 11 9.6 8 6.9 19 8.2
History of radiography No 104 91.2 113 97.4 217 94.3
  Yes 10 8.8 3 2.6 13 5.7
Breast feeding No 11 9.6 11 9.5 22 9.6
  Yes 77 67.5 71 61.2 148 64.3
  Both (+ formula) 26 22.8 34 29.3 60 26.1
History of maternal addiction No 110 95.7 113 97.4 223 96.5
  Yes 5 4.3 3 2.6 8 3.5
History of maternal infection No 93 80.9 110 94.8 203 87.9
  Yes 22 19.1 6 5.2 28 12.1