Table 1.
Demographics and clinical characteristics stratified by number of medications and adherence by assay (N = 261)*
| Prescribed <3 BP Medications | Prescribed ≥3 BP Medications | |||||
|---|---|---|---|---|---|---|
| Patient Characteristics | Adherent (N = 139) | Non-adherent (N = 37) | P-value | Adherent (N = 50) | Non-adherent (N = 35) | P-value |
| Age, mean (sd) years | 58.9 (11.4) | 54.5 (13.1) | 0.05 | 62.5 (9.4) | 61.0 (10.4) | 0.44 |
| median (IQR) | 58 (52, 67) | 54 (47, 64) | 63 (57, 68) | 61 (53, 67) | ||
| Female, no. (%) | 70 (50.4) | 19 (51.4) | 0.92 | 27 (54.0) | 23 (65.7) | 0.28 |
| White, no. (%) | 92 (66.2) | 21 (56.8) | 0.29 | 33 (66.0) | 19 (54.3) | 0.28 |
| Non-Hispanic, no. (%) | 136 (98.6) | 35 (94.6) | 0.61 | 50 (100.0) | 35 (100.0) | – |
| Insurance, no. (%) | 0.64 | 0.28 | ||||
| Private | 59 (42.5) | 14 (37.8) | 17 (34.0) | 16 (45.7) | ||
| Medicare/Medicaid/Federal | 76 (54.7) | 22 (59.5) | 33 (66.0) | 19 (54.3) | ||
| Self-pay, unknown | 4 (2.9) | 1 (2.7) | 0 (0.0) | 0 (0.0) | ||
| Atrial Fibrillation, no. (%) | 16 (11.5) | 2 (5.4) | 0.94 | 5 (10.0) | 6 (17.1) | 0.90 |
| Diabetes, no. (%) | 45 (32.4) | 14 (37.8) | 0.53 | 22 (44.0) | 18 (51.4) | 0.50 |
| Chronic Renal | 33 (23.7) | 10 (27.0) | 0.68 | 15 (30.0) | 7 (20.0) | 0.30 |
| Insufficiency, no. (%) | ||||||
| Elixhauser, mean (sd) | 13.0 (10.6) | 16.2 (13.5) | 0.25 | 15.1 (11.3) | 10.4 (11.4) | 0.05 |
| median (Q1, Q3) | 11 (4, 21) | 15 (5, 22) | 14.5 (5, 22) | 9 (2, 17) | ||
| BMI (kg/meter2), | 0.23 | 0.01 | ||||
| mean (sd) | 31.4 (9.3) | 33.1 (9.6) | 32.6 (9.4) | 36.8 (9.5) | ||
| median (IQR) | 29.5(24.8,35.3) | 31.5(27.3,36.8) | 30.7(25.8,36.8) | 36.7(31.0,41.3) | ||
| Number of medications by patient report, | 0.03 | 0.06 | ||||
| 7.7 (4.9) | 9.7 (5.2) | 10.2 (5.0) | 8.7 (5.5) | |||
| mean (sd) | 7 (4, 10) | 8 (6, 13) | 9.5 (6, 12) | 7 (6, 10) | ||
| median (IQR) | ||||||
| Number of antihypertensives by patient report, | 0.73 | 0.92 | ||||
| 1.6 (1.0) | 1.4 (0.7) | 2.6 (1.1) | 2.6 (1.0) | |||
| 1 (1, 2) | 1 (1, 2) | 3 (2, 3) | 3 (2, 3) | |||
| mean (sd) | ||||||
| median (IQR) | ||||||
| Highest Level of Education | 0.62 | 0.85 | ||||
| mean (sd) years | 12.3 (1.8) | 12.2 (1.7) | 12.4 (1.9) | 12.5 (1.9) | ||
| median (IQR) | 13 (12, 13) | 12 (12, 13) | 13 (12, 14) | 13 (12, 14) | ||
| Health Literacy Level | 0.67 | 0.31 | ||||
| mean (sd) | 13.2 (3.0) | 13.1 (3.0) | 13.2 (2.8) | 13.7 (2.2) | ||
| median (IQR) | 15 (12, 15) | 15 (12, 15) | 15 (13, 15) | 15 (13, 15) | ||
| Numeracy | 0.06 | 0.05 | ||||
| mean (sd) | 32.6 (8.0) | 30.0 (7.4) | 32.2 (8.3) | 29.0 (8.3) | ||
| median (IQR) | 33 (27, 39) | 31.5 (24, 36) | 35 (28, 38) | 31 (22, 34) | ||
| Hypertension >10 years | 77 (55.8) | 19 (51.43) | 0.99 | 42 (84.0) | 25 (71.4) | 0.14 |
| no. (%) | ||||||
*
P-values by Kruskall-Wallis for continuous variables, by the nonparametric test for trends across groups for categorical variables
Abbreviations: BP, blood pressure; sd, standard deviation; no., number; BMI, body mass index; IQR, interquartile range