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Table 1 Factors associated with delay in adjuvant therapy

From: Ethnic differences in timely adjuvant chemotherapy and radiation therapy for breast cancer in New Zealand: a cohort study

Characteristic

Total (N = 1918)

Delay in first adjuvant therapya

Delay in radiation therapy >90 days

Delay in chemotherapy >60 days

n (%)

n (%)

p

n (%)

p

n (%)

p

Ethnicity

       

  NZ European

1564 (81.5)

478 (30.6)

 

261 (30.6)

 

217 (30.5)

 

  Māori

266 (13.9)

101 (38.0)

0.022

45 (39.8)

0.045

57 (37.3)

0.103

  Pacific

38 (2.0)

19 (50.0)

0.013

6 (54.5)

0.101

13 (48.1)

0.057

  Other

50 (2.6)

21 (42.0)

0.112

7 (35.0)

0.676

14 (46.7)

0.065

Age (years)

  

0.846

 

0.704

 

0.091

  <40

117 (6.1)

38 (32.5)

 

9 (40.9)

 

29 (30.5)

 

  40-49

433 (22.6)

130 (30.0)

 

43 (32.8)

 

87 (28.8)

 

  50-59

583 (30.4)

193 (33.1)

 

89 (34.2)

 

104 (32.2)

 

  60-69

494 (25.8)

165 (33.4)

 

94 (29.2)

 

71 (41.3)

 

  70-79

212 (11.1)

70 (33.0)

 

60 (33.0)

 

10 (33.3)

 

  80+

79 (4.1)

23 (29.1)

 

23 (29.1)

 

0

 

Stage at diagnosis

  

<0.001

 

<0.001

 

0.048

  I

800 (41.7)

228 (28.5)

 

176 (27.0)

 

52 (35.4)

 

  II

772 (40.3)

291 (37.7)

 

112 (43.1)

 

179 (35.0)

 

  III

346 (18.0)

100 (28.9)

 

30 (36.1)

 

70 (26.6)

 

Year of diagnosis

  

<0.001

 

<0.001

 

<0.001

  1999-2002

393 (20.5)

166 (42.2)

 

105 (62.5)

 

61 (27.1)

 

  2003-2006

579 (30.2)

181 (31.3)

 

107 (35.9)

 

74 (26.3)

 

  2007-2009

452 (23.6)

146 (32.3)

 

50 (20.0)

 

96 (47.5)

 

  2010-2012

494 (25.8)

126 (25.5)

 

56 (20.0)

 

70 (32.7)

 

Screening status

  

0.162

 

0.005

 

0.247

  Non-screen

1110 (57.9)

372 (33.5)

 

171 (36.3)

 

201 (31.5)

 

  Screen detected

808 (42.1)

247 (30.6)

 

147(28.0)

 

100 (35.3)

 

Deprivation

  

0.257

 

0.795

 

0.147

  Dep 1-2

213 (11.1)

55 (25.8)

 

29 (28.7)

 

26 (23.2)

 

  Dep 3-4

206 (10.7)

66 (32.0)

 

36 (34.3)

 

30 (29.7)

 

  Dep 5-6

487 (25.4)

161 (33.1)

 

75 (29.8)

 

86 (36.6)

 

  Dep 7-8

532 (27.7)

174 (32.7)

 

98 (32.7)

 

76 (32.8)

 

  Dep 9-10

480 (25.0)

163 (34.0)

 

80 (33.6)

 

83 (34.3)

 

Primary surgery

  

0.913

 

0.014

 

0.058

  BCS

1318 (68.7)

425 (32.2)

 

260 (30.4)

 

165 (35.6)

 

  Mastectomy

600 (31.3)

194 (32.3)

 

58 (40.8)

 

136 (29.7)

 

Re-excision

  

<0.001

 

<0.001

 

0.002

  No

1659 (86.5)

491 (29.6)

 

250 (28.6)

 

241 (30.7)

 

  Yes

259 (13.5)

128 (49.4)

 

68 (55.3)

 

60(44.1)

 

Distance from hospital

  

0.019

 

0.021

 

0.540

  <10 km

630 (32.8)

192 (30.5)

 

94 (28.1)

 

98 (33.1)

 

  10-50 km

740 (38.6)

221 (29.9)

 

107 (29.2)

 

114 (30.5)

 

  50-100 km

462 (24.1)

169 (36.6)

 

100 (38.9)

 

69 (33.7)

 

  >100 km

86 (4.5)

37 (43.0)

 

17 (43.6)

 

20 (42.6)

 

Surgical facility type

  

<0.001

 

0.009

 

0.001

  Private

632 (33.0)

163 (25.8)

 

73 (25.8)

 

90 (25.8)

 

  Public

1286 (67.0)

456 (35.5)

 

245 (34.4)

 

211 (36.8)

 

Charlson score

  

0.175

 

0.434

 

0.520

  0

1677 (87.4)

534 (31.8)

 

265 (31.7)

 

269 (32.0)

 

  1+

241 (12.6)

85 (35.3)

 

53 (33.3)

 

32 (39.0)

 
  1. (Univariate analysis for factors associated with delay in first adjuvant therapy a, delay in radiation therapy longer than 90 days and delay in chemotherapy longer than 60 days for women with newly diagnosed invasive breast cancer in the Waikato, New Zealand during 1999-2012.
  2. adelay in radiation therapy longer than 90 days or delay in chemotherapy longer than 60 days.