Table 6 Bivariate and multivariate analysis determinants of non-adherence to antihypertensive medication

Age

–

–

Gender

0.8 (0.5–1.3)

–

–

Education

 No formal

1.0 (0.5–2.3)

–

–

 Primary

1.9 (0.9–4.2)

–

–

 Secondary

1.5 (0.7–3.3)

–

–

 Tertiary

Occupation

 Unemployed/retired

0.9 (0.6–1.4)

–

–

 Employed

Duration of hypertension, year

 Unknown

0.6 (0.3–1.5)

–

–

 ≥5

1.3 (0.8–1.9)

–

–

 <5

Duration of antihypertensive treatment, year

 Unknown

0.9 (0.4–1.9)

–

–

 ≥5

1.2 (0.8–1.9)

–

–

 <5

Control of blood pressure n = 390

 Uncontrolled

1.8 (1.1–3.2)

2.0 (1.1–3.7)

Experience of medication side effects

1.9 (1.3–2.9)

2.2 (1.4–3.3)

Experience of physical symptoms due to hypertension

1.4 (0.9–2.1)

–

–

Presence of Co-morbidity

1.2 (0.8–1.7)

–

–

Taking of non-prescribed medications

1.7 (1.1–2.8)

2.2 (1.2–3.8)

Poor knowledge of risk factors related to HTN

0.7 (0.5–1.1)

–

–

Poor knowledge of HTN related complications

2.5 (1.4–4.3)

2.4 (1.4–4.4)

Poor knowledge of treatment benefit

1.5 (0.7–3.1)

–

–

Beliefs that BP medications are helpful in controlling BP

1.3 (0.7–2.3)

–

–

Accept hypertensive status

1.2 (0.7–2.0)

–

–

Perception of HTN gravity

1.1 (0.6–1.8)

–

–

Perception of HTN related complications gravity

1.2 (0.7–2.0)

–

–

Perception of patient-provider relationships

2.0 (0.8–4.9)

–

–

Lack of patient education performed in the healthcare facility

1.9 (1.3–2.9)

1.7 (1.1–2.7)

Perception of treatment cost

0.9 (0.6–1.6)

–

–

Healthcare facility accessible geographically

0.9 (0.6–1.5)

–

–

Unavailability of antihypertensive medications in the healthcare facilities

2.6 (1.3–5.2)

2.8 (1.4–5.5)