Table 2.
Frequency of skeletal muscle invasion in different grades of OSCC.
| GRADING | NO INVASION | FOCAL INVASION | MODERATE INVASION | SEVERE INVASION | Chi square value | P value |
|---|---|---|---|---|---|---|
| WDSCC | 6(19%) | 3(9.4%) | 17(53%) | 6(19%) | 3.040 | 0.804 |
| MDSCC | 5(21.7%) | 1(4.3%) | 11(47.8%) | 6(26.1%) | ||
| PDSCC | 0 | 0 | 3(60%) | 2(40%) |
WDSCC – well-differentiated squamous cell carcinoma, MDSCC – moderately-differentiated squamous cell carcinoma, PDSCC – poorly-differentiated squamous cell carcinoma.
Significance threshold P value = 0.05.
P value for skeletal muscle invasion = 0.804 (>0.05).