Prevalence and Predictors of Silent Gastroesophageal Reflux Disease in Patients with Hypertension

Table 4

Assignment table of variables in patients with hypertension.

Factors	Variables	Explanation of assignments
Higher education level	X1	<12 = 0, ≥12 = 1
Abdominal obesity	X2	No = 0, yes = 1
Calcium channel blockers	X3	Without prescription = 0, prescription = 1
Controlled hypertension	X4	Uncontrolled = 0, controlled = 1
Untreated hypertension	X5	Treated = 0, untreated = 1
Silent GERD	Y	Hypertension = 0, hypertension with silent GERD = 1