Table 6.
Percentage of current smokers by cigarettes consumed per day as of 1965, 1972, and 1999, and former smokers by year of cessation as of 1999 among 1959 never smokers by smoking status of spouse. Values are percentages (numbers) of cigarette smokers
|
Current smoking as of 1965 (cigarettes/day)
|
Current smoking as of 1972 (cigarettes/day)
|
Cigarette smoking as of 1999
|
|||||
|---|---|---|---|---|---|---|---|
| 1959 spousal smoking | 1-9 | ≥10 | 1-9 | ≥10 | Current | Former (quit <1960) | Former (quit ≥1960) |
| 1959 male never smokers | |||||||
|
|
(n=8 602)
|
(n=5 479)
|
|
(n=679)
|
|
||
| Never | 0.3 (16) | 0.8 (36) | 0.2 (5) | 0.2 (8) | 0.2 (1) | 5.2 (24) | 0.7 (3) |
| Former | 0.4 (2) | 1.2 (6) | 0 | 0.8 (2) | 0 | 15.3 (6) | 0 |
| Current | 0.7 (8) | 2.0 (25) | 0.3 (3) | 0.5 (4) | 0 | 6.5 (8) | 1.6 (2) |
| 1959 female never smokers | |||||||
|
|
(n=24 112)
|
(n=16 237)
|
|
(n=2 412)
|
|
||
| Never | 0.3 (16) | 0.4 (19) | 0.3 (9) | 0.4 (12) | 0.3 (2) | 2.8 (16) | 1.4 (8) |
| Former | 0.5 (24) | 0.4 (25) | 0.2 (9) | 0.3 (9) | 0.2 (1) | 5.0 (22) | 0.9 (4) |
| Current: | |||||||
| Pipe or cigar | 0.6 (15) | 0.4 (9) | 0.6 (7) | 0.4 (4) | 0.4 (1) | 1.8 (3) | 1.8 (3) |
| 1-19 cigarettes/day | 0.8 (21) | 0.9 (22) | 0.6 (9) | 0.5 (7) | 0 | 1.7 (4) | 2.2 (5) |
| 20-39 cigarettes/day | 1.0 (41) | 1.2 (52) | 0.5 (13) | 0.6 (15) | 0.2 (1) | 1.4 (6) | 1.7 (7) |
| ≥40 cigarettes/day | 1.4 (10) | 1.6 (11) | 0.6 (3) | 0.2 (1) | 1.1 (1) | 6.4 (5) | 3.9 (3) |
| Total of current smokers | 0.9 (87) | 0.9 (94) | 0.6 (32) | 0.5 (27) | 0.3 (3) | 2.0 (18) | 2.0 (18) |
|
1959 male never smokers aged ≥50 years at enrolment
|
|
|
|
|
|
|
|
|
|
(n=5 521)
|
(n=3 306)
|
|
(n=122)
|
|
||
| Never | 0.3 (10) | 0.8 (23) | 0.1 (1) | 0.2 (4) | 0 | 5.3 (5) | 0 |
| Former | 0 | 1.4 (4) | 0 | 0 | 0 | 9.1 (1) | 0 |
| Current | 0.6 (4) | 2.5 (16) | 0 | 0.6 (3) | 0 | 11.8 (2) | 0 |
|
1959 female never smokers aged ≥50 years at enrolment
|
|
|
|
|
|
|
|
|
|
(n=14 014)
|
(n=8 957)
|
|
(n=355)
|
|
||
| Never | 0.2 (6) | 0.3 (6) | 0.3 (4) | 0.3 (4) | 0 | 1.0 (1) | 0 |
| Former | 0.1 (4) | 0.5 (13) | 0.2 (4) | 0 | 0 | 7.1 (7) | 0 |
| Current: | |||||||
| Pipe or cigar | 0.2 (3) | 0.2 (4) | 0.4 (1) | 0 | 0 | 2.3 (1) | 0 |
| 1-19 cigarettes/day | 0.4 (5) | 0.8 (12) | 0.3 (2) | 0.6 (4) | 0 | 3.4 (1) | 0 |
| 20-39 cigarettes/day | 0.7 (14) | 0.9 (20) | 0.5 (5) | 0.5 (4) | 1.3 (1) | 0 | 2.7 (2) |
| ≥40 cigarettes/day | 0.6 (2) | 1.6 (5) | 0.8 (2) | 0 | 0 | 0 | 0 |
| Total of current smokers | 0.4 (24) | 0.8 (41) | 0.4 (10) | 0.4 (8) | 0.6 (1) | 1.3 (2) | 1.3 (2) |
| Some values do not agree with denominators due primarily to missing data. | |||||||