Table 3b:

Weighted population univariate and multivariate correlates of prolonged QTa interval

Characteristic	Univariate			Multivariate
	Relative Prevalence	95% CI	p-value	Adjusted Relative Prevalence	95% CI	p-value
Sex
Male	REF	REF		REF	REF
Female	1.5	0.9 – 2.6	0.136	1.2	0.7 – 2.0	0.450
Age
≤29	REF	REF		REF	REF
30 – 50	3.6	1.5 – 8.6	0.003	3.1	1.4 – 6.8	0.007
>50	4.4	1.8 – 10.6	0.001	3.3	1.3 – 7.9	0.009
BMI, mean ( kg/m2)
≤18.5	1.2	0.5 – 3.1	0.716	1.7	0.6 – 4.9	0.361
>18.5 – 24.9	REF	REF		REF	REF
25.0 – 29.9	1.3	−.5 – 3.4	0.625	1.4	0.4 – 4.5	0.607
≥30	2.0	0.7 – 5.8	0.183	1.3	0.3 – 4.7	0.715
HDL cholesterol, (mg/dL)
<40	REF	REF
40 -59	0.9	0.4 – 1.8	0.706
≥60	0.8	0.4 – 1.5	0.495
Current hypertension
<140/90 mmHg	REF	REF		REF	REF
≥140/90 mmHg	2.5	1.4 – 4.4	0.002	1.4	1.0 – 3.2	0.037
eGFR, ( ml/min/1.73mm2)
≥90	REF	REF		REF	REF
60 – 89	2.1	1.0 – 4.6	0.056	0.8	0.4 – 1.7	0.622
CRP, (mg/dL)
≤1	REF	REF		REF	REF
1-3	2.1	1.1 – 3.9	0.026	1.7	0.9 – 3.1	0.081
>3	1.8	0.9 – 3.9	0.118	1.2	0.5 – 2.5	0.707
HbA1c
Normal	REF	REF		REF	REF
Pre diabetes	2.2	1.1 – 4.4	0.019	1.0	0.5 – 1.9	0.952
Diabetes	1.7	0.6 – 4.5	0.321	2.0	0.7 – 5.5	0.184
Physical Activity Category
Inactive	REF	REF		REF	REF
Minimal	0.8	0.3 – 2.3	0.738	0.7	0.3 – 2.1	0.560
Active	0.6	0.3 – 1.2	0.143	0.7	0.4 – 1.4	0.360
Cigarette smoking
Never	REF	REF
Former	1.2	0.7 – 2.0	0.438
Current	1.5	0.6 – 3.4	0.330