Characteristics Eczema Non-eczema P
Total (n, %) 1155(19.8) 4664(80.2)
Characteristics of children
Gender (n, %) 0.329
male 612(52.99) 2394(51.33)
female 543(47.01) 2270(48.67)
Birth weight (g, mean ± SD) 3404.7±474.21 3389.4±487.9 0.144
Breastfeeding 0.328
<12months 162(14.03) 601(12.89)
≥12 months 993(85.97) 4063(87.11)
Birth mode (n, %) 0.124
Vaginal delivery 654(56.62) 2521(54.05)
Cesarean delivery 501(43.38) 2143(45.95)
Use of masks (n, %) 0.379
Yes 741(64.16) 3059(65.59)
Preterm birth (n, %) 0.645
Yes 55(4.76) 205(4.40)
Characteristics of parents
Parental atopy (n, %) 0.014
Yes 255(22.08) 878(18.83)
Maternal age at delivery (years, n, %) 0.747
<35 942(81.56) 3782(81.09)
≥35 213(18.44) 882(18.91)
Maternal work during pregnancy (n, %) <0.001
Yes 759(65.71) 2801(60.06)
Maternal Primipara (n, %) <0.001
Yes 621(53.77) 2230(47.81)
Family characteristics
House decoration (n, %) 0.155
Yes 44(3.81) 226(4.85)
Home dampness (n, %) 0.830
Yes 43(3.72) 165(3.54)
Use of carpet (n, %) 0.255
Yes 51(4.42) 170(3.65)
Pets (n, %) 0.250
Yes 33(2.86) 104(2.23)
Monthly household income (RMB, n, %) 0.009
<6000 121(10.48) 625(13.40)
≥6000 1034(89.52) 4039(86.60)
Open windows often (n, %) <0.001
Yes 600(51.95) 2821(60.50)
Use an air purifier (n, %) 0.019
Yes 273(23.64) 953(20.44)