Table 1. Baseline characteristics of participants.

	Men (n = 3795)	Women (n = 5994)
Age group (years)
≤44	586 (15.4%)	1073 (17.9%)
45–54	390 (10.3%)	757 (12.6%)
55–64	886 (23.3%)	1579 (26.3%)
65–74	1224 (32.3%)	1690 (28.2%)
≥75	709 (18.7%)	895 (14.9%)
Smoking habit
None	1386 (36.5%)	5388 (89.9%)
Past	1235 (32.5%)	175 (2.9%)
Current	1174 (30.9%)	429 (7.2%)
Unknown	0 (0%)	2 (0.0%)
Drinking habit
None	1471 (38.8%)	5097 (85.0%)
Occasionally	782 (20.6%)	628 (10.5%)
Daily	1542 (40.6%)	267 (4.5%)
Unknown	0 (0%)	2 (0.0%)
Living conditions
Acceptable	1781 (46.9%)	2961 (49.4%)
Rather difficult	1033 (27.2%)	1706 (28.5%)
Difficult	670 (17.7%)	910 (15.2%)
Severe	295 (7.8%)	401 (6.7%)
Unknown	16 (0.4%)	16 (0.3%)