Table 2.

Patient demographic and clinicopathologic characteristics stratified by ATR mutation status ^a

Characteristic	ATR Mutation		Total	p-value b
	Absent	Present
Ethnicity
Hispanic	6	1	7	0.423
Non-Hispanic	351	36	387
Unknown/Not specified	61	9	70
Race
African American	25	1	26	0.412
Caucasian	380	44	424
Other	9	0	9
Unknown/Not specified	4	1	5
Stage (FIGO 1988)
I	280	33	313	0.955
II	43	4	47
III	83	8	91
IV	12	1	13
Tumor grade
Low grade (grade 1)	158	4	162	0.001
High grade (grade 2 or 3)	260	42	302
LVSI
No	283	28	311	0.557
Yes	126	17	143
Not reported	9	1	10
Myometrial invasion
None	57	3	60	0.396
Inner half	228	28	256
Outer half	104	11	115
Serosa	12	3	15
Not reported	17	1	18
Adjuvant treatment
No	221	23	244	0.757
Yes	197	23	220

^aN=464 (11 MSI-high cases without ATR data were excluded)

^bFisher’s Exact Test