The overestimated prevalence of hypertension in a population survey: a cross-sectional study from Hebei province, China

Table 3 Predictive value of SBP/DBP in one-visit hypertension for true positive hypertension

Parameters	AUC	95% CI	P	Sensitivity (%)	Specificity (%)	Cut-off value
Total
SBP	0.60	0.54–0.67	0.002	50.41	70.28	147.50mmHg
DBP	0.73	0.67–0.79	0.000	61.16	77.83	95.50mmHg
Combination	0.73	0.68–0.79	0.000	72.73	66.51	0.33
Female
SBP	0.55	0.43–0.67	0.397	29.41	84.16	159.50mmHg
DBP	0.57	0.45–0.69	0.247	35.29	86.14	97.50mmHg
Combination	0.59	0.48–0.70	0.128	64.71	58.42	0.32
Male
SBP	0.65	0.58–0.73	0.000	49.43	81.08	147.50mmHg
DBP	0.80	0.74–0.86	0.000	68.97	81.98	95.50mmHg
Combination	0.81	0.75–0.87	0.000	72.41	79.28	0.36

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