Table 1 Demographic characteristics for case and control groups.
Characteristics | Cases (N = 152)% | Controls (N = 151)% |
---|---|---|
Infant characteristics | ||
Year of birth | Â | Â |
  <2008 | 31 (20.4%) | 30 (19.9%) |
  2008–2010 | 54 (35.5%) | 42 (27.8%) |
  2011–2013 | 32 (21.1%) | 64 (42.4%) |
  >2013 | 35 (23.0%) | 15 (9.9%) |
Maternal characteristics | ||
Age at delivery | ||
  <25 years | 36 (23.7%) | 38 (25.2%) |
  25–29 years | 57 (37.5%) | 59 (39.1%) |
  30–34 years | 42 (27.6%) | 45 (29.8%) |
  ≥35 years | 17 (11.2%) | 9 (6.0%) |
Residence | ||
  Rural | 55 (36.2%) | 45 (29.8%) |
  Urban | 97 (63.8%) | 106 (70.2%) |
Educational level | ||
  Junior high | 36 (23.7%) | 26 (17.2%) |
  Senior high | 58 (38.1%) | 38 (25.2%) |
  Undergraduate | 38 (25.0%) | 47 (31.1%) |
  Postgraduate | 20 (13.2%) | 40 (26.5%) |
Pre-pregnancy BMI | ||
  Underweight (<18.5 kg/m2) | 32 (21.1%) | 16 (10.6%) |
  Normal (18.5–24.9 kg/m2) | 99 (71.9%) | 119 (78.8%) |
  Overweight (25.0–29.9 kg/m2) | 17 (11.2%) | 15 (9.9%) |
  Obese (≥30 kg/m2) | 4 (2.6%) | 1 (0.7%) |