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Table 2 Association between baseline body mass index and eight-year incidence of type 2 diabetes

From: Body mass index and type 2 diabetes in Thai adults: defining risk thresholds and population impacts

Body Mass Index (kg/m2) at baseline in 2005 Incident cases by 2013a Adjusted OR estimates relating BMI and T2DM
Model 1b OR (95% CI) Model 2c OR (95% CI)
Men
  < 18.5 5/968 0.94 (0.34–2.5) 0.85 (0.28–2.6)
 18.5 - <20.75 19/3232 1 1
 20.75 - <23.0 48/4970 1.4 (0.80–2.3) 1.2 (0.69–2.2)
 23.00 - < 25.00 77/ 4054 2.3 (1.4–3.8) 2.3 (1.3–3.9)
 25.00 - <27.50 120/ 2583 5.5 (3.4–9.0) 5.5 (3.2–9.2)
 27.50 - <30.00 75/1028 8.6 (5.1–14.4) 8.1 (4.7–14.1)
 30.00 - <32.50 52/369 20.2 (11.7–34.8) 22.6 (12.7–40.1)
 32.5 and over 34/151 42.3 (23.3–77.1) 43.3 (22.9–81.6)
Women
  < 18.5 3/4222 0.35 (0.10–1.2) 0.44 (0.12–1.5)
 18.5 - <20.75 18/7602 1 1
 20.75 - <23.0 38/5186 2.7 (1.5–4.7) 3.0 (1.6–5.7)
 23.00 - <25.00 45/2373 6.1 (3.5–10.6) 6.7 (3.6–12.4)
 25.00 - <27.50 63/1292 16.4 (9.6–27.9) 14.9 (8.1–27.5)
 27.50 - <30.00 35/543 21.6 (12.0–38.7) 23.0 (12.0–44.1)
 30.00 - <32.50 23/265 31.1 (16.4–58.8) 34.9 (17.4–69.7)
 32.5 and over 33/183 78.6 (43.1–143.4) 73.5 (37.0–146.2)
  1. ORs Odds ratios, CI Confidence Interval, BMI Body Mass Index in kg/m2 T2DM, type 2 diabetes mellitus
  2. aIncident cases cumulating by 2013 divided by population without diabetes at baseline
  3. bModel 1 is age adjusted
  4. cModel 2 is adjusted for age, education, income, area of childhood residence, physical activity, smoking, alcohol intake, fruit and vegetable intake, and sugar sweetened beverage intake. These variables were selected using directed acyclic graphs (see methods)