Variable | N = 628,878 (100%) |
---|---|
Childhood allergic diseases | |
 Sex | |
  Female | 300,290 (47.7) |
  Male | 328,588 (52.3) |
 Allergic diseases | |
  Asthma | 43,915 (6.98) |
  AR | 7808 (1.24) |
  AD | 26,901 (4.28) |
Maternal allergic diseases and perinatal variables | |
 Allergic diseases | |
  Asthma | 14,087 (2.24) |
  AR | 78,743 (12.5) |
  AD | 10,962 (1.74) |
 Urbanization levels | |
  1 (highest) | 191,780 (30.5) |
  2 | 201,557 (32.1) |
  3 | 114,312 (18.2) |
  4 (lowest) | 121,229 (19.3) |
 Parity | |
  1 | 427,514 (68.0) |
  2 | 176,644 (28.1) |
  3+ | 24,720 (3.93) |
 Gestational age (week) | 38.4 (1.52) |
 Birth weight, grams | 3110 (427) |
 Mode of delivery | |
  Spontaneous birth | 411,925 (65.5) |
  Cesarean section | 216,953 (34.5) |
 Age at delivery (years) | 29.1 (4.59) |
 Gestational diabetes | 10,196 (1.62) |
 Preeclampsia | 4663 (0.74) |