Accuracy of Self-Reported Breast Cancer Information among Women from the Ontario Site of the Breast Cancer Family Registry

Table 5

Odds ratios (ORs) and 95% confidence intervals (CIs) for factors potentially associated with agreement between questionnaire and medical record information for specific types of chemotherapy medication in 939 women with breast cancer.

	Cyclophosphamide	Fluorouracil	Methotrexate	Epirubicin	Doxorubicin	Docetaxel
	OR^1 (95% CI)	OR^1 (95% CI)	OR^1 (95% CI)	OR^1 (95% CI)	OR^1 (95% CI)	OR^1 (95% CI)
Age at diagnosis^1	0.95 (0.92, 0.97)	0.95 (0.93, 0.98)	0.96 (0.92, 0.99)	0.99 (0.96, 1.03)	0.96 (0.92, 1.00)	1.01 (0.96, 1.06)
Recall period^1	0.72 (0.62, 0.84)	0.80 (0.69, 0.93)	0.88 (0.75, 1.03)	0.92 (0.77, 1.11)	0.84 (0.71, 1.00)	1.31 (0.97, 1.76)
Marital status (yes versus no)	0.74 (0.46, 1.20)	0.78 (0.48, 1.27)	0.78 (0.45, 1.38)	0.84 (0.45, 1.57)	0.84 (0.45, 1.56)	1.64 (0.79, 3.42)
English speaking (yes versus no)	1.98 (1.05, 3.73)	1.18 (0.97, 2.34)	1.47 (0.76, 2.85)	2.27 (1.16, 4.43)	0.76 (0.33, 1.75)	1.59 (0.59, 4.31)
Breast cancer recurrence (yes versus no)	0.81 (0.40, 1.64)	0.59 (0.29, 1.19)	0.88 (0.40, 1.93)	0.63 (0.29, 1.37)	0.42 (0.20, 0.92)	0.08 (0.03, 0.17)
Family history (yes versus no)	0.95 (0.63, 1.44)	1.09 (0.72, 1.65)	1.02 (0.64, 1.64)	1.10 (0.65, 1.88)	0.88 (0.52, 1.48)	1.42 (0.68, 2.98)
Alcohol consumption^1	1.01 (0.97, 1.05)	1.02 (0.98, 1.06)	1.05 (1.00, 1.11)	1.03 (0.97, 1.08)	1.00 (0.96, 1.05)	0.95 (0.90, 0.99)
Education level
Bachelor/graduate	1.00	1.00	1.00	1.00	1.00	1.00
High school	0.56 (0.33, 0.95)	0.52 (0.30, 0.87)	0.87 (0.47, 1.58)	0.56 (0.28, 1.12)	0.75 (0.39, 1.48)	0.91 (0.36, 2.27)
Some vocational/college	0.68 (0.42, 1.11)	0.67 (0.41, 1.10)	1.02 (0.58, 1.82)	0.56 (0.29, 1.05)	0.99 (0.51, 1.90)	0.56 (0.25, 1.27)
Smoking status
Never	1.00	1.00	1.00	1.00	1.00	1.00
Current	0.66 (0.39, 1.11)	0.83 (0.50, 1.39)	0.54 (0.30, 0.96)	1.50 (0.75, 3.02)	0.35 (0.19, 0.65)	0.64 (0.27, 1.48)
Former	1.02 (0.65, 1.60)	1.19 (0.76, 1.87)	0.95 (0.56, 1.62)	1.19 (0.68, 2.09)	0.76 (0.42, 1.38)	0.75 (0.36, 1.53)
Menopausal status
Premenopausal	1.00	1.00	1.00	1.00	1.00	1.00
Postmenopausal	0.73 (0.36, 1.49)	0.96 (0.47, 1.94)	0.84 (0.38, 1.84)	0.86 (0.35, 2.14)	1.05 (0.43, 2.53)	0.62 (0.19, 2.03)
Unknown	1.60 (0.88, 2.91)	1.63 (0.89, 2.97)	1.48 (0.73, 2.99)	1.09 (0.51, 2.33)	1.64 (0.75, 3.59)	1.54 (0.53, 4.71)

¹Variables were treated as continuous variables.
²Odds ratio (OR) adjusted for all other variables included in the table.