Table 6.
Univariate and adjusted Cox regression analysis for teeth exfoliation (n = 125)
| Variable | Total n (%) | HR Univariate† 95% CI‡ | p value | HR Adjusted† 95% CI‡ | p value |
|---|---|---|---|---|---|
| Group | |||||
| ART (ref) | 60 (92.3) | ||||
| Hall Technique | 65 (98.5) |
1.60 1.05–2.45 |
0.030* |
1.84 1.19–2.87 |
0.007* |
| Age (years) | |||||
| 5–6.9 (ref) | 21 (87.5) | ||||
| 7–8.9 | 73 (93.3) |
7.75 2.79–21.5 |
< 0.001* |
8.89 3.17–24.88 |
< 0.001* |
| ≥ 9 | 31 (96.9) |
12.62 4.36–36.51 |
< 0.001* |
17.08 5.76–50.62 |
< 0.001* |
| Sex | |||||
| Male (ref) | 75 (93.8) | ||||
| Female | 50 (98) |
0.83 0.54–1.29 |
0.409 | ||
| Jaw | |||||
| Upper (ref) | 76 (96.2) | ||||
| Lower | 49 (94.2) |
1.00 0.65–1.53 |
0.994 | ||
| Side | |||||
| Right (ref) | 66 (94.3) | ||||
| Left | 59 (96.7) |
0.83 0.55–1.27 |
0.404 | ||
| Tooth | |||||
| 1st primary molar (ref) | 76 (92.7) | ||||
| 2nd primary molar | 49 (100) |
0.75 0.48–1.15 |
0.188 |
0.64 0.41–0.99 |
0.047* |
†HR Hazard ratio, ‡CI confidence Interval
* Indicates statistically significance differences (p < 0.05)