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. 2014 Mar 21;71(6):430–436. doi: 10.1136/oemed-2013-101867

Table 1.

Description of the study population, 672children enrolled at birth

Variable n %
Sex, male 342 50.7
Italian mother 645 95.7
Preterm birth 37 5.5
Small for gestational age 86 12.8
Day-care attendance* 175 26.1
Mother smoking during pregnancy 82 12.2
Breastfeeding at 3 months 329 48.9
Humidity or mould at home 89 13.2
Any pets in home* 178 26.5
Siblings 283 42.1
Mother's education, %high (university degree) 240 35.7
Father's education, %high (university degree) 192 28.6
Mother or father smoking at home* 90 13.4
Mother with asthma 61 9.1
Father with asthma 67 10.0
Mother with chronic bronchitis 9 1.3
Father with chronic bronchitis 18 2.7

*From questionnaire at 15 months.