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Table 3 Adjusted odds ratios (OR) and 95%CI describing factors associated with wait times from diagnosis to definitive surgery (n = 1,675), and from final surgery to postoperative chemotherapy (n = 498) or postoperative radiotherapy (n = 812)

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

  Diagnosis → Definitive surgerya(n = 1,675) Surgery to chemotherapyb(n = 498) Surgery to radiotherapyc( n = 812)
  Wait time ≤17 days n (%) Wait time >17 days n (%) Odds ratio (95% CI) Wait time ≤44 days n (%) Wait time >44 days n (%) Odds ratio (95% CI) Wait time < 75 days n (%) Wait time >75 days n (%) Odds ratio (95% CI)
Detection Method          
Screened 527 (62.6) 529 (63.5) 1.00 reference 155 (60.3) 135 (56.0) 1.00 reference 281 (68.9) 275 (68.1) 1.00 reference
Interval 133 (15.8) 160 (19.2) 1.14 (0.86-1.51) 50 (19.5) 48 (19.9) 1.01 (0.62-1.64) 68 (16.7) 64 (15.8) 0.92 (0.60-1.38)
Symptomatic 182 (21.6) 144 (17.3) 0.93 (0.71-1.24) 52 (20.2) 58 (24.1) 1.35 (0.84-2.19) 59 (14.5) 65 (16.1) 1.09 (0.70-1.68)
Age at Diagnosis          
50-59 364 (43.2) 285 (34.2) 1.00 reference 129 (50.2) 97 (40.3) 1.00 reference 155 (38.0) 125 (30.9) 1.00 reference
60-69 478 (56.8) 548 (65.8) 0.97 (0.67-1.40) 128 (49.8) 144 (59.8) 1.45 (0.98 -2.14) 253 (62.0) 279 (69.1) 1.12 (0.82-1.55)
Diagnosis Year          
1995-1999 555 (65.9) 374 (44.9) 1.00 reference 141 (54.9) 100 (41.5) 1.00 reference 281 (68.9) 197 (48.8) 1.00 reference
2000-2003 287 (34.1) 459 (55.1) 2.29 (1.85-2.86)* 116 (45.1) 141 (58.5) 1.62 (1.10-2.41) 127 (31.1) 207 (51.2) 2.55 (1.86-3.52)*
Income Quintile          
Q1 (poorest) 167 (20.0) 130 (15.7) 1.00 reference 45 (17.7) 44 (18.5) 1.00 reference 63 (15.6) 72 (18.0) 1.00 reference
Q2 140 (16.8) 165 (20.0) 1.49 (1.05-2.09) 40 (15.7) 48 (20.2) 1.26 (0.68-2.34) 78 (19.3) 65 (16.2) 0.68(0.41-1.12)
Q3 162 (19.4) 155 (18.8) 1.21 (0.86-1.71) 52 (20.4) 42 (17.7) 0.78 (0.42-1.45) 68 (16.8) 85 (21.2) 0.90 (0.54-1.48)
Q4 154 (18.4) 178 (21.6) 1.47 (1.05-2.06) 54 (21.2) 48 (20.2) 0.96 (0.53-1.75) 77 (19.0) 87 (21.7) 0.84 (0.51-1.38)
Q5 (richest) 212 (25.4) 198 (24.0) 1.16 (0.84-1.61) 64 (25.1) 56 (23.5) 0.84 (0.47-1.50) 119 (29.4) 92 (22.9) 0.60 (0.37-0.96)
Treatment Centre Region          
South Central 423 (50.2) 332 (39.9) 1.00 reference 123 (47.9) 99 (41.1) 1.00 reference 156 (38.2) 199 (49.3) 1.00 reference
South Eastern 155 (18.4) 253 (30.4) 1.96 (1.51-2.56)* 60 (23.4) 76 (31.5) 1.76 (1.12-2.78) 129 (31.6) 68 (16.8) 0.40 (0.27-0.58)*
South Western 137 (16.3) 173 (20.8) 1.36 (1.03-1.81) 31 (12.1) 41 (17.0) 1.67 (0.94-2.94) 58 (14.2) 102 (25.3) 1.24 (0.83-1.87)
Northern 127 (15.1) 75 (9.0) 0.57 (0.41-0.81)* 43 (16.7) 25 (10.4) 0.59 (0.32-1.09) 65 (15.9) 35 (8.7) 0.33 (0.20-0.55)*
TNM Stage          
1 432 (51.3) 460 (55.2) 1.00 reference 57 (22.2) 46 (19.1) 1.00 reference 323 (79.2) 312 (77.2) 1.00 reference
2 296 (35.2) 284 (34.1) 0.86 (0.68-1.08) 138 (53.7) 132 (54.8) 1.15 (0.69-1.88) 80 (19.6) 83 (20.5) 1.18 (0.80-1.74)
3 114 (13.5) 89 (10.7) 0.49 (0.34-0.71)* 62 (24.1) 63 (26.1) 1.19 (0.66-2.13) 5 (1.2) 9 (2.2) 2.83 (0.74-10.8)
  1. aAdjusted for: detection method, age category, diagnosis year, treatment centre, income quintile, stage and definitive surgery type.
  2. bAdjusted for: detection method age category, diagnosis year, treatment centre, income quintile, stage and last surgery type and hormone status.
  3. cAdjusted for: detection method, age category, diagnosis year, treatment centre, income quintile, stage and last surgery type.
  4. *p < 0.001; p = 0.05; p = 0.02; p = 0.01.