Table 1.
Demographics and baseline characteristics of study participants
| Characteristic | Group A (Control) | Group B (CPP-ACP) | Group C (nHAp) | Group D (Fluoride) | Total | p-value |
|---|---|---|---|---|---|---|
| n | 10 | 10 | 10 | 10 | 40 | - |
| Age (years), Mean ± SD | 22.6 ± 6.7 | 22.5 ± 6.0 | 23.8 ± 8.5 | 22.7 ± 6.6 | 22.9 ± 7.0 | 0.92† |
| Range | 16–38 | 16–35 | 16–45 | 16–36 | 16–45 | |
| Sex, n (%) Female | 6 (60.0) | 5 (50.0) | 6 (60.0) | 7 (70.0) | 24 (60.0) | 0.68‡ |
| Male | 4 (40.0) | 5 (50.0) | 4 (40.0) | 3 (30.0) | 16 (40.0) | |
| Baseline DIAGNOdent, Mean ± SD | 10.4 ± 2.5 | 12.3 ± 1.5 | 12.1 ± 0.7 | 12.1 ± 0.9 | 11.5 ± 1.6 | 0.48† |
| Median (IQR) | 9.5 (7.0–12.0) | 11.0 (9.0–15.0) | 11.0 (8.0–15.0) | 11.0 (8.5–14.5) | 10.5 (8.0–14.0) | |
| DIAGNOdent Category, n (%) Sound (0–12) | 7 (70.0) | 5 (50.0) | 5 (50.0) | 5 (50.0) | 22 (55.0) | 0.76‡ |
| Initial (13–24) | 3 (30.0) | 4 (40.0) | 4 (40.0) | 4 (40.0) | 15 (37.5) | |
| Advanced (≥ 25) | 0 (0.0) | 1 (10.0) | 1 (10.0) | 1 (10.0) | 3 (7.5) | |
| Initial enrollment (n) | 10 | 12 | 11 | 12 | – | – |
| Dropout rate (%)¹ | 0% | 16.7% | 9.1% | 16.6% | 0.382² |