Table 4 Summary of survey characteristics and completion rates
|  | Baseline survey N = 93 | Three-day survey N = 47 | Thirty-day survey N = 40 | Total N = 180 |
|---|---|---|---|---|
Total questions | 12 | 33–42 | 44–56 | 101 |
Time from survey distribution to completion (mean) | N/A | 6.2Â days | 4.1Â days | 5.3Â days |
Started and abandoned surveys (n) | 0 (0%) | 3 (6%) | 3 (7.5%) | 6 (3%) |
Surveys with ≥ 1 skipped question | 29 (31%) | 45 (96%) | 39 (97.5%) | 113 (63%) |
Skipped questions (median) | 0 | 5.0 | 5.5 | 11.0 |
Time spent on survey (median) | 2Â min | 6Â min | 5.5Â min | 17.5Â min |
Time of day completed | ||||
 Morning (5 am–12 pm) | NA | 2 (4.2%) | 3 (7.5%) | (5.8%) |
 Afternoon (12–4 pm) | NA | 11 (23.4%) | 12 (30.0%) | (26.4%) |
 Evening (4–8 pm) | NA | 16 (34.0%) | 8 (20.0%) | (27.6%) |
 Overnight (8 pm–5 am) | NA | 18 (38.3%) | 17 (42.5%) | (40.2%) |