Table 3. Proportion and odd ratios (ORs) of abnormally prolonged QTc interval according to SD-PPG tertiles (95% CI).

SD-PPG tertiles	T1	T2	T3	P for trend
N	972	970	962	–
Abnormally prolonged QTc, n(%)	106(10.9)	137(14.1)	255(26.5)	0.000
Model 1	1- reference	1.34(1.03–1.76)	2.96(2.31–3.79)	0.000
Model 2	1- reference	1.42(1.08–1.88)	2.77(2.15–3.56)	0.000
Model 3	1- reference	1.43(1.06–1.91)	2.80(2.14–3.65)	0.000
Model 4	1- reference	1.15(0.83–1.61)	2.63(1.93–3.59)	0.000
Model 5	1- reference	1.15(0.82–1.60)	2.62(1.92–3.57)	0.000

Model 1: unadjusted model. Model 2: adjusted for age and sex. Model 3: additionally adjusted for diabetic duration, BMI, SBP, DBP, smoking, statins medication use and hypertension. Model 4: additionally adjusted for UA, TG, TC, HDLC, LDLC, HOMA-IR, HbA1c, M-FPG, M-PPG and SD-FPG. Model 5: additionally adjusted for lifestyle intervention and insulin, insulin-sensitiszers and insulin-secretagogues use.