Table 1 Demographics of the study population extracted from the Finnish and Swedish registries
Variable | N | FINLAND N = 152 | SWEDEN N = 160 | p |
|---|---|---|---|---|
Gender | ||||
Female n (%) | 95 | 48 (31.6) | 47 (29.4) | 0.672 |
Male n (%) | 217 | 104 (68.4) | 113 (70.6) | |
Age at inclusion mean (SD) | 312 | 74.6 (8.3) | 72.5 (8.0) | 0.017 |
BMIa, kg/m2, mean (SD) | 268 | 28.5 (5.5) | 27.1 (4) | 0.083 |
Smoking habits | ||||
Never smoker n (%) | 102 | 63 (41.7) | 39 (26.9) | 0.007 |
Ex or current smoker n (%) | 195 | 88 (58.3) | 106 (73.1) | |
Pack/years mean (SD) | 144 | 24.4 (13.7) | 24 (14.8) | 0.716 |