Table 3. All-cause mortality and breast-cancer-specific mortality.

A: Mortality rate ratios (MRRs) for the all-cause mortality ten years after a breast cancer diagnosis for women with SMI and breast cancer compared to women with breast cancer only (N = 42,419), 1980–2012
	Total deaths		MRR (95% CI)
	Without SMI	With SMI	Model 1a	Model 2 b	Model 3 c	Model 4d
With SMI vs. without SMI	41,771	648	1.60 (1.48–1.73)	1.59 (1.47–1.72)	1.57 (1.45–1.70)	1.46 (1.36–1.58)
With schizo vs. without schizo†	41,998	421	1.73 (1.57–1.90)	1.70 (1.54–1.87)	1.71 (1.56–1.89)	1.60 (1.45–1.76)
With bipol vs. without bipol††	42,192	227	1.39 (1.22–1.59)	1.41 (1.24–1.61)	1.35 (1.18–1.54)	1.26 (1.10–1.43)
B: MRRs for breast-cancer-specific cause of death ten years after a breast cancer diagnosis for women with SMI and breast cancer compared to women with breast cancer only (N = 26,078), 1980–2010
	Total deaths		MRR (95% CI)
	Without SMI	With SMI	Model 1a	Model 2 b	Model 3 c	Model 4d
With SMI vs. without SMI	25,731	347	1.38 (1.24–1.54)	1.35 (1.21–1.50)	1.34 (1.21–1.49)	1.29 (1.16–1.44)
With schizo vs. without schizo†	25,840	238	1.55 (1.36–1.76)	1.49 (1.31–1.70)	1.49 (1.31–1.70)	1.44 (1.27–1.64)
With bipol vs. without bipol††	25,969	109	1.12 (0.93–1.35)	1.11 (0.92–1.34)	1.09 (0.90–1.32)	1.05 (0.87–1.27)

Abbreviations: MRR: mortality rate ratio; SMI: severe mental illness; CI: confidence interval; schizo: schizophrenia; bipol: bipolar affective disorder.

^aAdjusted for age and calendar period.

^bAlso adjusted for tumor stage of breast cancer.

^cAlso adjusted for medical comorbidity (i.e., diabetes and the CCI -score, excluding diabetes-related diseases and cancers).

^dAlso adjusted for substance abuse.

^†The ‘No schizophrenia’ -group comprised persons in the general population, including persons with bipolar affective disorder.

^††The ‘No bipolar affective disorder’ -group comprised persons in the general population, including persons with schizophrenia.