TABLE 1

Characteristics of the Mother and Infant Pairs Included in This Prospective Case-Control Study

CharacteristicFood Allergy (n = 41)Control (n = 82)Pa
Male gender24 (58.5)43 (52.4).522
Median birth weight, g3480.0 (2160–4120)3370.0 (2270–5060).913b
Median length, cm53.0 (48–59)52.0 (47–61).909b
Duration of pregnancy, wk39.5 (36–42)40.0 (36–42).062b
Median maternal age, y 31.0 (19–43)33.0 (22–42).192b
Median paternal age, y 33.5 (21–42)34.0 (23–49).247b
Maternal education
 Did not complete basic education0 (0)0 (0).448
 Completed basic education4 (9.7)6 (7.3)
 Junior college/vocational training11 (26.8)15 (18.3)
 University/college26 (63.4)61 (74.4)
Median maternal prepregnancy BMI, kg/m222.9 (16.6–43.0)22.8 (16.5–49.2).323b
Maternal asthma11 (26.8)11 (13.4).067
Maternal allergy22 (53.7)31 (37.8).105
Maternal smoking1 (2.4)3 (3.7)1.000
Only child 24 (58.5)49 (59.8).570
Urban dwelling 8 (19.5)11 (13.4).378
Pet ownership26 (63.4)40 (48.8).142
  • Data are presented as n (%) or median (range).

  • a χ2 test.

  • b Mann-Whitney U test.