Table 3: Distribution of patients based on the depth of impaction (Pell and Gregory Classification) according to sex, age and affected jaw (N=2550).
| -
|
-
|
Level A |
Level B |
Level C |
|
|
N |
% |
p |
N |
% |
p |
N |
% |
p |
| Total (N=2550) |
1365 |
53.5% |
|
182 |
7.1% |
|
177 |
6.9% |
|
| Sex |
Male |
889 |
65.1% |
|
122 |
67.0% |
|
106 |
59.9% |
0.161 |
|
Female |
476 |
34.9% |
0.675 |
60 |
33.0% |
0.507 |
71 |
40.1% |
|
| Age group |
18-19 |
66 |
4.8% |
<0.001 |
0 |
0.0% |
<0.001 |
23 |
13.0% |
<0.001 |
|
20-24 |
230 |
16.9% |
|
70 |
38.5% |
|
64 |
36.2% |
|
|
25-29 |
220 |
16.1% |
|
36 |
19.8% |
|
46 |
26.0% |
|
|
30-34 |
288 |
21.1% |
|
18 |
9.9% |
|
18 |
10.2% |
|
|
35-39 |
246 |
18.0% |
|
19 |
10.4% |
|
8 |
4.5% |
|
|
40-44 |
87 |
6.4% |
|
13 |
7.1% |
|
12 |
6.8% |
|
|
45-49 |
85 |
6.2% |
|
9 |
4.9% |
|
0 |
0.0% |
|
|
50-54 |
53 |
3.9% |
|
10 |
5.5% |
|
6 |
3.4% |
|
|
≥55 |
89 |
6.5% |
|
7 |
3.8% |
|
0 |
0.0% |
|
| Jaw |
Lower |
714 |
52.3% |
0.019 |
115 |
63.2% |
<0.001 |
108 |
61.0% |
0.003 |
|
Upper |
650 |
47.7% |
|
67 |
36.8% |
|
69 |
39.0% |
|