TABLE 4

Association between maternal body mass index and number of consultations and prescriptions for wheezing illnesses up to the age of 5 years in the offspring

ModelSubjects nConsultations for wheezing illnessesSubjects nPrescriptions of:
Inhaled corticosteroidsShort-acting β2-agonists
IRR (95% CI)p-valueIRR (95% CI)p-valueIRR (95% CI)p-value
110331.035 (1.009–1.062)0.0110511.076 (1.047–1.106)<0.011.046 (1.023–1.069)<0.01
28731.033 (1.001–1.065)0.048881.097 (1.063–1.133)<0.011.057 (1.031–1.084)<0.01
35241.002 (0.962–1.044)0.925241.109 (1.061–1.160)<0.011.073 (1.036–1.111)<0.01
47051.022 (0.986–1.059)0.237171.077 (1.037–1.120)<0.011.058 (1.025–1.084)<0.01
  • IRR: incidence rate ratio; 1: univariable; 2: daycare, breastfeeding, older siblings, smoke exposure during pregnancy, pet keeping, socioeconomic status, ethnicity and maternal age; 3: all variables of model 2 and weight and height at the 5-year visit; 4: all variables of model 2 and resistance of the respiratory system.