Table 2.
Baseline Demographic and Clinical Characteristics of Patients in the Trial
| How message arm | Why message arm | Usual care arm | p-value | |
|---|---|---|---|---|
| N (%) | 1249 (34.08%) | 1199 (32.71%) | 1217 (33.21%) | |
| Age, mean (SD) | 53.80 (17.36) | 53.23 (17.46) | 53.40 (16.96) | 0.703 |
| Female, N (%) | 733 (58.69%) | 697 (58.13%) | 736 (60.48%) | 0.471 |
| Partnered, N (%) | 675 (55.19%) | 655 (55.74%) | 702 (58.74%) | 0.168 |
| Race, N (%) | 0.678 | |||
| Asian | 48 (3.84%) | 49 (4.09%) | 51 (4.19%) | |
| Black/African American | 91 (7.29%) | 74 (6.17%) | 99 (8.13%) | |
| White | 766 (61.33%) | 724 (60.38%) | 718 (59.00%) | |
| Multiple/Other | 289 (23.14%) | 286 (23.85%) | 287 (23.58%) | |
| Unavailable/declined | 55 (4.40%) | 66 (5.50%) | 62 (5.09%) | |
| Ethnicity, N (%) | 0.322 | |||
| Hispanic | 322 (25.78%) | 324 (27.02) | 329 (27.03%) | |
| Non-Hispanic | 830 (66.45%) | 769 (64.14%) | 768 (63.11%) | |
| Unknown | 97 (7.77%) | 106 (8.84%) | 120 (9.86%) | |
| Preferred language, N (%) | 0.044 | |||
| English | 1004 (80.38) | 912 (76.06) | 930 (76.42%) | |
| Spanish | 179 (14.33%) | 214 (17.85%) | 223 (18.32%) | |
| Other | 66 (5.28%) | 73 (6.09%) | 64 (5.26%) | |
| Clinic | 0.005 | |||
| 1 | 531 (42.51%) | 511 (42.62%) | 463 (38.04%) | |
| 2 | 529 (42.35%) | 527 (43.95%) | 528 (43.39%) | |
| 3 | 189 (15.13%) | 161 (13.43%) | 226 (18.57%) | |
| Scheduled visit weekday, N (%) | 0.173 | |||
| Monday | 245 (19.62%) | 259 (21.60%) | 237 (19.47%) | |
| Tuesday | 313 (25.06%) | 275 (22.94%) | 292 (23.99%) | |
| Wednesday | 241 (19.30%) | 258 (21.52%) | 284 (23.34%) | |
| Thursday | 255 (20.42%) | 225 (18.77%) | 208 (17.09%) | |
| Friday | 195 (15.61%) | 182 (15.18%) | 196 (16.11%) | |
| Baseline vaccinations, N (%) | ||||
| Flu shot in past year (N = 3665) | 582 (46.60%) | 542 (45.20%) | 537 (44.12%) | 0.465 |
| Ever received pneumonia vaccine (if age > 65) (N = 973) | 306 (91.62%) | 287 (88.58%) | 285 (90.48%) | 0.417 |
| Ever received a zoster vaccine (if age > 50) (N = 2101) | 374 (51.52%) | 329 (48.24%) | 322 (46.46%) | 0.160 |
| Tetanus vaccine in last 10 years (N = 3665) | 997 (79.82%) | 962 (80.23%) | 985 (80.94%) | 0.782 |
| Baseline utilization | ||||
| No. of medications, mean (SD) | 13.62 (17.83) | 13.77 (19.65) | 13.35 (18.34) | 0.856 |
p-values represent results of chi-square tests for categorical variables and ANOVA for continuous variables across all 3 arms
Abbreviation: SD standard deviation, Flu Influenza, No. number. 72 patients had missing data for partnered variable and were classified as “not partnered