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Table 2 Description of wait times to definitive surgery, radiotherapy and chemotherapy overall, and among women diagnosed with screened, interval and symptomatic breast cancers

From: Factors associated with wait times across the breast cancer treatment pathway in Ontario

  Overall Screen-detected Interval Symptomatic
  N = 1760 N = 1096 N = 309 N = 355
  N (%) N (%) N (%) N (%)
Treatments Received a     
Surgery + Chemotherapy 110 (6.3) 60 (5.5) 20 (6.5) 30 (8.5)
Surgery + Radiotherapy 838 (47.6) 570 (52.0) 139 (45.0) 129 (36.2)
Surgery + Chemotherapy + Radiotherapy 552 (31.4) 308 (29.0) 112 (36.2) 132 (37.2)
Surgery Only 260 (14.8) 158 (14.4) 38 (12.3) 64 (18.0)
Diagnosis to Definitive Surgery b     
Number In analysis N = 1675 N = 1056 N = 293 N = 326
Median Wait Time to Definitive Surgery 17 days 18 days 20 days 15 days
IQR 0-31 days 0-31 days 0-33 days 0-30 days
90th Percentile > 49 days 49 days 51 days 49 days
Final Surgery to Chemotherapy c     
Number in analysis N = 498 N = 290 N = 98 N = 110
Median Wait Time to Chemotherapy 44 days 43 days 43 days 46 days
IQR 34-56 days 33-56 days 35-58 days 34-54 days
90th Percentile > 70 days 71 days 71 days 66 days
Final Surgery to Radiotherapy d     
Number In analysis N = 812 N = 556 n = 132 N = 124
Median Wait Time to Radiotherapy 75 days 75 days 73.5 days 78 days
IQR 57-97 days 57-96 days 59-97 days 59-100 days
90th Percentile > 118 days 118 days 112 days 138 days
  1. aPearson chi-squared test; difference in treatments received for interval (p = 0.031) and symptomatic (p < 0.001) compared to screen-detected.
  2. bWilcoxon rank sum test; difference in wait times for interval (p = 0.137) and symptomatic (p = 0.191) compared to screen-detected.
  3. cWilcoxon rank sum test; difference in wait times for interval (p = 0.504) and symptomatic (p = 0.573) compared to screen-detected.
  4. dWilcoxon rank sum test; difference in wait times for interval (p = 911) and symptomatic (p = 0.170) compared to screen-detected.