Table 4.
Responses to questions about glaucoma therapy and adherence with comparison between adherent and nonadherent patients in the Travatan Dosing Aid (TDA) study (derivation cohort)
| Adherent (n = 109) |
Non-adherent (n = 87) |
p-value | |
|---|---|---|---|
| Measured adherence (%), mean ± SD | 88.0 (5.7) | 49.6 (20.6) | <0.001 |
| Reported adherence last month (%), mean ± SD | 96.7 (11.7) | 92.9 (17.1) | 0.071 |
| Past 2-week glaucoma drop use, n(%) | |||
| Every day | 86 (79.6) | 54 (65.1) | 0.053 |
| All but one or two | 17 (15.7) | 19 (22.9) | |
| Not for > 2 days | 5 (4.6) | 10 (12.1) | |
| Some days I forgot to take drops, n(%) | |||
| Strongly/Somewhat agree | 79 (73.8) | 48 (57.8) | 0.029 |
| Neither/Somewhat/Strongly disagree | 28 (26.2) | 35 (42.2) | |
| Always take eye drops, n(%) | 59 (54.1) | 27 (31.0) | 0.001 |
| Any reasons not taking drops (forgot, inconvenient, too expensive, side effects, irritates the eyes, don’t need it) | 50 (45.9) | 60 (69.0) | |
| Follows doctors orders, n(%) | |||
| Strongly/Somewhat agree | 102 (93.6) | 73 (83.9) | 0.037 |
| Neither/Somewhat/Strongly disagree | 7 (6.4) | 14 (16.1) | |
| Drops cause problems, n(%) | |||
| Strongly/Somewhat agree | 85 (78.7) | 66 (75.9) | 0.731 |
| Neither/Somewhat/Strongly disagree | 23 (21.3) | 21 (24.1) | |
| Remembering is easy, n(%) | |||
| Strongly/Somewhat agree | 94 (87.0) | 69 (83.1) | 0.537 |
| Neither/Somewhat/Strongly disagree | 14 (13.0) | 14 (16.9) | |
| I don’t like drops, n(%) | |||
| Strongly/Somewhat agree | 81 (75.7) | 64 (73.6) | 0.743 |
| Neither/Somewhat/Strongly disagree | 26 (24.3) | 23 (26.4) |
SD, Standard deviation