Table 2. Recruitment actions and number of participants.
| Day | Weekday | Invitation posted on Facebook*** | Actions taken by the researcher | Number of new participants (per day) | Total number of participants |
|---|---|---|---|---|---|
| 1 | Saturday* | Posted in group 1 and on two individual pages | 19 | 19 | |
| 2 | Sunday | Posted in group 2 | 15 | 34 | |
| 3 | Monday | 31 | 65 | ||
| 4 | Tuesday | Posted in group 3 | 16 | 81 | |
| 5 | Wednesday | Re-posted in group 1 | New headline for the invitation in group 1,2, 3 | 57 | 138 |
| 6 | Thursday | 101 | 239 | ||
| 7 | Friday | 81 | 320 | ||
| 8 | Saturday | Posted in group 4 and 5 | 65 | 385 | |
| 9 | Sunday | Re-posted in group 1 | 44 | 429 | |
| 10 | Monday** | 14 | 443 | ||
| * Survey opened at 10pm local time** Survey closed at 7am local time*** Group 1: Open Facebook group where Haiyan survivors could share their disaster experiences (40 000 members)Group 2: Closed Facebook group for nurses in the actual region (20 members)Group 3: Closed Facebook group for disaster volunteers in the actual region (80 members)Group 4: Open Facebook group for the general population within the region, open for all types of questions (3000 members) Group 5: Closed Facebook group for the general population in the region (150 members) | |||||