Table 5.

Adjusted healthcare costs of de novo MBC and recurrent MBC patients.

Cost ratios	Total costs	95% CI	OP costs	95% CI	OP drug costs	95% CI	IP costs	95% CI	IP drug costs	95% CI	ER costs	95% CI
Intercept	2,495.53∗	1,898.79 | 3,279.82	789.46∗	608.54 | 1,024.18	174.12∗	117.48 | 258.07	4,056∗	2,855.39 | 5,761.44	1,027.02∗	541.73 | 1,968.25	220.7∗	147.86 | 329.43
Group
BCF	1.00		1.00		1.00		1.00		1.00		1.00
MBC
Recurrent MBC	2.31∗	2.16–2.46	2.62∗	2.46–2.78	4.68∗	4.27–5.14	1.24∗	1.09–1.41	1.81∗	1.42–2.31	1.14∗	1.03–1.27
De novo MBC	12.16∗	10.71–13.82	14.29∗	12.65–16.13	36.31∗	30.32–43.49	2.15∗	1.85–2.51	3.04∗	2.29–4.03	3.39∗	2.84–4.05
BC	8.82∗	8.48–9.17	8.89∗	8.56–9.22	14.85∗	14.03–15.71	1.69∗	1.58–1.81	4.41∗	3.85–5.06	1.54∗	1.46–1.64
Age
20–30	1.00		1.00		1.00		1.00		1.00		1.00
31–40	1.11	0.91–1.35	1.09	0.91–1.32	1.21	0.91–1.59	1.51∗	1.18–1.94	1.78∗	1.13–2.80	1.29	0.96–1.73
41–50	1.10	0.91–1.33	1.17	0.98–1.41	1.23	0.94–1.62	1.29∗	1.01–1.64	1.38	0.89–2.16	1.31	0.98–1.74
51–60	1.29∗	1.06–1.56	1.42∗	1.19–1.71	1.61∗	1.22–2.11	1.25	0.98–1.59	1.28	0.82–1.99	1.40∗	1.05–1.87
61–70	1.61∗	1.32–1.95	1.71∗	1.43–2.06	2.07∗	1.57–2.73	1.35∗	1.06–1.73	1.13	0.72–1.77	1.94∗	1.44–2.60
71–80	1.93∗	1.57–2.37	1.67∗	1.37–2.03	2.00∗	1.47–2.64	1.82∗	1.41–2.36	1.49	0.93–2.40	2.36∗	1.74–3.20
> = 81	2.54∗	1.97–3.27	1.87∗	1.47–2.38	2.05∗	1.43–2.93	2.13∗	1.56–2.90	1.15	0.64–2.04	3.46∗	2.44–4.91
Residential area
Northern	1.00		1.00		1.00		1.00		1.00		1.00
Central	0.45∗	0.37–0.55	0.93	0.77–1.12	0.92	0.70–1.23	0.45∗	0.35–0.59	0.25∗	0.16–0.41	0.42∗	0.32–0.55
Southern	0.49∗	0.40–0.60	1.00	0.83–1.22	0.96	0.72–1.29	0.46∗	0.35–0.60	0.22∗	0.13–0.36	0.47∗	0.35–0.62
Eastern	0.52∗	0.42–0.63	1.04	0.86–1.25	1.02	0.76–1.35	0.53∗	0.41–0.69	0.30∗	0.18–0.48	0.36∗	0.27–0.48
CCI score
CCI = 0	1.00		1.00		1.00		1.00		1.00		1.00
CCI = 1	1.94∗	1.83–2.05	1.87∗	1.78–1.98	2.25∗	2.08–2.44	1.34∗	1.24–1.44	1.50∗	1.31–1.72	1.45∗	1.34–1.57
CCI≥2	3.03∗	2.76–3.33	2.20∗	2.01–2.40	2.83∗	2.48–3.24	2.29∗	2.03–2.58	3.40∗	2.70–4.28	2.28∗	2.00–2.59