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. 2006 Dec 7;6:296. doi: 10.1186/1471-2458-6-296

Table 3.

The combination of body mass index (BMI) and leisure-time physical activity/exercise in relation to risk of acute myocardial infarction. All cases and all controls.

BMI < 20 20 ≤ BMI < 25 25 ≤ BMI < 30 BMI ≥ 30
Leisure-time physical activity/exercise cases/controls OR 95% CI cases/controls OR 95% CI cases/controls OR 95% CI cases/controls OR 95% CI

All
Very little, occasional walks 57/42 1.50 0.97–2.34 326/394 1* 401/423 1.19 0.96–1.46 211/178 1.55 1.20–2.01
Now and then, once per week 18/24 1.09 0.57–2.08 141/343 0.56 0.44–0.73 214/330 0.88 0.69–1.11 63/73 1.20 0.82–1.76
Twice per week or more 6/13 0.62 0.23–1.68 79/263 0.44 0.32–0.59 103/181 0.79 0.59–1.06 35/27 1.85 1.07–3.18
Men
Very little, occasional walks 21/24 0.88 0.47–1.66 217/238 1 290/303 1.13 0.88–1.45 121/98 1.47 1.05–2.05
Now and then, once per week 9/10 1.20 0.47–3.08 96/206 0.57 0.42–0.79 165/232 0.90 0.68–1.19 41/43 1.20 0.74–1.94
Twice per week or more 3/8 0.56 0.14–2.18 61/203 0.41 0.29–0.59 90/138 0.85 0.61–1.19 25/20 1.70 0.90–3.22
Women
Very little, occasional walks 36/18 2.40 1.25–4.62 109/156 1 111/120 1.32 0.91–1.93 90/80 1.65 1.09–2.48
Now and then, once per week 9/14 1.02 0.40–2.58 45/137 0.53 0.34–0.82 49/98 0.77 0.49–1.20 22/30 1.21 0.64–2.28
Twice per week or more 3/5 0.62 0.14–2.80 18/60 0.49 0.26–0.90 13/43 0.50 0.25–1.01 10/7 2.11 0.74–6.02

OR-odds ratio; CI-confidence interval

* The normal-weight (20 ≤ BMI < 25) and sedentary group was used as the reference category in all analyses.

Adjusted for age, hospital catchment area, socioeconomic status, smoking and sex

Adjusted for age, hospital catchment area, socioeconomic status and smoking