Table 2.
Bivariate analyses of rates of response to recruitment requests by contact method a.
| Variables | Text (n = 548) | Call (n = 1132) | Total (n = 1680) | |||
|---|---|---|---|---|---|---|
| Responded | p-Value | Responded | p-Value | Responded | p-Value | |
| Age | 0.03 | 0.97 | 0.37 | |||
| 21–44 | 19/381 (5.0%) | 187/704 (26.6%) | 206/1085 (19.0%) | |||
| 45–69 | 13/151 (8.6%) | 101/388 (26.0%) | 114/539 (21.2%) | |||
| 70+ | 3/16 (18.8%) | 11/40 (27.5%) | 14/56 (4.2%) | |||
| Patient Gender | 0.28 | 0.78 | 0.57 | |||
| Male | 18/332 (5.4%) | 182/697 (26.1%) | 200/1029 (19.4%) | |||
| Female | 17/216 (7.9%) | 117/434 (27.0%) | 134/650 (20.6%) | |||
| Latino Ethnicity | <0.001 | 0.52 | 0.01 | |||
| Central/South American | 7/11 (63.6%) | 30/112 (26.8%) | 37/123 (30.1%) | |||
| Caribbean | 1/38 (2.6%) | 19/76 (25.0%) | 20/114 (17.5%) | |||
| Mexican/Chicano | 2/2 (100%) | 11/50 (22.0%) | 13/52 (25.0%) | |||
| Other Latino | 25/497 (5.0%) | 238/893 (26.7%) | 263/1390 (18.9%) | |||
| Day of the Week b | 0.18 | 0.01 | <0.001 | |||
| Monday | 7/136 (5.1%) | 3/25 (12.0%) | 10/161 (6.2%) | |||
| Tuesday | 24/296 (8.1%) | 78/274 (28.5%) | 102/570 (17.9%) | |||
| Wednesday | 4/116 (3.4%) | 69/211 (32.7%) | 73/327 (22.3%) | |||
| Thursday | - | 22/84 (26.2%) | 22/84 (26.2%) | |||
| Friday | - | 58/190 (30.5%) | 58/190 (30.5%) | |||
| Saturday | - | 69/348 (19.8%) | 69/348 (19.8%) | |||
| Time of Day c | 0.48 | 0.63 | <0.001 | |||
| 8:30 a.m.–11:29 a.m. | - | 54/189 (28.6%) | 54/189 (28.6%) | |||
| 11:30 a.m.–2:29 p.m. | 17/306 (5.6%) | 93/376 (24.7%) | 110/682 (16.1%) | |||
| 2:30 p.m.–5:29 p.m. | 17/241 (7.1%) | 124/478 (25.9%) | 141/719 (19.6%) | |||
| 5:30 p.m.–8:00 p.m. | - | 28/88 (31.8%) | 28/88 (31.8%) | |||
| Week of the Month | 0.01 | 0.72 | 0.82 | |||
| Week 1 | 7/136 (5.1%) | 69/269 (25.7%) | 76/405 (18.8%) | |||
| Week 2 | 2/114 (1.8%) | 96/349 (27.5%) | 98463 (21.2%) | |||
| Week 3 | 7/147 (4.8%) | 66/234 (28.2%) | 73/381 (19.2%) | |||
| Week 4 | 19/151(12.6%) | 68/280 (24.3%) | 87/431 (20.2%) | |||
| Contact Method | <0.001 | |||||
| Call | - | - | 299/1132 (26.4%) | |||
| Text | - | - | 35/548 (6.4%) | |||
| Text Type | 0.90 | |||||
| Scarcity | 7/180 (3.9%) | - | - | |||
| Social Norms | 7/165 (4.2%) | - | - | |||
| Threat/Self- Efficacy | 9/186 (4.8%) | - | - | |||
a Fisher’s exact probability test was used in instances of one or more of the cells having an expected frequency of five or less. b Thursday, Friday, and Saturday were not included in the analysis given that no texts were sent on these days. c 8:30 a.m.–11:29 a.m. and 5:30 p.m.–8:00 p.m. were not included in the analysis given that no texts were sent during these times.