|  | Exemestane | Observation | Total |
---|---|---|---|---|
Patients | Number | 211 | 200 | 411 |
Age | Mean | 62.6 | 61.8 | 62.2 |
 | (range) | (40–81) | (39–81) | (39–81) |
Weight | Mean | 71.8 | 69.6 | 70.6 |
 | (range) | (48–100) | (52–100) | (48–100) |
Adjuvant chemotherapy | n (%) | Â | Â | Â |
   No |  | 131 (62.09) | 121 (60.5) | 252 (61.31) |
   Yes |  | 80 (37.91) | 79 (39.5) | 159 (38.69) |
Local radiation therapy | n (%) | Â | Â | Â |
   No |  | 77 (36.49) | 82 (41.0) | 159 (38.69) |
   Yes |  | 117 (55.45) | 99 (49.5) | 216 (52.55) |
Missing data | Â | 17 (8.06) | 19 (9.5) | 36 (8.76) |
ECOG performance status | n (%) | Â | Â | Â |
   0 |  | 164 (77.73) | 148 (74.0) | 312 (75.91) |
   1 |  | 33 (15.64) | 41 (20.5) | 74 (18.0) |
   2 |  | 1 (0.47) | 0 (0.0) | 1 (0.24) |
   Not reported |  | 13 (6.16) | 11 (5.5) | 24 (5.84) |
ER and PgR status | n (%) | Â | Â | Â |
   ER+/PgR+ |  | 110 (52.13) | 107 (53.5) | 217 (52.8) |
   ER+/PgR- |  | 23 (10.9) | 19 (9.5) | 42 (10.22) |
   ER-/PgR+ |  | 13 (6.16) | 10 (5.0) | 23 (5.6) |
   ER+/PgR unknown |  | 15 (7.11) | 11 (5.5) | 26 (6.33) |
   ER and PgR unknown |  | 50 (23.7) | 53 (26.5) | 103 (25.06) |