Table 2 Comparison of clinical and histological characteristics of ATM and non-ATM tumors, after quality controls

Age at diagnosis

 Mean [range]

45.6 [28–75]‡

55.0 [41–66]

61.5 [25–82]

 SD

11.1

11.5

11.1

Year of diagnosis

 Mean [range]

2003 [1989–2017]^&

2007 [2004–2009]

2000 [1992–2016]

 Median

2006

2007

2000

ER status

 Positive

23 (85.2%)^¶

4 (80.0%)

350 (72.3%)

 Negative

3 (11.1%)

0 (0%)

107 (22.1%)

 Unknown

1 (3.7%)

1 (20%)

27 (5.6%)

Grade

 I

3 (11.1%)

1 (20%)

99 (20.5%)

 II

12 (44.4%)^§

4 (80%)

186 (38.4%)

 III

9 (33.3%)^§

0 (0%)

171 (35.3%)

 Unknown

3 (11.1%)

0 (0%)

28 (5.8%)