Table 3 Results of univariate and multivariate analyses examining the relationship between high adherence to antihypertensive medication, as measured by the Morisky scale, and factors explored in the study
FACTORN (%), N = 527ODDS RATIO (95% CI)
UNIVARIATE MODEL*FINAL MULTIVARIATE MODEL
Age, y
 • <5577 (14.6)1.001.00
 • 55-64166 (31.5)1.93 (1.09 to 3.42)1.92 (1.07 to 3.43)
 • 65-74173 (32.8)2.97 (1.64 to 5.39)2.71 (1.48 to 4.95)
 • ≥ 75111 (21.1)5.08 (2.43 to 10.61)4.56 (2.16 to 9.61)
Sex
 • Male272 (51.6)1.00NS
 • Female255 (48.4)1.46 (0.96 to 2.20)
Education
 • Grade 8-11238 (45.2)1.04 (0.59 to 1.85)NS
 • Completed high school93 (17.6)1.00
 • More than high school176 (33.4)0.85 (0.47 to 1.53)
 • Unknown20 (3.8)5.54 (0.70 to 43.86)
Duration of hypertension, y
 • < 5113 (21.4)1.00NS
 • 5-10148 (28.1)1.44 (0.82 to 2.52)
 • > 10262 (49.7)1.63 (0.98 to 2.70)
 • Unknown4 (0.8)> 999.99 (< 0.001 to > 999.99)
Prescription medications
 • 1-6275 (52.2)1.001.00
 • ≥ 7252 (47.8)1.69 (1.12 to 2.57)1.54 (1.00 to 2.38)
BP self-monitoring
 • No204 (38.7)1.00NS
 • Sometimes228 (43.3)1.05 (0.68 to 1.63)
 • Often95 (18.0)2.10 (1.08 to 4.09)
Healthy lifestyle
 • Exercise and healthy diet228 (43.3)1.001.00
 • Either exercise or healthy diet231 (43.8)1.23 (0.78 to 1.97)1.10 (0.69 to 1.76)
 • Neither exercise nor healthy diet68 (12.9)0.53 (0.29 to 0.95)0.53 (0.29 to 0.98)
  • BP—blood pressure, NS—not significant.

  • * Significant results (P ≤ .10) of the univariate analyses examining the unadjusted relationships between high adherence on the Morisky scale and patient factors.

  • Significant results (P ≤ .05) of the multivariate analyses examining the adjusted relationships between high adherence on the Morisky scale and patient factors.