Table 2. Multivariate simultaneous logistic regression analysis of risk factors associated with poor blood pressure control in older persons with hypertension.

Factors	OR	95% CI	p Value
Education level
Less than secondary education	1.703	1.150, 2.521	0.008
Secondary or higher education	1
Number of anti-hypertensive agents
1	1
2	1.480	0.929, 2.359	0.099
≥3	2.007	1.116, 3.608	0.020

Control for staying alone status, smoking status, group of hypertension duration, total number of medications group