Association of shared decision-making with type of breast cancer surgery: a cross-sectional study

Table 3 Multivariate analysis* of factors associated with surgical treatment

	Mastectomy (vs. BCS) N = 1,893 OR* (95% CI)
Predisposing factors
Comorbidities (ref. none)	1.19(1.05-1.34)
Premenopausal (ref. postmenopausal)	1.26(1.11-1.43)
Estrogen receptor (ref: negative)	0.81(0.72-0.91)
Stage, IIb (ref: 0-IIa)	2.55(2.15-3.02)
Shared decision making
Being patient's opinion respected in treatment decision (ref. no)	1.40(1.14-1.72)
Physician's giving information
Breast surgery option (ref. no)	0.34(0.27-0.42)
Using chemotherapy (ref. no)	2.57(2.20-3.01)
Using hormone therapy (ref. no)	2.03(1.77-2.32)

Abbreviation: BCS, breast-conserving surgery; CI, confidence interval
* All analyses weighted to account for differential selection by clinical factors of non-response.
** Results of logistic regression with stepwise selection methods, whose covariates were age at diagnosis, educational level, monthly income, residential area, menopausal status at diagnosis, comorbidity, estrogen receptor, disease stage, patient's participation in treatment decision, physician's giving information on surgery, physician's giving information on chemotherapy, and physician's giving information on hormone therapy, all of which were significant in univariate analyses.

ISSN: 1472-6963