Skip to main content

Table 1 Adjusted odds ratio (OR) and 95% confidence intervals (CIs) of demographic and tumour characteristics among interval, and symptomatic detected breast cancers compared to screen-detected cancers

From: Clinical and prognostic factors associated with diagnostic wait times by breast cancer detection method

 

Screen-detected (N = 1181)

Interval (N = 319)

ORa(95% CI)

Symptomatic (N = 406)

ORa(95% CI)

Characteristics

n (%)

n (%)

n (%)

Age at diagnosis a

     

 50-59

450(38.1)

122(38.2)

1.00(reference)

165(40.6)

1.00(reference)

 60-69

731(61.9)

197(61.8)

0.90 (0.58-1.40)

241(59.4)

1.11(0.74-1.68)

Last screen a

     

 OBSP

427(36.2)

123(38.6)

1.00(reference)

--

--

 OHIP

754(63.8)

196(61.4)

0.98(0.75-1.26)

--

--

Period of diagnosis a

     

 1995-1999

652(55.2)

148(46.4)

1.00(reference)

246(60.6)

1.00(reference)

 2000-2003

529(44.8)

171(53.6)

0.64 (0.39-1.05)

160(39.4)

0.83 (0.53-1.29)

Treatment center region a

     

 South Central

530(44.8)

150(47.0)

1.00(reference)

193(47.5)

1.00 (reference)

 South Eastern

297(25.2)

70(21.9)

0.79(0.58-1.09)

95(23.4)

0.90(0.68-1.19)

 South Western

219(18.5)

56(17.6)

0.88(0.62-1.25)

71(17.5)

0.91(0.66-1.25)

 Northern

135(11.4)

43(13.5)

1.06(0.72-1.57)

47(11.6)

0.99(0.68-1.44)

Income quintiles a

     

 1-lowest

185(15.7)

43(13.7)

1.00(reference)

94(23.6)

1.00(reference)

 2

221(18.8)

56(17.8)

1.04(0.67-1.62)

71(17.8)

0.62(0.45-0.92)*

 3

224(19.0)

72(22.9)

1.34(0.87-2.05)

64(16.0)

0.56(0.39-0.82)*

 4

246(20.9)

51(16.2)

0.85(0.54-1.33)

78(19.6)

0.63(0.44-0.89)*

 5-highest

301(25.6)

92(29.3)

1.31(0.87-1.97)

92(23.1)

0.59(0.42-0.84)*

Missing

4

5

 

7

 

Community size a

     

 1 500 000+

358(30.3)

109(34.2)

1.00(reference)

139(34.2)

1.00(reference)

 500 000–1 499 999

205(17.4)

45(14.1)

0.68(0.46-1.00)

54(13.3)

0.69(0.48-0.99)*

 100 000–499 999

297(25.2)

76(23.8)

0.79(0.57-1.10)

78(19.2)

0.69(0.50-0.95)*

 10 000 – 99 999

120(10.2)

42(13.7)

1.15(0.76-1.73)

61(15.0)

1.33 (0.92-1.92)

 <10 000

201(17.0)

47(14.7)

0.73(0.46-1.07)

74(18.2)

0.97(0.70-1.36)

Diagnostic biopsy b

     

 FNA/Core

618(52.3)

180(56.4)

1.00(reference)

259(63.8)

1.00(reference)

 Open

563(47.8)

139(43.5)

0.94 (0.72-1.22)

147(36.2)

0.56(0.44-0.72)**

Tumour size (cm) c

     

 Mean size at diagnosis

1.83

2.1

 

3.26

 

 <1.0

384(33.2)

84(27.5)

1.00(reference)

39(10.6)

1.00(reference)

 1.0-1.5

268(23.2)

61(20.0)

1.09(0.75-1.58)

46(12.5)

1.63(1.03-2.57)*

 1.5-2.0

209(18.1)

50(16.4)

1.13(0.76-1.68)

62(16.8)

2.61(1.67-4.06)**

 >2.0

296(25.6)

110(36.1)

1.68(1.21-2.35)*

222(60.2)

6.92(4.74-10.10)**

Missing

24

14

 

37

 

Node status c

     

 Negative

779(70.1)

191(66.1)

1.00(reference)

182(52.6)

1.00(reference)

 Positive

333(29.9)

98(33.9)

1.20(0.91-1.58)

164(47.4)

1.96(1.52-2.52)**

Missing

69

30

 

60

 

Stage at diagnosis c

     

 I

662(58.7)

150(49.5)

1.00(reference)

92(24.2)

1.00(reference)

 II

332(29.4)

90(29.7)

1.20(0.89-1.62)

159(41.8)

3.19(2.37-4.27)**

 III-IV

134(11.9)

63(20.7)

1.99(1.40-2.84)*

129(33.9)

6.82(4.89-9.50)**

Missing

53

16

 

26

 
  1. aadjusted by age at diagnosis (continuous); year of diagnosis (continuous).
  2. badjusted by age at diagnosis (continuous) year of diagnosis (continuous) treatment center region (categorical) income quintile (categorical).
  3. cadjusted by age at diagnosis (continuous) year of diagnosis (continuous) treatment center region (categorical) income quintile (categorical); biopsy type (categorical).
  4. *p < 0.05.
  5. **p < 0.0001.