From:  Associations between self-reported adherence to antihypertensive medications and potential mechanisms of behavior change in a general outpatient sample

 Participant characteristics by self-reported adherence status.

VariableTotal sample (N = 101)High adherence (N = 84)Low adherence (N = 17)p-Value
Age: mean (SD)61.7 (13.1)63.2 (12.7)55.1 (13.8)0.034
GenderMale40 (39.6%)38 (45.2%)2 (11.8%)0.004
Female60 (59.4%)46 (54.8%)14 (82.4%)
Other1 (1.0%)0 (0.0%)1 (5.8%)
Hispanic8 (7.9%)8 (9.5%)0 (0.0%)0.405
RaceWhite67 (66.3%)62 (73.8%)5 (29.4%)0.001
Black16 (15.8%)10 (11.9%)6 (35.2%)
American Indian0 (0.0%)0 (0.0%)0 (0.0%)
Asian13 (12.9%)9 (10.7%)4 (23.5%)
Pacific Islander0 (0.0%)0 (0.0%)0 (0.0%)
More than 12 (1.9%)1 (1.2%)1 (5.8%)
Other2 (1.9%)2 (2.4%)0 (0.0%)
Declined1 (0.9%)0 (0.0%)1 (5.8%)
Spanish primary language1 (0.9%)1 (1.2%)0 (0.0%)0.999
Insured100 (99.0%)84 (100.0%)16 (94.1%)0.373
Potential MoBC measures
MASES3.19 (0.40)3.28 (0.28)2.68 (0.53)< 0.001
TSRQ autonomous6.41 (1.20)6.48 (1.20)6.03 (1.17)0.176
TSRQ controlled3.50 (1.59)3.42 (1.66)3.91 (1.18)0.172
TSRQ amotivation3.02 (1.60)3.03 (1.60)3.00 (1.64)0.951
SRBAI22.08 (6.56)22.30 (6.74)20.80 (5.48)0.319
Hypertension knowledge7.98 (1.06)8.06 (1.09)7.56 (0.81)0.045
Barriers to adherence
Medication Adherence Reasons6.64 (1.03)6.87 (0.37)5.44 (2.10)0.016

p-Values generated using independent samples t-tests for continuous variables and Chi-squared tests for categorical variables; MASES: Medication Adherence Self-Efficacy Scale; TSRQ: Treatment Self-Regulation Questionnaire; SRBAI: Self-Report Behavioral Automaticity Index.