Table 3.

Landmark analysis.

Period (Months)	Incidence Rate (95% CI)		aHR (95% CI)
	Control	DM
0–36	0.48 (0.39–0.59)	0.39 (0.28–0.55)	0.786 (0.528–1.168)
36–72	0.51 (0.39–0.66)	0.45 (0.3–0.67)	0.838 (0.507–1.387)
72–96	0.53 (0.32–0.89)	0.72 (0.39–1.35)	1.219 (0.531–2.798)
p value for time varying test			0.5541

CI: confidence interval, DM: diabetes mellitus, aHR: adjusted hazard ratio.