Table 3.

Histologic characteristics of the patients with stage 1 endometrial carcinoma (N = 187) who were diagnosed with hysteroscopy (HSC) or dilatation and curettage (D&C)

Stage 1	HSC (N = 117)	D&C (N = 59)	P value
Histologic type
endometrioid adenocarcinoma	112 (95.7%)	56 (94.9%)	0.807*
non-endometrioid adenocarcinoma	5 (4.3%)	3 (5.1%)
Tumour differentiation
G1	75 (64.1%)	29 (49.2%)	0.156*
G2	32 (27.4%)	22 (37.3%)
G3	10 (8.5%)	8 (13.5%)
Myometrial invasion
none	5 (4.3%)	3 (5.1%)	0.079*
less than ½	71 (60.7%)	45 (76.2%)
more than ½	41 (35.0%)	11 (18.6%)
Peritoneal cytology positive or suspicious negative	15 (12.8%) 102 (87.2%)	2 (3.4%) 57 (96.6%)	0.046*
Time from diagnosis to operation (days)	35.6 ± 14.0	33.1 ± 12.7	0.255**

^*chi-square test

^**independent sample t-test