Skip to main content
. 2013 Dec 17;7:380. doi: 10.3332/ecancer.2013.380

Table 1. Distribution of Recurrence Score categories by patient/tumour characteristics.

Parameter Recurrence Score
Low Intermediate High
Age (N = 751)a
18–44 years (n = 138) 62 (44.9%) 58 (42.0%) 18 (13.1%)
45–64 years (n = 485) 267 (55.1%) 184 (37.9%) 34 (7.0%)
≥ 65 years (n = 128) 78 (60.9%) 43 (33.6%) 7 (5.5%)
Histology subtype (N = 713)b
IDC not specified (n = 590) 314 (53.2%) 228 (38.6%) 48 (8.1%)
IDC favourable (n = 21) 12 (57.1%) 7 (33.3%) 2 (9.5%)
ILC/mixed (n = 102) 67 (65.7%) 33 (32.4%) 2 (2.0%)
Grade/size combination (N = 605)c
Grade 2, ≤ 1 cm (n = 113) 62 (54.9%) 47 (41.6%) 4 (3.5%)
Grade 3, ≤ 1 cm (n = 28) 7 (25.0%) 12 (42.9%) 9 (32.1%)
Grade 1, > 1 cm (n = 101) 60 (59.4%) 38 (37.6%) 3 (3.0%)
Grade 2, > 1 cm (n = 363) 200 (55.1%) 131 (36.1%) 32 (8.8%)
Ki-67 levels (N = 389)d
≤ 15% (n = 251) 156 (62.2%) 86 (34.3%) 9 (3.6%)
> 15% (n = 138) 55 (39.9%) 59 (42.8%) 24 (17.4%)
a

All patients. P = 0.002; Mantel-Haenszel Chi-squared test for association between age and Recurrence Score groups.

b

MHS-eligible patients. P = 0.02 for overall differences between subtypes (Cochran-Mantel-Haenszel Row Mean Score test). Pairwise comparisons: P = 0.017 for IDC not specified v/s ILC/mixed (Cochran-Mantel-Haenszel Row Mean Score test using the Bonferroni correction). All other pairwise comparisons were nonsignificant.

c

MHS-eligible patients with grade/size information. P < 0.0001 for overall differences between grade/size combinations (Cochran-Mantel-Haenszel Row Mean Score test). Pairwise comparisons: P < 0.0005 for Grade 3 and ≤ 1 cm v/s all other grade/size combinations (Cochran-Mantel-Haenszel Row Mean Score test using the Bonferroni correction). All other pairwise comparisons were nonsignificant.

d

MHS-eligible patients with Ki-67 information. P < 0.0001 for overall differences between patients with Ki-67 ≤ 15% and > 15% (Cochran-Mantel-Haenszel Row Mean Score test).