Evaluation of the applicability of deep breathing test in the diagnosis of hypertension with white-coat effect in Chinese patients in primary care

Table 3 Deep breathing test results in all patients (N = 178)

BP response to the deep breathing test	White-coat effect		p value
BP response to the deep breathing test	Present (n = 122)	Absent (n = 56)	p value
Mean SBP drop (mmHg)	15.5 (SD 12.0)	13.3 (SD 11.7)	0.247
Mean DBP drop (mmHg)	4.4 (SD 5.2)	3.8 (SD 4.3)	0.436
Deep breathing test operating characteristics	Area under ROC curve	95% confidence interval (CI)	p value
SBP change	0.52	0.43–0.61	0.611
DBP change	0.53	0.44–0.62	0.552

BP blood pressure, SBP systolic blood pressure, DBP diastolic blood pressure, DBT deep breathing test, ROC Receiver operating characteristic

ISSN: 2056-5909