Table 1—

Selected baseline characteristics among prediabetic case patients and matched control subjects

Case patientsControl subjectsP value
n91273
Age (years)57.9 ± 11.054.2 ± 10.80.005
BMI (kg/m2)28.1 ± 5.226.9 ± 4.60.040
Waist (cm)91.9 ± 13.487.2 ± 12.50.003
Abdominal height (cm)21.2 ± 3.220.1 ± 3.20.005
Lifetime total pack-years (cigarettes)14.4 ± 22.69.1 ± 15.80.037
Physical activity (METs in past 7 days)259.1 ± 46.3262.4 ± 49.80.574
Glucose (mg/dl)94.2 ± 4.390.4 ± 5.4<0.001
HOMA3.4 ± 1.72.9 ± 1.50.011
ACR (mg/g)12.0 ± 37.47.3 ± 10.40.256
Cystatin C (mg/l)1.0 ± 0.20.9 ± 0.1<0.001
eGFR (ml/min per 1.73 m2)*83.0 ± 17.785.3 ± 17.00.275
Serum creatinine (g/l)0.8 ± 0.10.8 ± 0.10.579
Male sex (%)42.942.9
White (%)95.695.6
Education >12 years (%)59.371.10.038
Family history of diabetes (%)42.926.70.005
Hypertension (%)38.620.80.001
Family history of hypertension (%)39.335.70.549
Smoking (%)0.017
    Never37.451.8
    Ever62.648.2
Drinking (%)0.028
    Abstainer7.79.7
    Non-current30.820.4
    Non-daily50.564.7
    Daily11.05.2
  • Data are means ± SD or n (%).

  • *

    * eGFR = 186 × (serum creatinine−1.154) × (age−0.203) × 1.21 (if black) or × 0.742 (if female).

  • †Matching variable.