TABLE 1.
Number of the sampled eligible cases completed interviews, and working interviewers per month
| Study main production | Selected sample | Completed interviews n (%) | Total number of interviewers per month |
|---|---|---|---|
| Pilot (1 week) | 78 | 19 (24.3) | 8 |
| Dec 2020 | |||
| Feb 2021 | 217 | 119 (54.8) | 8 |
| Mar 2021 | 46 | 49 (106.5) a | 7 |
| Apr 2021 | 17 | 6 (35.2) | 4 |
| Jun 2021 | 61 | 34 (55.7) | 7 |
| Jul 2021 | 95 | 15 (15.7) | 1 |
| Sep 2021 | 20 | 33 (165) b | 5 |
| Oct 2021 | 85 | 29 (34.1) | 4 |
| Nov 2021 | 182 | 85 (46.7) | 8 |
| Dec 2021 | 109 | 87 (79.8) | 9 |
| Jan 2022 | 20 | 19 (95) | 5 |
| Total | 930 | 485 (52.2) | ‐‐‐ |
a
Sample carried over from the previous month. However, cases were contacted within 1 month from the completion of the first interview as per study protocol.
b
Sample carried over from previous 2 months. However, some cases were contacted after 7–8 weeks from the completion of the first interview.