Analyses of the taper ratio for C1–C7 with respect to age and gender
| Group D | Group ND | |||
|---|---|---|---|---|
| N | Taper Ratio | N | Taper Ratio | |
| Age | ||||
| ≤14 years | 28 | −0.26 ± 0.55 | 12 | −0.77 ± 0.46 |
| >14 years | 16 | −0.49 ± 0.53 | 21 | −0.71 ± 0.63 |
| P | .380 | .750 | ||
| Sex | ||||
| Male | 26 | −0.39 ± 0.56 | 20 | −0.72 ± 0.70 |
| Female | 18 | −0.27 ± 0.53 | 13 | −0.75 ± 0.27 |
| P | .358 | .883 | ||
| Extent of tonsillar descent | ||||
| Grade I | 25 | −0.34 ± 0.62 | 17 | −0.79 ± 0.50 |
| Grade II | 16 | −0.29 ± 0.46 | 15 | −0.61 ± 0.63 |
| Grade III | 3 | −0.56 ± 0.38 | 1 | −1.37 |
| P | .525 | .335 | ||
Note:—Statistical significance was tested using the Kruskal–Wallis test.