Worry Is Good for Breast Cancer Screening: A Study of Female Relatives from the Ontario Site of the Breast Cancer Family Registry
Table 3
Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the association between worry and year one follow-up breast cancer-screening behaviors for female relatives from the Ontario site of the Breast Cancer Family Registry.
Worry
Adjusted* OR (95% CI)
Low
Medium
High
Low versus medium
High versus medium
Likelihood ratio
N = 305
N = 433
N = 163
Test∫P value
Mammogram screening†
All women
No
137 (46.4)
160 (38.7)
74 (49.0)
1.00
1.00
Yes
158 (53.6)
253 (61.3)
77 (51.0)
0.66 (0.45, 0.98)‡
0.73 (0.46, 1.15)
0.034
Women at low familial risk
No
73 (49.0)
100 (49.8)
45 (59.2)
1.00
1.00
Yes
76 (51.0)
101 (50.2)
31 (40.8)
0.90 (0.52, 1.56)
0.70 (0.34, 1.48)
0.372
Women at moderate or high familial risk
No
64 (43.8)
60 (28.3)
29 (38.7)
1.00
1.00
Yes
82 (56.2)
152 (71.7)
46 (61.3)
0.52 (0.30, 0.90)‡
0.77 (0.41, 1.44)
0.060
CBE screening†
All women
No
89 (30.4)
115 (27.8)
64 (43.2)
1.00
1.00
Yes
204 (69.6)
298 (72.2)
84 (56.8)
0.88 (0.61, 1.25)
0.52 (0.34, 0.82)§
0.019
Women at low familial risk
No
45 (30.4)
55 (27.2)
33 (45.8)
1.00
1.00
Yes
103 (69.6)
147 (72.8)
39 (54.2)
0.92 (0.54, 1.57)
0.40 (0.21, 0.76)§
0.037
Women at moderate or high familial risk
No
44 (30.3)
60 (28.4)
31 (40.8)
1.00
1.00
Yes
101 (69.7)
151 (71.6)
45 (59.2)
0.86 (0.53, 1.41)
0.67 (0.36, 1.26)
0.246
Breast ultrasound screening†
All women
No
276 (92.9)
378 (90.9)
135 (86.5)
1.00
1.00
Yes
21 (7.1)
38 (9.1)
21 (13.5)
1.00 (0.53, 1.88)
1.90 (1.00, 3.62)
0.200
Women at low familial risk
No
145 (96.0)
185 (89.4)
68 (86.1)
1.00
1.00
Yes
6 (4.0)
22 (10.6)
11 (13.9)
0.53 (0.19, 1.46)
1.80 (0.75, 4.36)
0.950
Women at moderate or high familial risk
No
131 (89.7)
193 (92.3)
67 (87.0)
1.00
1.00
Yes
15 (10.3)
16 (7.7)
10 (13.0)
1.76 (0.78, 3.96)
2.36 (0.91, 6.10)
0.051
ll models were corrected for familial correlation and were adjusted for age, education, annual frequency of visiting a health care facility, perceived breast cancer risk, and the corresponding baseline screening behavior. Models for all women were additionally adjusted for familial risk.
†Excluded women who had a non screening mammogram (), CBE (), or breast ultrasound ().
‡Wald test .
§Wald test . ∫Likelihood ratio test compared the model with worry defined as a continuous (0, 1, 2) variable and the model with worry defined as a categorical (low, medium, and high) variable. CBE: clinical breast examination.
