Table 1.

Plasma insulin and c-peptide levels according to case/control status

HormoneCases
Controls
P*
nMedian (range)nMedian (range)
Insulin (μU/mL)
    Fasting only2087.22 (5.23-11.89)4097.50 (5.48-12.48)0.57
c-Peptide (ng/mL)
    All3161.46 (0.84-3.02)6291.49 (0.84-3.19)0.75
    Fasting only2101.36 (0.77-2.42)4101.35 (0.81-2.35)0.88
  • * P from mixed-effects regression models comparing cases with controls, controlling for matching factors (two sided).

  • From the median of the bottom quartile (12.5%) to the median of the top quartile (87.5%).