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Table 2 Odds ratios for incident diabetes in 3.6-year follow-up in 4638 subjects (1922 men and 2716 women) without diabetes at baseline by the three main categories of body mass index (BMI)

From: Population attributable risk for diabetes associated with excess weight in Tehranian adults: a population-based cohort study

  

Total (n = 4638)

 

Men (n = 1922)

 

Women (n = 2716)

BMI (kg/m2)

18.5 to < 25

25 to < 30

≥ 30

18.5 to < 25

25 to < 30

≥ 30

18.5 to < 25

25 to < 30

≥ 30

Number (%)

1516

2001

1121

767

859

296

749

1142

825

Number of incident diabetes (%)

23 (1.4)

72 (3.6)

87 (7.8)

15 (2.0)

32 (3.7)

26 (8.8)

8 (1.1)

40 (3.5)

61 (7.4)

Unadjusted odds ratios (95% CI)

1

2.57 (1.60–4.13)

5.79 (3.63–9.23)

1

1.9 (1.04 – 3.61)

4.83 (2.52 – 9.25)

1

3.36 (1.57–7.22)

7.39 (3.52–15.56)

Adjusted odds ratios (95% CI)

         

   Family history of diabetes (FHD)

1

2.48 (1.53–4.03)

5.36 (3.32–8.65)

1

1.82 (0.95 – 3.47)

4.69 (2.40–9.15)

1

3.27 (1.52–7.03)

6.57 (3.11–13.90)

   FHD & age

1

2.20 (1.35–3.58)

4.65 (2.87–7.52)

1

1.67 (0.87–3.20)

4.68 (2.39–9.18)

1

2.78 (1.29–6.01)

5.17 (2.42–11.0)

   FHD & age & triglycerides

1

1.89 (1.15–3.09)

3.89 (2.39–6.32)

1

1.31 (0.67–2.56)

3.82 (1.93–7.55)

1

2.54 (1.17–5.51)

4.46 (2.07–9.60)

   FHD & age & triglycerides & systolic blood pressure

1

1.76 (1.07–2.89)

3.54 (2.16–5.79)

1

1.2 (0.62–2.40)

3.52 (1.76–7.04)

1

2.43 (1.12–5.29)

4.15 (1.92–8.97)

Population attributable risk (%) (95% CI)

 

23.3 (21.3–25.3)

37.1 (36.2–37.9)

 

7.8 (3.8–11.8)

26.6 (24.6–28.7)

 

35.3 (31.7–38.8)

48.34 (47.1–49.6)