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Application usage frequency during the follow-up period.
| Follow ups | Application usage frequency | Pearson’s correlation | |
|---|---|---|---|
| p valuea | |||
| Mean ± SD | Brushing duration | Brushing frequency | |
| First follow-up (T1) | 1.31 ± 0.08 | r = 0.16 | r = 0.55 |
| p = 0.214 | p < 0.001** | ||
| Second follow-up (T2) | 1.29 ± 0.09 | r = 0.26 | r = 0.51 |
| p = 0.043** | p < 0.001** | ||
| Third follow-up (T3) | 1.31 ± 0.09 | r = 0.29 | r = 0.50 |
| p = 0.024** | p < 0.001** | ||
**p-values are statistically significant.
aPearson’s correlation test.
