Table 1. Clinical and tumour characteristics by treatment arm.

	No lymphadenectomy (130 patients)		Lymphadenectomy (138 patients)
	n	%	n	%
Median age (25th–75th percentiles)	52 (44–59)		51 (43–60)
FIGO Stage (at random, before pathologic staging)
I	90	69.2	102	73.9
II	39	30.0	33	23.9
Missing data	1	0.8	3	2.2
Residual tumour
None	126	96.9	133	96.4
⩽1 cm	4	3.1	5	3.6
Tumour grade
1	20	15.4	30	21.7
2	41	31.5	29	21.0
3	65	50.0	72	52.2
Missing data	4	3.1	7	5.1
Cell type
Serous	43	33.1	61	44.2
Endometriod	34	26.2	24	17.4
Mucinous	22	16.9	14	10.1
Clear-cell	19	14.6	16	11.6
Undifferentiated	8	6.1	7	5.1
Other	2	1.5	8	5.8
Missing data	2	1.5	8	5.8