Table 1 Descriptive statistics of healthy individuals Means of variables and their standard errors are calculated for continuous variables.
From: Effect of 6p21 region on lung function is modified by smoking: a genome-wide interaction study
KARE | GENIE | ARIRANG | |
|---|---|---|---|
Participants | 7473 | 4413 | 513 |
Age (years) | 52.0 ± 8.9 | 49.7 ± 6.8 | 59.0 ± 7.4 |
Gender | |||
Male | 3310 (44.3%) | 2507 (56.8%) | 208 (40.5%) |
Female | 4163 (55.7%) | 1906 (43.2%) | 305 (59.5%) |
Body mass index (kg/m2) | 24.7 ± 3.1 | 23.3 ± 2.8 | 25.3 ± 3.2 |
Height (cm) | 159.8 ± 8.7 | 165.6 ± 7.9 | 157.5 ± 8.5 |
Smoking status | |||
Non-smokers | 4768 (63.8%) | 2520 (57.1%) | 369 (71.9%) |
Former smokers | 1140 (15.3%) | 1380 (31.3%) | 65 (12.7%) |
Current smokers | 1565 (20.9%) | 513 (11.6%) | 79 (15.4%) |
Pack-years of smoking | 22.8 ± 17.2 | 16.2 ± 24.1 | 27.5 ± 15.3 |
FEV1 (liters) | 2.9 ± 0.7 | 3.0 ± 0.6 | 2.4 ± 0.6 |
FVC (liters) | 3.6 ± 0.9 | 3.7 ± 0.8 | 3.1 ± 0.8 |
FEV1/FVC ratio | 81.4 ± 5.4 | 81.7 ± 5.5 | 79.2 ± 5.1 |
