Table 1 Geographic and sociodemographic characteristics of the study population
| Â | Study Cohort | |
|---|---|---|
MCAD deficiency, n (%) (n = 40) | Screen negative, n (%) (n = 545,355) | |
Sex | ||
 Male | 20 (50.0) | 279,638 (51.3) |
 Female | 20 (50.0) | 265,717 (48.7) |
Season of Birth | ||
 January – April | 12 (30.0) | 177,918 (32.6) |
 May – August | 16 (40.0) | 192,896 (35.4) |
 Sept. – Dec. | 12 (30.0) | 174,541 (32.0) |
Birth weighta | ||
  < 2500 g | < 6 (≤12.5) | 33,027 (6.1) |
  ≥ 2500 g | 35–40 (≥87.5) | 508,466 (93.9) |
Gestational agea | ||
  < 37 weeks | < 6 (≤12.5) | 42,235 (7.9) |
  ≥ 37 weeks | 35–40 (≥87.5) | 489,232 (92.1) |
Socioeconomic status | ||
  ‘Lower’ | 16 (40.0) | 232,269 (42.8) |
  ‘Higher’ | 24 (60.0) | 310,003 (57.2) |
Urban-rural statusb | ||
 Rural | 6 (15.0) | 34,111 (6.3) |
 Urban | 34 (85.0) | 505,236 (93.7) |