Table 4. Comparison between the sum (Björk) studied and the standard by skeletal class and sex.
| Skeletal class | Sex | Sum (Björk) Studied | SD | Sum (Björk) Standard | SD | p | Mean difference | 95% confidence interval | |
|---|---|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||||
| Class I | Male | 392.70 | 5.20 | 396 | 6 | 0.074 | -3.14 | -6.70 | 0.42 |
| Female | 393.80 | 6.70 | 396 | 6 | 0.263 | -2.12 | -6.26 | 2.01 | |
| Class II | Male | 396.00 | 9.51 | 396 | 6 | 0.331 | 0.14 | -6.05 | 6.33 |
| Female | 399.00 | 5.37 | 396 | 6 | 0.957 | 3.37 | -4.26 | 11.01 | |
| Class III | Male | 398.40 | 4.80 | 396 | 6 | 0.274 | 2.62 | -2.60 | 7.85 |
| Female | 394.70 | 5.84 | 396 | 6 | 0.309 | -1.12 | -3.55 | 1.30 | |
Independent t-test.