Table 3

Sensitivity analyses

OR (95% CI)p Value
(A) Association between mortality and hypoglycaemia, whether or not requiring medical help
No hypoglycaemia during follow-up(Reference)
Only mild hypoglycaemia during follow-up0.37 (0.23 to 0.59)<0.01
Severe hypoglycaemia during follow-up, but no medical help reported0.57 (0.23 to 1.46)0.24
Severe hypoglycaemia during follow-up, requiring medical help1.38 (0.31 to 6.11)0.68
(B) Association between mild and severe hypoglycaemia, whether or not combined with mild hypoglycaemia, and mortality
No hypoglycaemia during follow-up(Reference)
Only mild hypoglycaemia during follow-up0.37 (0.23 to 0.59)<0.01
Mild and severe hypoglycaemia during follow-up0.39 (0.09 to 1.62)0.19
Only severe hypoglycaemia during follow-up1.00 (0.39 to 2.58)1.00
(C) Dose–response association between mild hypoglycaemia and mortality
Number of events reported during follow-up*
 No hypoglycaemia during follow-up(Reference)
 ≤2 mild hypoglycaemic events per year0.52 (0.23 to 1.16)0.11
 3–10 mild hypoglycaemic events per year0.52 (0.22 to 1.22)0.13
 12–32 mild hypoglycaemic events per year0.38 (0.16 to 0.88)0.03
 ≥33 mild hypoglycaemic events per year0.14 (0.04 to 0.59)<0.01
Number of events reported at baseline†
 No hypoglycaemia(Reference)
 ≤2 mild hypoglycaemic events0.72 (0.30 to 1.68)0.44
 3–11 mild hypoglycaemic events0.66 (0.26 to 1.67)0.38
 12–48 mild hypoglycaemic events0.29 (0.11 to 0.81)0.02
 ≥52 mild hypoglycaemic events0.30 (0.09 to 0.97)0.04
  • Table 3C: For both models, only patients who did not report severe hypoglycaemia were taken into account.

  • *For this analysis, the average number of mild hypoglycaemic events per year was calculated by dividing the total number of reported mild events during follow-up by the number of measurements. This number was categorised based on quartiles.

  • †For this analysis, the number of hypoglycaemic events reported at baseline was categorised based on quartiles.