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Table 1 Baseline sample characteristics stratified by sex and study group
| Men | Women | |||
|---|---|---|---|---|
| Intervention | Control | Intervention | Control | |
| N = 2,965 | N = 1,568 | N = 3,126 | N = 1,756 | |
| Socio-demographic variables | ||||
| Age, n (%) | ||||
| 30–35 years | 415 (14.0) | 365 (23.3) | 514 (16.4) | 478 (27.2) |
| 40–50 years | 1,822 (61.4) | 678 (43.2) | 1,908 (61.0) | 774 (44.1) |
| 55–60 years | 728 (24.6) | 525 (33.5) | 704 (22.5) | 504 (28.7) |
| Living with a partner, n (%) | ||||
| Yes | 2,481 (85.0) | 1,300 (84.6) | 2,468 (80.2) | 1,388 (80.7) |
| Education, n (%) | ||||
| None | 450 (16.6) | 245 (17.6) | 535 (18.7) | 335 (20.9) |
| ≤1 year | 65 (2.4) | 41 (2.9) | 199 (6.9) | 104 (6.5) |
| 2–4 years | 1,759 (65.2) | 900 (64.5) | 1,911 (66.6) | 1,036 (64.6) |
| 5–9 years | 427 (15.8) | 209 (15.0) | 223 (7.8) | 128 (8.0) |
| Employed, n (%) | ||||
| Yes | 2,609 (89.8) | 1,343 (86.6) | 2,618 (85.4) | 1,390 (80.1) |
| Health-related variables | ||||
| Self-perceived health, n (%) | ||||
| Excellent/ very good | 1,008 (34.4) | 585 (37.9) | 979 (31.5) | 630 (36.3) |
| Good | 1,637 (56.0) | 829 (53.6) | 1,760 (56.7) | 891 (51.4) |
| Fair/ poor | 281 (9.6) | 132 (8.5) | 365 (11.8) | 213 (12.3) |
| Daily smoking, n (%) | ||||
| Yes | 1,083 (36.9) | 643 (41.4) | 1,085 (35.0) | 633 (36.3) |
| Alcohol use (drinks/week), n (%) | ||||
| 0 | 222 (7.8) | 112 (7.4) | 410 (14.0) | 291 (17.5) |
| 1–7 | 980 (34.4) | 563 (37.1) | 1,610 (54.9) | 863 (51.9) |
| 8–14 | 651 (22.8) | 332 (21.9) | 566 (19.3) | 317 (19.1) |
| 15–21 | 426 (15.0) | 187 (12.3) | 215 (7.3) | 128 (7.7) |
| >21 | 571 (20.0) | 323 (21.3) | 130 (4.5) | 64 (3.8) |
| Physical activity, n (%) | ||||
| Mainly sedentary | 642 (22.3) | 355 (23.4) | 664 (21.7) | 391 (23.1) |
| Moderate activity | 1,624 (56.3) | 863 (56.8) | 2,026 (66.2) | 1,076 (63.5) |
| Regular exercise/ heavy training | 617 (21.4) | 300 (19.8) | 371 (12.1) | 228 (13.4) |
| Limited in stair-climbing, n (%) | ||||
| Yes | 299 (10.3) | 201 (13.1) | 547 (17.8) | 349 (20.1) |
| Dietary quality, n (%) | ||||
| Healthy | 282 (9.9) | 118 (8.0) | 546 (18.0) | 257 (15.6) |
| Average | 1,979 (69.8) | 1,004 (68.5) | 2,142 (70.7) | 1,138 (69.1) |
| Unhealthy | 576 (20.3) | 345 (23.5) | 342 (11.3) | 253 (15.3) |
| Self-rated IHD risk of diet, n (%) | ||||
| Yes | 433 (15.0) | 201 (13.2) | 328 (10.8) | 183 (10.7) |
| Outcome variables at baseline | ||||
| Intake of saturated fata, n (%) | ||||
| Yes | 2,599 (88.7) | 1,340 (86.6) | 2,654 (85.6) | 1,454 (83.6) |
| Intake of vegetables (g/week), M ± SD | 415.3 ± 255.4 | 401.8 ± 251.8 | 476.2 ± 263.0 | 464.0 ± 265.3 |
| Intake of fruit (g/week), M ± SD | 623.1 ± 775.8 | 622.1 ± 772.5 | 932.3 ± 889.4 | 935.8 ± 929.8 |
| Intake of fish (g/week), M ± SD | 158.0 ± 120.0 | 163.6 ± 128.0 | 159.4 ± 122.2 | 146.5 ± 125.2 |
| Physical activity (min/week), M ± SD | 285.9 ± 163.2 | 298.3 ± 162.4 | 290.9 ± 161.4 | 286.9 ± 165.0 |
