Table 2—

Age-adjusted association of the ponderal index and body weight at birth categorized into thirds with fasting serum insulin and blood glucose levels and insulin sensitivity

Ponderal index categoriesInsulin, glucose, and index valuesBirth weight categoriesInsulin, glucose, and index values
Fasting serum insulin levels (mU/l)
 <26.31 kg/m312.0 (11.0–13.0)<3,400 g12.0 (11.0–13.0)
 26.31–27.72 kg/m310.5 (9.4–11.6)3,400–3,780 g10.5 (9.5–11.6)
 >27.72 kg/m310.3 (9.3–11.3)>3,780 g10.3 (9.2–11.3)
P value for effect0.036P value for effect0.034
P value for trend0.018P value for trend0.005
Fasting blood glucose levels (mmol/l)
 <26.31 kg/m34.68 (4.60–4.76) mg/dl, 84.3<3,400 g4.68 (4.60–4.76) mg/dl, 84.3
 26.31–27.72 kg/m34.56 (4.48–4.65) mg/dl, 82.23,400–3,780 g4.55 (4.47–4.63) mg/dl, 82.0
 >27.72 kg/m34.50 (4.42–4.58) mg/dl, 81.1>3,780 g4.50 (4.42–4.58) mg/dl, 81.1
P value for effect0.005P value for effect0.004
P value for trend0.001P value for trend0.004
Insulin sensitivity index
 <26.31 kg/m30.483 (0.473–0.492)<3,400 g0.481 (0.472–0.490)
 26.31–27.72 kg/m30.495 (0.485–0.505)3,400–3,780 g0.495 (0.486–0.505)
 >27.72 kg/m30.500 (0.491–0.510)>3,780 g0.502 (0.493–0.511)
P value for effect0.021P value for effect0.002
P value for trend0.008P value for trend<0.001
  • Data are means (95% CI).