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Table 1 Baseline sample characteristics stratified by sex and study group

From: The long-term effect of screening and lifestyle counseling on changes in physical activity and diet: the Inter99 Study – a randomized controlled trial

  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
  1. Note: M = mean, SD = standard deviation; afor cooking and on bread.