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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: Dent Traumatol. 2017 Dec;33(6):465–471. doi: 10.1111/edt.12377

Table 1.

Characteristics of the sample and occurrence of traumatic dental injuries (TDI) according to the independent variables.

Variables N (%) TDI
p
n (%)
Gender 0.010
 Male 233 (50.9) 85 (36.5)
 Female 225 (49.1) 57 (25.3)
Mother’s schooling 0.509
 < 8 years 142 (31.0) 41 (28.9)
 ≥ 8 years 316 (69.0) 101 (32.0)
Family Income 0.987
 1st Tertile 149 (33.5) 47 (31.5)
 2nd Tertile 150 (33.8) 46 (30.7)
 3rd Tertile 145 (32.7) 45 (31.0)
Birth weight 0.451
 <2,500 g 27 (6.2) 06 (22.2)
 2,500 – 4,000 g 376 (85.8) 116 (30.9)
 > 4,000 g 35 (8.0) 13 (37.1)
Birth length 0.089
 <48 cm 110 (25.3) 27 (24.5)
 ≥48 cm 325 (74.7) 108 (33.2)
Head circumference at birth 0.309
 < −1SD 63 (13.8) 23 (36.5)
 ≥ −1SD 395 (86.2) 119 (30.1)
Type of birth 0.526
 Cesarean 136 (30.8) 45 (33.1)
 Normal 306 (69.2) 92 (30.1)
Head circumference at 12 months 0.300
 < −0.5SD 56 (12.2) 14 (25.0)
 ≥ −0.5SD 402 (87.8) 128 (31.8)
BMI at 12 months 0.004
 Normal 209 (51.2) 50 (23.9)
 Overweight / obese 199 (48.8) 74 (37.2)
Height for age at 12 months 0.498
 ≤1SD 369 (90.2) 110 (29.8)
 >1SD 40 (9.8) 14 (35.0)

SD - Standard Deviation