Table 1. Intervention significance by portal registration category.
| Portal account category | Intervention 1: training distribution | Intervention 2: questionnaire assignment | Intervention 3: account restriction | ||||||
|---|---|---|---|---|---|---|---|---|---|
| March 25, 2022 | May 27, 2022 | p -Value a | June 10, 2022 | August 7, 2022 | p -Value a | August 14, 2022 | October 16, 2022 | p -Value a | |
| N | 32,223 | 35,218 | 35,374 | 34,719 | 34,706 | 36,011 | |||
| Accurately registered portal accounts | 19.0% | 19.6% | 0.049 | 19.7% | 27.6% | <0.001 | 28.2% | 28.7% | 0.147 |
| Inaccurately registered portal accounts | 35.0% | 34.0% | 0.006 | 34.0% | 27.3% | <0.001 | 26.8% | 25.9% | 0.006 |
| Accuracy unknown registered portal accounts | 46.0% | 46.4% | 0.287 | 46.3% | 45.2% | 0.002 | 45.1% | 45.5% | 0.260 |
a
Two-sample z-test for proportions comparing immediately preintervention to 2-month postintervention. p -Values significant at 0.05 level marked in bold.