Table 2.
Contingency tables presenting net (and %) distributions of canal presence and its diameters across the genders, evaluated in the premolar and molar areas, as well as the results of the χ2 test comparing the sexes in terms of existence of detected canal and its diameter (α = 0.0125)
| Area | Sex | Canal presence | P | Categorized canal diameter | P | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| No | Yes | Total | < 1 mm | 1–2 mm | > 2 mm | Total | ||||
| First premolar | Male | 76 (19) | 89 (22.3) | 165 (41.3) | 0.1209 | 40 (17.1) | 49 (20.9) | 0 | 89 (38) | 0.0533 |
| Female | 90 (22.5) | 145 (36.3) | 235 (58.8) | 84 (35.9) | 61 (26.1) | 0 | 145 (62) | |||
| Total | 166 (41.5) | 234 (58.5) | 400 (100) | 124 (53) | 110 (47) | 0 | 234 (100) | |||
| Second premolar | Male | 25 (6.3) | 138 (34.7) | 163 (41) | 0.0385 | 75 (23.7) | 63 (19.9) | 0 | 138 (43.5) | 0.0023 |
| Female | 56 (14.1) | 179 (45) | 235 (59) | 127 (40.1) | 52 (16.4) | 0 | 179 (56.5) | |||
| Total | 81 (20.4) | 317 (79.6) | 398 (100) | 202 (63.7) | 115 (36.3) | 0 | 317 (100) | |||
| First molar | Male | 34 (8.5) | 131 (32.8) | 165 (41.3) | 0.0034 | 76 (26.6) | 54 (18.9) | 1 (0.3) | 131 (45.8) | 0.0015 |
| Female | 80 (20) | 155 (38.8) | 235 (58.8) | 120 (42) | 35 (12.2) | 0 | 155 (54.2) | |||
| Total | 114 (28.5) | 286 (71.5) | 400 (100) | 196 (68.5) | 89 (31.1) | 1 (0.3) | 286 (100) | |||
| Second molar | Male | 21 (5.3) | 144 (36) | 165 (41.3) | 0.0566 | 102 (30.7) | 40 (12) | 2 (0.6) | 144 (43.4) | 0.0010 |
| Female | 47 (11.8) | 188 (47) | 235 (58.8) | 164 (49.4) | 23 (6.9) | 1 (0.3) | 188 (56.6) | |||
| Total | 68 (17) | 332 (83) | 400 (100) | 266 (80.1) | 63 (19) | 3 (0.9) | 332 (100) | |||