Table 1.
Participant Demographics (N = 195 Patients Randomized)
| Mean (SD) or Frequency (%) | ||||
|---|---|---|---|---|
|
| ||||
| Characteristic | Usual Care | Reminder Calls | MI | Difference |
| N | 72 | 58 | 65 | |
| Age (years) | M = 64.4 (11.3) | M = 66.1 (11.8) | M = 65.4 (10.5) | ns |
| Gender – women | 46 (63.8%) | 39 (67.2%) | 41 (63.1%) | ns |
| men | 26 (36.2%) | 19 (32.8%) | 24 (36.9%) | |
| Race/Ethnicity – White | 46 (63.9%) | 43 (74.1%) | 47 (72.3%) | ns |
| African-American | 16 (22.2%)† | 11 (19.0%) | 9 (13.8%) | |
| Latino/Latina | 3 (4.1%)† | 1 (1.7%) | 3 (4.6%) | |
| Asian | 4 (5.6%) | 2 (3.4%) | 0 (0%) | |
| Native American | 2 (2.7%) | 0 (0%) | 0 (0%) | |
| unknown | 2 (2.8%) | 1 (1.7%) | 6 (9.2%) | |
| Education – no diploma | 3 (4.1%) | 3 (5.2%) | 6 (9.2%) | ns |
| high school degree | 6 (8.3%) | 14 (24.1%) | 10 (15.4%) | |
| college degree | 47 (65.3%) | 24 (41.4%) | 33 (50.8%) | |
| master’s degree | 11 (15.3%) | 11 (19.0%) | 13 (20.0%) | |
| doctorate | 2 (2.8%) | 2 (3.4%) | 3 (4.6%) | |
| unknown | 3 (4.1%) | 4 (6.9%) | 0 (0%) | |
| Employment – retired | 28 (41.8%) | 27 (50.9%) | 35 (58.3%) | ns |
| employed | 28 (41.8%) | 20 (37.7%) | 17 (28.3%) | |
| unemployed | 8 (11.9%) | 5 (9.4%) | 7 (11.7%) | |
| disabled | 3 (4.5%) | 1 (1.9%) | 1 (1.7%) | |
| unknown | 5 | 5 | 5 | |
| Marital Status – married | 42 (58.3%) | 29 (51.8%) | 45 (71.4%) | χ2 = 16.4, |
| single | 9 (12.5%) | 15 (26.8%) | 8 (12.7%) | p = .04, |
| widowed | 8 (11.1%) | 8 (14.3%) | 8 (12.7%) | ϕ = .29 |
| divorced | 12 (16.7%) | 4 (7.1%) | 2 (3.2%) | |
| unknown | 0 | 2 | 2 | |
| Number of Comorbidities | 3.5 (2.4) | 3.4 (2.2) | 3.4 (2.3) | ns |
| Number of Other Medications | 6.4 (5.1) | 6.7 (4.8) | 6.4 (4.7) | ns |
| Visual Field (log units) | −2.9 (3.8) | −3.5 (3.4) | −3.4 (3.9) | ns |
| Intra-Ocular Pressure (mm Hg) | 15.0 (4.2) | 15.3 (4.5) | 14.9 (3.5) | ns |
| Number of Doses per Day | 1.2 (0.5) | 1.1 (0.3) | 1.2 (0.5) | ns |
| Treatment Duration (months) | 35.1 (53.2) | 38.5 (54.0) | 54.3 (61.3) | ns |
| Baseline Motivation (1–5) | 4.37 (0.29) | 4.27 (0.51) | 4.40 (0.35) | ns |
†
One participant was both African-American and Latina, and is counted twice.
Note. MI = motivational interviewing; ns = not statistically significant