Table 2.
shows female:male distribution of the mean value, SD, median value, range and normal cut-off values of the measurements of different anatomical structures.
| study cohort | Female | Male | P-value | |||||
|---|---|---|---|---|---|---|---|---|
| Mean ± SD |
Mean ± SD (median) |
Range |
Normal values |
Mean ± SD (median) |
Range |
Normal values |
||
| Maxillary sinus: | ||||||||
| Volume (right) | 15.4 ± 5 | 14 ± 3 (14) | 5-19 | 8-20 | 18 ± 6 (18) | 9-32 | 6-30 | 0.002 |
| Volume (left) | 16 ± 6 | 15 ± 4 (15) | 7-21 | 7-23 | 18 ± 7 (18) | 7-34 | 4-32 | 0.016 |
| Craniocaudal diameter (right) | 31.3 ± 5 | 30 ± 3 (31) | 20-35 | 24-36 | 34 ± 5 (33) | 27-43 | 24-44 | 0.004 |
| Craniocaudal diameter (left) | 31.3 ± 5 | 30 ± 3 (30) | 24-34 | 24-36 | 33 ± 5 (34) | 21-43 | 23-43 | 0.020 |
| A-P diameter (right) | 35 ± 4 | 35 ± 3 (35) | 27-41 | 29-41 | 36 ± 3 (36) | 31-46 | 30-42 | 0.056 |
| A-P diameter (left) | 35.6 ± 4 | 34 ± 4 (34) | 27-40 | 26-42 | 35 ± 4 (36) | 26-43 | 27-43 | 0.058 |
| Width (right) | 23.4 ± 4 | 23 ± 3 (22) | 12-28 | 17-29 | 25 ± 4 (25) | 18-34 | 17-33 | 0.018 |
| Width (left) | 23.7 ± 4 | 23 ± 3 (24) | 16-30 | 17-29 | 25 ± 5 (25) | 14-33 | 15-35 | 0.125 |
| Anterior wall thickness at canine fossa (right) | 1.1 ± 0.4 | 1 ± 0.4 (1) | 0.6-2.3 | 0.2-1.8 | 1.1 ± 0.3 (1.2) | 0.6-2.1 | 0.5-1.7 | 0.266 |
| Anterior wall thickness at canine fossa (left) | 1.1 ± 0.4 | 1.1 ± 0.4 (1) | 0.6-2.5 | 0.3-1.9 | 1 ± 0.3 (1) | 0.5-1.8 | 0.4-1.6 | 0.504 |
| Frontal sinus: | ||||||||
| A-P diameter (right) | 9.6 ± 3 | 9 ± 4 (9) | 4-20 | 1-17 | 10 ± 3 (10) | 6-16 | 4-16 | 0.034 |
| A-P diameter (left) | 10.2 ± 3.3 | 9 ± 3 (9) | 5-20 | 3-15 | 11 ± 3 (11) | 6-18 | 5-17 | 0.046 |
| Anterior wall thickness (right) | 2.1 ± 0.8 | 2 ± 0.6 (1.9) | 1.2-3.5 | 0.8-3.2 | 2.1 ± 1 (1.9) | 0.9-5.2 | 0.1-4.1 | 0.824 |
| Anterior wall thickness (left) | 2.1 ± 0.8 | 2.1 ± 0.7 (1.9) | 0.8-4.1 | 0.7-3.5 | 1.9 ± 0.7 (1.7) | 0.9-3.7 | 0.5-3.5 | 0.450 |
| Soft tissue thickness between anterior wall of maxillary sinus and the skin surface | ||||||||
| AP-diameter (right) | 11.6 ± 3 | 11 ± 3 (11) | 5-15 | 5-17 | 12 ± 4 (11) | 6-20 | 4-20 | 0.300 |
| AP-diameter (left) | 12.1 ± 4 | 11 ± 4 (11) | 5-18 | 3-19 | 13 ± 4 (12) | 5-21 | 5-21 | 0.227 |
| Orbital floor | ||||||||
| Thickness (right) | 0.9 ± 0.2 | 0.8 ± 0.2 (0.8) | 0.5-1.4 | 0.4-1.2 | 0.9 ± 0.3 (0.8) | 0.4-1.4 | 0.3-1.5 | 0.440 |
| Thickness (left) | 0.9 ± 0.2 | 0.9 ± 0.3 (0.9) | 0.5-2 | 0.3-1.5 | 0.9 ± 0.3 (0.8) | 0.5-1.4 | 0.3-1.5 | 0.853 |
SD indicates standard deviation.
The volume is given in cm3 whereas other values are given in millimeter.
P-values of statistically significant female:male differences are written in bold style.
Normal values: The lower limit equals mean -2SD whereas the upper limit equals mean +2SD.
A-P diameter indicates anteroposterior diameter (depth).