FIGURE 2. Association between exposure and several definitions of atopy.
Indoor (h; n5212) and outdoor atopy (&; n5212) were defined as any positive
skin-prick test (SPT) result with any of the indoor (mould mix, cockroach, dust mite,
dog, cat) or outdoor allergens (pine, grass mix, tree mix), respectively (&: o1 SPT
(n5212); &: o2 SPTs (n5161); &: o3 SPTs (n5133)). Odds ratios (ORs) were
adjusted for symptom status, sex, age, ethnicity and smoking. *: p,0.05