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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.