Table 5: Distribution of patients based on the inclination of third molar to the long axis of second molar (Winter's classification) according to sex, age and affected jaw (N=2550).

- - Ma Da V H T
N % p N % p N % p N % p N % p
Total (N=2550) 149 5.8% 94 3.7% 1354 53.1% 72 2.8% 6 0.2%
Sex Male 106 71.1% 60 63.8% 906 66.9% 45 62.5% 0 0.0% 0.001
Female 43 28.9% 0.088 34 36.2% 0.850 448 33.1% 0.015 27 37.5% 0.684 6 100.0%
Age group 18-19 15 10.1% <0.001 0 0.0% <0.001 59 4.4% <0.001 0 0.0% <0.001 0 0.0% <0.001
20-24 39 26.2% 23 24.5% 229 16.9% 16 22.2% 0 0.0%
25-29 13 8.7% 29 30.9% 235 17.4% 21 29.2% 0 0.0%
30-34 16 10.7% 4 4.3% 267 19.7% 11 15.3% 0 0.0%
35-39 37 24.8% 14 14.9% 250 18.5% 17 23.6% 0 0.0%
40-44 9 6.0% 0 0.0% 105 7.8% 3 4.2% 0 0.0%
45-49 0 0.0% 0 0.0% 99 7.3% 0 0.0% 0 0.0%
50-54 9 6.0% 0 0.0% 41 3.0% 0 0.0% 6 100.0%
≥55 11 7.4% 24 25.5% 69 5.1% 4 5.6% 0 0.0%
Jaw Lower 144 96.6% <0.001 25 26.6% <0.001 665 49.2% 0.270 71 100.0% <0.001 0 0.0% 0.014
Upper 5 3.4% 69 73.4% 688 50.8% 0 0.0% 6 100.0%