Table 6 Backward removal of variables in the sample-specific regressive equation proposed in this study
From: Kvaal’s dental age estimation method applied to Brazilian adults—a cross-sectional test of validity
Round # | Variables | Variable removed | p |
|---|---|---|---|
1 | Sex, T, P, R, A, A’, B, B’, C, C’ | A | 0.903 |
2 | Sex, T, P, R, A’, B, B’, C, C’ | T | 0.544 |
3 | Sex, P, R, A’, B, B’, C, C’ | B | 0.347 |
4 | Sex, P, R, A’, B’, C, C’ | – | – |
Final equation | Age = 50.3 − 2.74*Sex − 0.20*P + 0.18*R − 40*A’ − 1.05*B’ + 0.64*C − 2.02*C’ | ||