Mastectomy rates remain high in Singapore and are not associated with poorer survival after adjusting for age

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Table 3 Logistic regression model of the type of surgery received for standard clinicopathological parameters (n = 1042)

Parameter	Odds ratio	SE	P value	95 % CI
Age at diagnosis	1.04	0.01	<0.01	1.02–1.05
ASA score	1.14	0.15	0.31	0.88–1.49
Clinical presentation^a	2.07	0.34	<0.01	1.50–2.84
Clinical tumour size	7.50	4.62	<0.01	2.24–25.11
Clinically palpable nodes	8.19	5.13	<0.01	2.41–27.92
Pre-operative biopsy	1.19	0.21	0.33	0.84–1.67
ER status	0.78	0.12	0.11	0.57–1.06
Neoadjuvant chemotherapy	1.68	0.74	0.24	0.71–3.98

^aRefers to whether tumours were symptomatic at presentation or were screen-detected