Table 1

Total number of individuals, T2D rates, and baseline characteristics of subjects for incident T2D in the seven studies

BRHSBWHHSEASMRC NSHDWHIIELSACAPSTotal
Number included in analysis2,3171,8547032,4103,0451,6851,28013,294
Number with incident T2D (%)150 (6.5)103 (5.6)16 (2.3)118 (4.9)219 (7.2)74 (4.4)124 (9.7)804 (6.1)
Length of follow-up, years207121010415.511.2
Rate per 1,000 person-years3.27.91.94.97.211.06.35.4
Age, years49.1 (5.6)70.8 (5.3)64.5 (5.6)53.0 (0)48.9 (6.0)73.6 (9.1)56.7 (4.5)57.4 (11.2)
Sex, % male (n)100% (2,317)0% (0)46.8% (329)49.9% (1,203)76.7% (2,336)51.8% (873)100% (1,280)62.7% (8,338)
BMI, kg/m225.4 (2.9)27.5 (4.8)25.3 (3.6)27.3 (4.6)25.2 (3.5)27.2 (4.2)26.6 (3.6)26.3 (4.1)
HDL, mmol/L1.15 (0.24)1.63 (0.44)1.47 (0.37)1.68 (0.49)1.42 (0.40)1.51 (0.38)1.03 (0.25)1.42 (0.44)
Triglyceride, mmol/L*1.87 (0.81)1.71 (0.76)1.35 (0.58)1.82 (1.01)1.22 (0.67)1.56 (0.77)1.70 (0.85)1.58 (0.83)
Systolic blood pressure, mmHg144.6 (20.5)154.3 (27.2)142.7 (23.4)138.0 (21.2)121.1 (13.9)146.1 (20.4)145.9 (22.5)139.6 (23.6)
Diastolic blood pressure, mmHg82.2 (13.3)83.1 (13.0)77.1 (12.1)85.8 (13.0)80.1 (9.7)77.9 (11.5)84.5 (11.7)81.9 (12.3)
Fasting glucose, mmol/L*5.43 (0.92)5.79 (0.70)5.49 (0.56)5.94† (0.78)5.19 (0.45)5.38 (0.77)5.20 (0.67)5.48 (0.76)
  • Data are presented as mean (SD) unless otherwise indicated. Patients with type 1 diabetes or latent autoimmune diabetes of adulthood were excluded.

  • *Geometric mean (approximate SD).

  • †Calculated from nonfasting HbA1c.