Table 2.
Follow-up results among tuberculosis patients enrolled in VDOT Pilot Study, 2010–2012
| Variables | Total (n=52) n (%) |
San Diego (n=41)* n (%) |
Tijuana (n=9) n (%) |
|---|---|---|---|
| VDOT Outcomes | |||
| Time spent using VDOT (months) (n=52) | |||
| Mean (SD) | 5.5 (2.1) | 5.6 (2.2) | 5.2 (1.5) |
| Range | 1–11 | 1–11 | 2–7 |
| Number of missed doses (n=52)** | |||
| Mean (SD) | 2.7 (7.0) | 2.7 (7.7) | 1.9 (2.0) |
| Range | 0–41 | 0–41 | 0–5 |
| Returned to in-person DOT (n=52) | 7 (13.5) | 6 (14.0) | 1 (11.1) |
| Phone status at end of study (n=52) | |||
| Broken/Lost | 3 (5.8) | 2 (4.7) | 1 (11.1) |
| Stolen | 3 (5.8) | 1 (2.3) | 2 (22.2) |
| VDOT Training | |||
| Days practiced VDOT before recording videos alone (n=52) | |||
| 1 | 26 (50.0) | 25 (58.1) | 1 (11.1) |
| 2 | 6 (11.5) | 6 (13.9) | 0 ( 0) |
| 3 | 5 (9.6) | 2 (4.7) | 3 (33.3) |
| ≥4 | 12 (23.1) | 7 (16.3) | 5 (55.6) |
| Don’t Know/Missing | 3 (5.8) | 3 (7.0) | 0 ( 0) |
| Found VDOT training process helpful | |||
| Yes | 48 (96.0) | 39 (95.1) | 9 ( 100) |
| No | 2 (4.0) | 2 (4.9) | 0 ( 0) |
| Found VDOT training pamphlet helpful (n=47) | |||
| Yes | 37 (78.7) | 30 (79.0) | 7 (77.8) |
| No | 10 (21.3) | 8 (21.0) | 2 (22.2) |
| Used VDOT training pamphlet when alone (n=46) | |||
| Yes | 20 (43.5) | 16 (42.1) | 4 (50.0) |
| No | 26 (56.5) | 22 (57.0) | 4 (50.0) |
| VDOT Technical Issues | |||
| Frequency of video recording problems | |||
| ≥1/2 the time | 4 (8.0) | 3 (7.3) | 1 (11.1) |
| Rarely | 27 (54.0) | 22 (53.7) | 5 (55.6) |
| Never | 19 (38.0) | 16 (39.0) | 3 (33.3) |
| Frequency of problems sending videos | |||
| ≥1/2 the time | 7 (14.0) | 6 (14.6) | 1 (11.1) |
| Rarely | 34 (68.0) | 28 (68.3) | 6 (66.7) |
| Never | 9 (18.0) | 7 (17.1) | 2 (22.2) |
| Unable to send video due to poor reception | |||
| ≥1/2 the time | 2 (4.0) | 2 (4.9) | 0 ( 0) |
| Rarely | 17 (34.0) | 12 (29.2) | 5 (55.6) |
| Never | 31 (62.0) | 27 (65.9) | 4 (44.4) |
| Able to send videos when traveling to other cities (n=47) | |||
| Yes, always | 12 (25.5) | 10 (26.3) | 2 (22.2) |
| Yes, sometimes | 5 (10.6) | 4 (10.5) | 1 (11.1) |
| Never tried | 30 (63.8) | 24 (63.2) | 6 (66.7) |
| VDOT Confidentiality | |||
| Confidentiality of VDOT vs. in-person DOT (n=50) | |||
| More | 42 (84.0) | 35 (85.4) | 7 (77.8) |
| Less | 8 (16.0) | 6 (14.6) | 2 (22.2) |
| Failed to record videos because others might see | |||
| No | 49 (98.0) | 40 (97.6) | 9 (100) |
| Yes | 1 (2.0) | 1 (2.4) | 0 (0) |
| VDOT Satisfaction | |||
| If repeat TB treatment needed, would you choose VDOT or In-Person DOT? | |||
| VDOT | 46 (92.0) | 38 (92.7) | 8 (88.9) |
| No preference | 2 (4.0) | 2 (4.9) | 1 (11.1) |
| In-person | 2 (4.0) | 1 (2.4) | 0 (0) |
| Would you recommend VDOT to other TB patients? | |||
| No | 0 (0) | 0 (0) | 0 (0) |
| Yes | 50 (100) | 41 (100) | 9 ( 100) |
| Found text message reminders helpful (n=47) | |||
| Yes | 30 (63.8) | 24 (60.0) | 6 (85.7) |
| No | 17 (36.2) | 16 (40.0) | 1 (14.3) |
*
Two participants in San Diego did not complete the follow-up interview; thus, overall N=50 for interview questions unless otherwise noted.
**
Missed doses included failure to take medication and technical problems that made some videos not viewable.