Table 3.
Baseline comparison of intervention groups
| Characteristic | Peer leader (n = 219) | Seminar (n = 185) | P valuea |
|---|---|---|---|
| Male, no. (%) | 185 (84.5) | 168 (90.8) | 0.07 |
| Age, y, mean (SD) | 68.8 (10.0) | 67.4 (10.3) | 0.02 |
| White race, no. (%) | 214 (97.7) | 175 (94.6% | 0.12 |
| Education, no. (%) | |||
| ≤High school graduate | 70 (32.1) | 69 (37.3% | 0.08 |
| Some post high school | 88 (36.7) | 80 (43.2% | |
| College graduates | 60 (27.5) | 36 (19.5% | |
| Retired, no. (%) | 151 (69.0) | 127 (68.7) | 0.73 |
| Household income, no. (%) | |||
| <$20K | 11 (5.0) | 11 (6.5) | 0.2 |
| $20K to <$25K | 15 (6.9) | 20 (10.8) | |
| $25K to <$35K | 35 (16.0) | 29 (15.7) | |
| $35K to <$50K | 42 (19.2) | 33 (17.8) | |
| $50K to <$75K | 36 (16.4) | 34 (18.4) | |
| ≥$75K | 37 (16.9) | 27 (14.6) | |
| Refused/no answer | 43 (19.6) | 31 (16.8) | |
| Health insurance coverage, no. (%) | 213 (97.3) | 172 (93.0) | 0.09 |
| Patient Activation Measure, mean (SD) | 59.1 (14.6) | 56.2 (12.0) | 0.10 |
| Related comorbidity,b no. (%) | |||
| Diabetes mellitus | 61 (27.9) | 47 (25.4) | 0.86 |
| Coronary disease | 67 (30.6) | 53 (28.7) | 0.74 |
| Heart attack/myocardial infarction | 38 (17.4) | 27 (14.6) | 0.54 |
| Stroke | 15 (6.9) | 18 (9.7) | 0.23 |
| Renal disease | 11 (5.0) | 13 (7.0) | 0.41 |
| Baseline SBP, mean (SD) | 132.5 (14.1) | 136.9 (16.9) | 0.02 |
| Baseline DBP, mean (SD) | 71.3 (10.5) | 73.8 (12.1) | 0.08 |
| Controlled blood pressure,c no. (%) | 131 (59.8) | 89 (48.1) | 0.02 |
| Antihypertensive drugs, mean (SD) | 1.64 (1.1) | 1.52 (1.0) | 0.29 |
| BMI, kg/m2, mean (SD) | 30.8 (5.9) | 31.5 (6.0) | 0.01 |
| Weight, lb, mean (SD) | 207.2 (44.4) | 213.8 (43.5) | 0.28 |
Abbreviations: BMI, body mass index; BP, blood pressure; DBP, diastolic blood pressure; SBP, systolic blood pressure.
a P values from χ2, t tests or Wilcoxon rank-sum tests as appropriate.
bComorbidity reported by patient on baseline survey.
cControlled = BP <140/90mm Hg, unless with diabetes, then controlled = BP <130/80mm Hg.