Table 1 Estimated parameters of body mass index trajectories among adults who did and did not develop diabetes.

From: Body mass index trajectory patterns and changes in visceral fat and glucose metabolism before the onset of type 2 diabetes

BMI trajectories

Intercept, kg/m2

Linear slope, kg/m2

Group

Average group

Estimate (95% CI)

Estimate (95% CI)

proportion, n (%)

probability

Developed diabetes

 Low BMI group

21.5 (21.4, 21.7)

0.09 (0.07, 0.11)

728 (38.5)

0.97

 Medium BMI group

25.4 (25.3, 25.4)

0.14 (0.13, 0.16)

898 (47.5)

0.96

 High BMI group

30.1 (29.8, 30.5)

0.30 (0.24, 0.35)

266 (14.1)

0.98

Diabetes not developed

 Low BMI group

20.3 (20.3, 20.3)

0.02 (0.02, 0.03)

7,887 (35.7)

0.97

 Medium BMI group

23.8 (23.8, 23.8)

0.03 (0.03, 0.03)

10,924 (49.5)

0.97

 High BMI group

28.0 (28.0, 28.1)

0.07 (0.06, 0.08)

3,275 (14.8)

0.98

  1. Abbreviations: BMI, body mass index; CI, confidence interval.
  2. Data on intercept and slope were obtained using linear regression analysis.