Age years | 50.4±13.8 |
Male sex | 45.8 |
BMI kg·m−2 | 27.8±5.6 |
Offspring cohort | 34.9 |
Pack-years | |
Former | 17.0±18.1 |
Current | 28.0±16.6 |
Smoking status | |
Never | 49.4 |
Former | 37.1 |
Current | 13.4 |
Smoker in household in adulthood | 25.4 |
Education | |
High school or less | 21.2 |
Some college | 31.6 |
College graduate | 46.8 |
Median census household income $1000 | 64.6±20.4 |
Asthma | 23.1 |
COPD | 4.7 |
Season of study visit | |
Winter | 22.8 |
Spring | 26.4 |
Summer | 25.4 |
Autumn | 25.4 |
FEV1 L | 3.2±0.9 |
FEV1 % pred | 97.9±15.1 |
FVC L | 4.2±1.1 |
FVC % pred | 102.1±13.4 |