Table 1—

Baseline characteristics of the cohort study attendees compared with those reinvited but not attending the follow-up by district

CharacteristicsAttending follow-up
Not attending follow-up
Nonattendants versus attendants, control district versus intervention district
Intervention districtControl districtP value (χ2/t test)Intervention districtControl districtP value (χ2/t test)Net difference (95% CI)
Background variables
    n890876447431
    Age (years)49.0 ± 10.048.9 ± 9.00.7244.6 ± 9.946.8 ± 9.70.0012.4 (0.8–3.9)
    Women507 (57.0)473 (54.0)0.21256 (56.6)249 (57.2)0.863.6 (−4.4 to 11.6)
    Non-Western immigrants147 (16.5)172 (19.6)0.09138 (30.5)126 (29.0)0.61−4.6 (−11.6 to 2.4)
    Years of education11.6 ± 3.912.5 ± 3.8<0.00111.2 ± 3.711.5 ± 3.70.39−0.7 (−1.3 to 0.0)
    Full-time work527 (60.2)619 (72.7)<0.001276 (61.7)255 (60.7)0.76−13.5 (−21.4 to −5.7)
    Disability pension*156 (19.9)87 (11.5)<0.00167 (17.4)64 (18.8)0.629.8 (3.1–16.5)
Antropometry variables
    BMI (kg/m2)27.1 ± 4.626.5 ± 4.30.00327.1 ± 5.226.9 ± 4.80.520.4 (−0.4 to 1.2)
    Obesity (BMI >30 kg/m2)206 (23.2)150 (17.1)0.002114 (25.4)91 (21.3)0.152.0 (−4.7 to 8.7)
Daily smoking315 (35.6)264 (30.6)0.03202 (45.4)173 (40.5)0.150.1 (−7.8 to 8.0)
Physically inactive
    No heavy physical activity in     leisure time or commuting362 (41.9)282 (37.9)0.10200 (45.9)181 (51.4)0.129.5 (1.0–18.0)
    Stages of change§282 (37.3)224 (30.7)0.007125 (37.5)123 (41.8)0.2610.9 (1.9–20.0)
Disease prevalence
    Self-reported diabetes40 (4.6)24 (2.8)0.0521 (4.7)22 (5.2)0.752.3 (−1.1 to 5.7)
    All diabetes71 (8.0)45 (5.2)0.0228 (6.2)37 (8.6)0.185.2 (1.0–9.4)
  • Data are n (%) or means ± SD, as appropriate. The net difference between districts with respect to selection is the difference between nonattendees and attendees in the control district versus the intervention district.

  • *

    * Disability pension: n = 783/386 and 759/341 for attendees versus nonattendees in intervention and control district, respectively.

  • Heavy physical activity, n = 863/436 and 744/352 in intervention and control district, respectively.

  • Stages of change: n = 755/334 and 730/294 in intervention and control district, respectively. All other numbers are identical with or close to the n reported at the top of each column.

  • §

    § Sum of precontemplative and contemplative stages.