Table 2 Gender differences of the OC4D and OCD in neutral, flexion, and extension positions
From: A novel method for measurement of the occipital-cervical distance via the occiput-C4 distance
Male (n = 73) | Female (n = 77) | P value | |
|---|---|---|---|
OC4D (mm) | |||
Neutral | 73.0 ± 6.4 | 65.1 ± 4.8 | < 0.001 |
Flexion | 72.0 ± 6.6 | 64.4 ± 4.9 | < 0.001 |
Extension | 72.9 ± 6.3 | 65.1 ± 4.9 | < 0.001 |
OCD (mm) | |||
Neutral | 22.4 ± 5.0 | 23.6 ± 4.7 | > 0.05 |
Flexion | 26.4 ± 4.7 | 28.8 ± 7.0 | > 0.05 |
Extension | 13.1 ± 4.6 | 14.5 ± 4.7 | > 0.05 |