Table 2.

The standardized incidence of ESRD patients requiring RRT in Sweden from 1991 to 2010 in various counties

Counties	Crude IRR (95% CI)	P	IRR (95% CI)a	P	IRR (95% CI)b	P
Stockholm	0.83 (0.79–0.85)	0.001	0.91 (0.88–0.94)	0.001	0.90 (0.86–0.94)	0.001
Uppsala	0.87 (0.81–0.95)	0.002	0.96 (0.88–1.03)	0.28	0.94 (0.87–1.03)	0.17
Södermanland	1.07 (0.99–1.16)	0.06	1.04 (0.96–1.12)	0.37	1.03 (0.95–1.11)	0.44
Östergötland	1.16 (1.10–1.22)	0.001	1.15 (1.08–1.22)	0.001	1.14 (1.08–1.22)	0.001
Jönköping	1.00 (0.93–1.07)	0.97	0.98 (0.91–1.06)	0.60	0.97 (0.90–1.04)	0.48
Kronoberg	0.94 (0.85–1.04)	0.27	0.91 (0.83–1.02)	0.06	0.91 (0.82–1.01)	0.06
Kalmar	1.14 (1.06–1.24)	0.001	1.05 (0.97–1.15)	0.08	1.05 (0.96–1.04)	0.24
Gotland	1.06 (0.89–1.25)	0.52	1.02 (0.86–1.21)	0.80	1.02 (0.86–1.20)	0.84
Blekinge	1.09 (0.99–1.21)	0.07	1.02 (0.92–1.14)	0.71	1.01 (0.91–1.12)	0.88
Skåne	1.04 (0.99–1.07)	0.09	1.03 (0.99–1.07)	0.17	1.02 (0.98–1.06)	0.42
Halland	0.83 (0.76–0.91)	0.001	0.82 (0.76–0.90)	0.001	0.81 (0.75–0.89)	0.001
Västra Götaland	0.96 (0.93–0.99)	0.04	0.97 (0.93–1.01)	0.08	1.01 (0.97–1.05)	0.72
Värmland	1.14 (1.06–1.23)	0.001	1.06 (0.98–1.14)	0.14	1.03 (0.96–1.11)	0.39
Örebro	1.11 (1.03–1.19)	0.006	1.07 (0.99–1.15)	0.08	1.07 (0.99–1.16)	0.06
Västmanland	1.13 (1.05–1.22)	0.002	1.10 (1.02–1.19)	0.01	1.10 (1.02–1.19)	0.01
Dalarna	1.08 (1.00–1.16)	0.05	1.01 (0.93–1.08)	0.98	0.99 (0.92–1.07)	0.86
Gävleborg	1.29 (1.20–1.38)	0.001	1.19 (1.12–1.28)	0.001	1.16 (1.08–1.25)	0.001
Västernorrland	1.25 (1.16–1.34)	0.001	1.15 (1.06–1.23)	0.001	1.14 (1.05–1.23)	0.001
Jämtland	1.19 (1.06–1.32)	0.001	1.09 (0.98–1.21)	0.10	1.08 (0.98–1.21)	0.12
Västerbotten	0.92 (0.85–1.01)	0.06	0.93 (0.86–1.02)	0.08	0.93 (0.86–1.02)	0.12
Norrbotten	1.05 (0.97–1.13)	0.25	1.03 (0.93–1.09)	0.81	0.99 (0.92–1.08)	0.95

The counties which are marked bold are Stockholm, Skåne and Västra Götalands, major contributors to the RRT population. We adjusted for ^agender and age and ^bprimary renal disease (categorized into four groups) and diabetes (type I or II).