Detection of Secondary Causes and Coexisting Diseases in Hypertensive Patients: OSA and PA Are the Common Causes Associated with Hypertension

Table 2

Detection of secondary causes and coexisting diseases in hypertensive patients.

Diseases		Total, %	patients with further evaluation, %
		Secondary causes and coexisting diseases	1186	29.7	39.5
OSA	742	18.6	24.7
PA	175	4.4	5.8
PA + OSA	146	3.7	4.9
RPD	54	1.3	1.8
Hypothyroidism	31	0.8	1.1
RAS	25	0.6	0.8
PHEO	3	0.08	0.1
CS	4	0.1	0.1
Hyperthyroidism	3	0.08	0.1
Others	3	0.08	0.1

PA, primary aldosteronism; OSA, obstructive sleep apnea; RPD, renal parenchymal disease; RAS, renal artery stenosis; PHEO, pheochromocytoma; CS, Cushing’s syndrome; others include one Liddle’s syndrome, one aortic coarctation, and one multicystic ovary syndrome.