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Table 6 Meta-analysis of combined classes of baseline physical activity (PA) and baseline body mass index on development of T2D

From: Independent and combined effects of physical activity and body mass index on the development of Type 2 Diabetes – a meta-analysis of 9 prospective cohort studies

Combined PA x BMI classes   Model 1a Model 2b
  N HR (95 % CI) HR (95 % CI)
High PA, normal weight   1.00 1.00
Medium PA, normal weight 9 0.80 (0.46–1.38) 0.84 (0.50–1.39)
Low PA, normal weight 6 1.75 (1.19–2.58) 1.61 (1.09–2.37)
High PA, overweight 9 2.38 (1.83–3.10) 2.26 (1.74–2.93)
Medium PA, overweight 9 2.52 (1.94–3.28) 2.45 (1.87–3.20)
Low PA, overweight 7 3.00 (2.31–3.88) 2.86 (1.93–4.22)
High PA, obese 9 6.62 (4.39–10.00) 6.13 (4.25–8.84)
Medium PA, obese 9 7.21 (4.16–12.51) 6.93 (4.20–11.43)
Low PA, obese 7 8.07 (3.91–16.67) 7.43 (3.47–15.89)
  1. aModel 1: T2D = combined physical activity level and BMI categories
  2. bModel 2: Model 1 + age + gender + educational level + smoking