Table 6. Standardized mortality ratios (SMRs) in overall and subpopulation of IgAN patients.

		N	Initial age	Final age	Person-year	Observed	Expected	SMR(95% CI)
Overall		1009	36.8±13.7	45.0±14.0	8134.2	44	30.7	1.43(1.04–1.92)
eGFR	≥60	606	32.9±12.2	41.3±13.2	5077.4	15	13.8	1.08(0.61–1.79)
	<60	374	43.4±13.6	50.9±13.2	2825.6	28	16.5	1.70(1.13–2.46)
Proteinuria	<1 g/day	341	33.8±13.1	41.0±13.3	2445.5	6	6.2	0.97(0.36–2.12)
	≥1 g/day	572	39.1±13.7	47.7±13.7	4941.5	36	21.7	1.66(1.16–2.29)
SBP	<140	768	35.2±13.1	42.8±13.4	5911.3	18	18.3	0.98(0.58–1.56)
	≥140	230	42.2±14.1	51.4±13.9	2125.2	23	12.3	1.88(1.19–2.82)
Men		495	36.1±14.7	45.0±15.0	4403.6	29	23.8	1.22(0.82–1.75)
eGFR	≥60	309	31.6±12.9	40.7±13.6	2827.9	10	10.2	0.98(0.47–1.81)
	<60	173	44.6±14.0	53.1±13.5	1482.8	18	13.4	1.34(0.80–2.13)
Proteinuria	<1 g/day	143	31.5±13.7	40.1±14.0	1225.5	3	1.9	1.57(0.32–4.58)
	≥1 g/day	307	38.7±14.4	47.8±14.3	2791.7	12	4.6	2.60(1.35–4.55)
SBP	<140	356	34.4±14.3	43.0±14.5	3092.0	12	14.1	0.85(0.44–1.49)
	≥140	135	40.6±14.9	50.2±14.6	1299.1	15	9.7	1.55(0.87–2.56)
Women		514	37.5±12.6	45.0±13.0	3730.6	15	6.9	2.17(1.21–3.57)
eGFR	≥60	297	34.4±11.3	41.9±12.7	2249.5	5	3.7	1.36(0.44–3.18)
	<60	201	42.4±13.2	49.0±12.8	1342.8	10	3.1	3.24(1.55–5.95)
Proteinuria	<1 g/day	198	35.5±12.4	41.6±2.9	1220.0	3	4.2	0.71(0.15–2.07)
	≥1 g/day	265	39.4±12.7	47.5±13.0	2149.8	24	17.1	1.40(0.90–2.08)
SBP	<140	412	35.9±12.0	42.7±12.4	2819.3	6	4.2	1.43(0.53–3.12)
	≥140	95	44.5±12.5	53.1±12.7	826.1	8	2.6	3.09(1.34–6.10)

Abbreviations: SMR, standardized mortality ratio; CI, confidence interval; eGFR, estimated glomerular filtration rate; SBP, systolic blood pressure.