Table 1.
Sociodemographic and Other Characteristics by SDM and BP Group, Total and Interview Sample
| Characteristics | High SDM | Lower SDM | P value | Total sample | Interview sample | ||
|---|---|---|---|---|---|---|---|
| Reduction in SBP ≥10 mm Hg | Reduction in SBP <10 mm Hg | Reduction in SBP ≥10 mm Hg | Reduction in SBP <10 mm Hg | ||||
| Sample, n (%) | 338 (27.9) | 198 (16.3) | 402 (33.2) | 274 (22.6) | 1212 (100) | 36 (100) | |
| Sociodemographic | |||||||
| Age, y, mean ±SD | 59.8 (11.8) | 62.5 (10.4) | 61.1 (11.9) | 61.6 (11.9) | 0.055 | 61.1 (11.7) | 61 (12.6) |
| Male sex, n (%) | 130 (26.1) | 78 (15.7) | 166 (33.3) | 124 (24.9) | 0.366 | 498 (41.1) | 11 (30.6) |
| Race and ethnicity | 0.001* | ||||||
| NL Black participants | 198 (28.7) | 127 (18.4) | 230 (33.3) | 135 (19.6) | 690 (56.9) | 13 (36.1) | |
| NL White participants | 110 (25.2) | 53 (12.1) | 153 (35.0) | 121 (27.7) | 437 (36.1) | 11 (30.6) | |
| Latino participants | 30 (35.3) | 18 (21.2) | 19 (22.4) | 18 (21.2) | 85 (7.0) | 12 (33.3) | |
| Education, n (%) | <0.001* | ||||||
| <High school | 65 (32.0) | 46 (22.7) | 49 (24.1) | 43 (21.2) | 203 (16.8) | 9 (25.0) | |
| High school | 170 (30.1) | 88 (15.6) | 198 (35.0) | 109 (19.3) | 565 (46.7) | 15 (41.7) | |
| >High school | 102 (23.1) | 63 (14.3) | 155 (35.1) | 121 (27.4) | 441 (36.5) | 12 (33.3) | |
| Income, n (%) | |||||||
| <20k | 71 (30.1) | 39 (16.5) | 78 (33.1) | 48 (20.3) | 0.667 | 236 (19.5) | 5 (13.9) |
| $20k to $39k | 51 (26.3) | 41 (21.1) | 59 (30.4) | 43 (22.2) | 194 (16.0) | 5 (13.9) | |
| ≥40k | 127 (27.0) | 68 (14.5) | 159 (33.8) | 116 (24.7) | 470 (38.8) | 12 (33.3) | |
| Did not report | 89 (28.5) | 50 (16.0) | 106 (34.0) | 67 (21.5) | 312 (25.7) | 14 (38.9) | |
| Employed, n (%) | 133 (27.6) | 75 (15.6) | 160 (33.2) | 114 (23.7) | 0.860 | 482 (39.9) | 12 (33.3) |
| Married, n (%) | 141 (27.8) | 75 (14.8) | 166 (32.7) | 125 (24.7) | 0.423 | 507 (41.9) | 14 (38.9) |
| Have health insurance, n (%) | 335 (27.8) | 197 (16.3) | 401 (33.2) | 274 (22.7) | 0.743 | 1207 (99.8) | 36 (100) |
| Clinical | |||||||
| SBP baseline, mean±SD | 154.7 (13.0) | 148.8 (9.0) | 154.5 (13.0) | 147.4 (8.2) | <0.001* | 152.0 (11.9) | 151.4 (11.0) |
| DBP baseline, mean±SD | 86.2 (12.3) | 82.9 (12.0) | 85.5 (12.0) | 82.3 (11.5) | <0.001* | 84.5 (12.1) | 83.5 (10.3) |
| SBP change, mean±SD | −26.3 (13.6) | 3.1 (12.9) | −25.1 (13.2) | 3.2 (12.5) | −14.4 (19.2) | −13.5 (19.8) | |
| DBP change, mean±SD | −11.5 (11) | 0 (11.4) | −9.6 (10.4) | 0.5 (11.1) | −6.3 (12.1) | −4.14 (11.0) | |
| Health status, mean±SD† | 45.3 (9.2) | 45.0 (9.4) | 44.4 (8.5) | 45.1 (8.7) | 0.535 | 44.9 (8.9) | 44.4 (7.9) |
| Health status, n (%) | 0.744 | ||||||
| Poor | 48 (28.9) | 26 (15.7) | 55 (33.1) | 37 (22.3) | 166 (13.7) | 4 (11.1) | |
| Fair | 63 (22.7) | 50 (18.0) | 99 (35.6) | 66 (23.7) | 278 (22.9) | 9 (25.0) | |
| Good | 110 (29.3) | 57 (15.2) | 127 (33.9) | 81 (21.6) | 375 (30.9) | 13 (36.1) | |
| Very good and excellent | 117 (29.8) | 65 (16.5) | 121 (30.8) | 90 (22.9) | 393 (32.4) | 10 (27.8) | |
| Other | |||||||
| Knows that high BP means hypertension, n (%) | 251 (26.0) | 161 (16.7) | 316 (32.7) | 237 (24.6) | 0.002* | 965 (79.6) | 27 (75.0) |
| High BP is a serious health concern, n (%) | 216 (30.2) | 125 (17.5) | 225 (31.5) | 149 (20.8) | 0.034* | 715 (59.0) | 23 (63.9) |
| Taking BP medication is very important, n (%) | 314 (28.7) | 187 (17.1) | 352 (32.2) | 240 (22.0) | 0.004* | 1093 (90.3) | 34 (94.4) |
| Patient activation, mean±SD‡ | 67.8 (17.2) | 69.0 (17.0) | 63.7 (15.0) | 65.9 (14.9) | <0.001* | 66.2 (16.1) | 62.7 (17.3) |
| Adequate health literacy§ | 236 (27.8) | 141 (16.6) | 280 (32.9) | 193 (22.7) | 0.980 | 850 (70.1) | 24 (66.7) |
| ecision‐making | |||||||
| Shared decision‐making, mean±SD|| | 9 (0) | 9 (0) | 5.8 (2.7) | 5.7 (2.9) | <0.001* | 7.2 (2.6) | 7.6 (2.5) |
BP indicates blood pressure; DBP, diastolic blood pressure; high SDM, CollaboRATE sum score 27; Lower SDM, CollaboRATE sum score ≤26; NL, non‐Latino; SBP, systolic blood pressure; and SDM, shared decision‐making.
Statistically significant, P value <0.05, comparing the 4 SDM and BP groups.
Patient‐Reported Outcomes Measurement Information System Global Physical Health, T‐scores ≤35: poor; 35–42: fair; 42–50: good; 50–58: very good; and >58: excellent.
Patient Activation Measure, scores 0–100, higher scores indicate higher activation.
Screening Questions for Limited Health Literacy.
CollaboRATE score, range from 0 to 9, higher scores indicate greater shared decision‐making. Per high SDM group definition, participants had to have SDM score of 9 (maximum score) to be included.