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Table 2 Adjusted odds ratio of being at a higher LTPA level by characteristics and survey

From: Secular trends and correlates of physical activity: The Tromsø Study 1979-2008

  Adjusted Odds Ratios (95% Confidence Interval)
1979–80 (n = 14,039) 1986–87 (n = 18,533) 2001 (n = 2969) 2007–08 (n = 7834)
Sex
 Women 1.0 1.0 1.0 1.0
 Men 2.15 (1.99–2.31) 1.87 (1.76–1.99) 1.33 (1.14–1.56) 1.52 (1.39–1.67)
Age
 20–29 1.02 (0.94–1.10) 1.17 (1.09–1.27)   
 30–39 1.0 1.0 1.0 1.0
 40–49 0.96 (0.88–1.04) 1.06 (0.98–1.14) 0.98 (0.79–1.23) 0.77 (0.64–0.94)
 50–59 0.76 (0.65–0.89) 1.10 (1.00–1.21) 1.20 (0.94–1.53) 0.64 (0.53–0.79)
 60–69   0.80 (0.65–0.99) 1.38 (1.08–1.76) 0.68 (0.56–0.84)
 70–79     0.53 (0.39–0.73)
 80–89     0.26 (0.13–0.53)
BMI (kg/m2)
 < 18.5 0.69 (0.56–0.85) 0.61 (0.49–0.75) 0.94 (0.31–2.86) 0.69 (0.35–1.35)
 18.5–24.9 1.0 1.0 1.0 1.0
 25–29.9 0.81 (0.76–0.89) 0.78 (0.73–0.84) 0.94 (0.79–1.11) 0.82 (0.74–0.91)
 ≥ 30 0.64 (0.53–0.76) 0.54 (0.48–0.62) 0.69 (0.55–0.86) 0.51 (0.45–0.58)
Education level
 ≤ 9 years 1.0 1.0 1.0 1.0
 10–12 years 1.19 (1.10–1.29) 1.21 (1.12–1.30) 0.97 (0.79–1.19) 1.40 (1.23–1.60)
 > 12 years 1.55 (1.42–1.69) 1.45 (1.34–1.57) 1.26 (1.03–1.55) 1.53 (1.34–1.75)
Smoking
 No 1.0 1.0 1.0 1.0
 Yes 0.60 (0.57–0.65) 0.57 (0.53–0.60) 0.78 (0.66–0.92) 0.53 (0.47–0.60)
Cardiovascular disease
 No 1.0 1.0 1.0 1.0
 Yes 0.71 (0.49–1.03) 0.84 (0.68–1.04) 0.84 (0.59–1.21) 1.09 (0.89–1.33)
WPA
 Mostly sedentary 1.0 1.0 1.0 1.0
 Walking 1.29 (1.20–1.40) 1.46 (1.37–1.56) 1.33 (1.11–1.58) 1.30 (1.17–1.45)
 Walking and lifting 1.50 (1.36–1.65) 1.69 (1.56–1.84) 1.42 (1.16–1.74) 1.28 (1.13–1.45)
 Heavy manual labour 1.54 (1.33–1.79) 1.98 (1.73–2.28) 2.61 (1.68–4.05) 1.56 (1.29–2.02)
Employed
 No 1.0 1.0 1.0  
 Yes 0.82 (0.67–0.99) 0.90 (0.77–1.05) 1.58 (0.82–3.06)  
Self-perceived healtha
 Very bad   1.0 1.0 1.0
 Bad   0.82 (0.44–1.54) 1.89 (0.73–4.90) 0.85 (0.26–2.73)
 Neither good nor bad   0.89 (0.48–1.64)   1.18 (0.38–3.69)
 Good   1.40 (0.76–2.58) 2.80 (1.09–7.20) 2.18 (0.70–6.84)
 Excellent   2.28 (1.24–4.21) 5.78 (2.21–15.11) 4.68 (1.49–14.74)
  1. Adjusted for sex, age, BMI, smoking, cardiovascular disease, WPA, education level, employment status, and self-perceived health in each survey
  2. aIn 2001, the alternatives were “poor”, “not so good”, “good”, and “very good”
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