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Table 1 Prevalence of atopy via positive skin prick tests and high serum IgE among females and males

From: DNA methylation loci associated with atopy and high serum IgE: a genome-wide application of recursive Random Forest feature selection

  Epigenetic subsample Full cohort Subsample vs full cohort
Outcome variables Females Males χ 2 Females Males χ 2
(n = 245) (n = 122) P-value (n = 786) (n = 750) P-value
Atopy At least one positive 76 (31.4 %) 49 (40.8 %) 0.097 159 (35.6 %) 194 (47.7 %) Females: 0.30
All negative 166 (68.6 %) 71 (59.2 %) 287 (64.4 %) 213 (52.3 %) Males: 0.22
IgE IgE ≥ 200 kU/L 24 (23.8 %) 18 (41.9 %) 0.047 66 (25.9 %) 81 (32.5 %) Females: 0.78
IgE < 200 kU/L 77 (76.2 %) 25 (58.1 %) 189 (74.1 %) 168 (67.5 %) Males: 0.31