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Table 2 Adjusted odds ratios (ORs) with 95% confidence intervals (CI) for adherence to annual breast screening by breast screening belief factors for female relatives from the Ontario site of the Breast Cancer Family Registry

From: Beliefs about optimal age and screening frequency predict breast screening adherence in a prospective study of female relatives from the Ontario Site of the Breast Cancer Family Registry

Breast Cancer Beliefs Factors

Screening mammogram

Adherers vs. Late-screeners

Adherers vs. Never-screeners

Adherers (N = 329)

Late-screeners (N = 382)

Never-screeners (N = 147)

Adjusted*OR 95% CI

Adjusted*OR 95% CI

Frequency screening mammogram

 Less often (once every  two years or more)

23 (7.0)

97 (26.6)

39 (30.0)

1.00

1.00

 At least once per year

306 (93.0)

267 (73.4)

91 (70.0)

5.02 (2.97, 8.49)

6.82 (3.29, 14.16)

Age start screening mammogram

 ≥50

26 (8.1)

28 (7.6)

11 (7.7)

1.00

1.00

 <50

296 (91.9)

341 (92.4)

132 (92.3)

1.38 (0.75, 2.55)

9.72 (3.26, 29.02)

Importance of Breast Cancer Risk Factors

 High fat diet

 Not at all/Somewhat important

101 (37.5)

144 (44.7)

58 (44.3)

1.00

1.00

 Very/Extremely important

168 (62.5)

178 (55.3)

73 (55.7)

1.22 (0.87, 1.70)

1.23 (0.74, 2.06)

Alcohol use

 Not at all/Somewhat important

172 (63.9)

221 (68.6)

93 (71.0)

1.00

1.00

 Very/Extremely important

97 (36.1)

101 (31.4)

38 (29.0)

1.17 (0.82, 1.67)

1.20 (0.69, 2.07)

Lack of exercise

 Not at all/Somewhat important

105 (39.1)

147 (45.7)

58 (44.3)

1.00

1.00

 Very/Extremely important

164 (60.9)

175 (54.3)

73 (55.7)

1.21 (0.87, 1.68)

1.50 (0.89, 2.52)

Family history of breast cancer

 Not at all/Somewhat important

22 (8.2)

22 (6.8)

10 (7.6)

1.00

1.00

 Very/Extremely important

247 (91.8)

300 (93.2)

121 (92.4)

0.90 (0.47, 1.71)

1.32 (0.45, 3.87)

Likeliness mammogram finding breast cancer

 Not at all/not very likely

122 (37.1)

150 (39.8)

55 (37.9)

1.00

1.00

 Very/somewhat likely

207 (62.9)

227 (60.2)

90 (62.1)

1.10 (0.79, 1.53)

1.24 (0.75, 2.05)

  1. *Adjusted by age at interview, education, visits to health professionals, family risk and were corrected for familial clustering.
  2. p-value = <0.0001.