Exposure to high levels of perinatal anxiety was associated with an increased risk for LRTIs, especially bronchiolitis, in infants with the AG + GG genotype of GSTP1 (rs1695), compared to infants with exposure to low levels of perinatal anxiety and with the AA genotype (aOR 2.61, 95% CI: 1.09–6.22; aOR 3.36, 95% CI: 1.25–9.03, respectively) (Table 3). Here, GSTP1 is linked to bronchiolitis.