Participant demographics
| Characteristics | Whitu app (n=45) | Waitlist control (n=45) | Total (n=90) |
| Age (years); mean (SD) | 22.71 (3.67) | 24.64 (3.74) | 23.68 (3.81) |
| Gender | |||
| Female | 40 (88.9) | 39 (86.7) | 79 (87.8) |
| Male | 3 (6.7) | 6 (13.3) | 9 (10.0) |
| Non-binary | 2 (4.4) | 0 | 2 (2.2) |
| Ethnicity* | |||
| New Zealand European | 14 (31.1) | 11 (24.4) | 25 (27.8) |
| Māori | 22 (48.9) | 17 (37.8) | 39 (43.3) |
| Pacific | 2 (4.4) | 9 (20.0) | 11 (12.2) |
| Asian | 5 (11.1) | 4 (8.9) | 9 (10.0) |
| Other ethnic groups | 2 (4.4) | 4 (8.9) | 6 (6.7) |
| Occupation | |||
| Paid work | 16 (35.6) | 15 (33.3) | 31 (34.4) |
| Student | 29 (64.4) | 30 (66.7) | 59 (65.6) |
| Reported having a health condition | 18 (40.0) | 12 (26.7) | 30 (33.3) |
| Reported taking medications | 14 (31.1) | 6 (13.3) | 20 (22.2) |
| Reported previous related app use† | 10 (22.2) | 11 (24.4) | 21 (23.3) |
Data are displayed as n (%), unless otherwise stated.
*Pacific including: Samoan (n=6), Tongan (n=4), Fijian/Tuvaluan (n=1); and Asian including: Chinese (n=3), Indian (n=3), NZ Sri Lankan (n=1), Indonesian (n=1), Taiwanese (n=1).
†Apps previously used included Calm (n=7), Headspace (n=13) and Insight (n=1).
CONSORT, Consolidated Standards for Reporting Trials.