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The classification of ratio of width of unilateral frontal sinus to unilateral orbit among the Indian population
| Range of ratio | Number of sample (%) | Class number | |
|---|---|---|---|
| Left | Right | ||
| ≥1.0 | 52 (14.1) | 56 (15.2) | 0 |
| 1.0-0.9 | 26 (7.1) | 48 (13.0) | 1 |
| 0.9-0.8 | 41 (11.1) | 41 (11.2) | 2 |
| 0.8-0.7 | 74 (20.1) | 65 (17.7) | 3 |
| 0.7-0.6 | 58 (15.8) | 63 (17.1) | 4 |
| 0.6-0.5 | 62 (16.9) | 45 (12.2) | 5 |
| 0.5-0.4 | 27 (7.3) | 29 (7.9) | 6 |
| 0.4-0.3 | 13 (3.5) | 15 (4.1) | 7 |
| 0.3-0.2 | 1 (0.3) | 2 (0.50) | 8 |
| <0.2 | 14 (3.8) | 4 (1.1) | 9 |
