a nonsignificant trendP = .064
Asthma cases had higher levels of total serum IgE as compared with asthma controls ( P = 3.1 × 10 −5 ), percentage of eosinophils ( P = .0013), and a nonsignificant trend toward having higher BMI ( P = .064) and higher levels of cotinine (increased acute exposure to nicotine; P = .11).