. 2010 Oct;16(4):247–252. doi: 10.4103/1319-3767.70607

Table 2.

Tumor characteristics of patients (η=284)

Variables	Group 1 (η=185)	Group 2 (η=99)	P value
Stage
I	163 (88.1)^a	36 (36.36)^a	<0.05^F
II	20 (10.8)^a	41 (41.41)^a
III	02 (1.08)^a	17 (17.17)^a
IV	-	5 (5.05)^a
Grade
G₁	96 (51.8)^a	29 (29.29)^a	<0.05^F
G₂	86 (46.4)^a	43 (43.43)^a
G₃	03 (1.62)^a	27 (27.27)
Histopathology
Squamous cell carcinoma	48 (16.8)^a	21 (21.21)^a	0.280^χ
Adenocarcinoma	134 (47.01)^a	78 (78.78)^a
Other	03 (1.62)^a	-
Tumor location
Upper third	29 (15.6)^a	14 (14.14)^a	0.211^χ
Middle third	73 (39.4)^a	30 (30.30)^a
Lower third	83 (44.8)^a	55 (55.55)^a

Percentages within group=^a;

Chi square test=^χ;

Fisher exact test= ^F;

Figures in parentheses are in percentage