Table 2.

Chronological trend of upper urinary tract calculi stratified by sex and age over the 6-year period

	2013	2014	2015	2016	2017	2018
Men (%)
18–30	6.8	6.3	6.0	5.8	5.5	5.2
31–40	13.2	12.2	11.6	11.1	10.7	10.7
41–50	23.4	22.2	21.6	21.0	20.4	19.9
51–60	23.1	23.7	24.1	24.3	24.4	24.7
61–70	18.8	20.3	21.2	22.1	22.7	23.2
71–80	11.2	11.7	11.7	11.8	12.0	12.0
>80	3.5	3.6	4.0	4.0	4.3	4.3
Women (%)
18–30	7.5	7.0	6.8	6.5	6.1	5.7
31–40	10.9	10.3	9.8	9.5	9.5	9.5
41–50	22.6	21.9	20.7	19.9	19.3	19.0
51–60	25.2	25.4	25.5	25.5	25.7	25.6
61–70	19.3	20.5	21.4	22.3	22.6	23.2
71–80	11.2	11.3	11.7	11.9	12.1	12.3
>80	3.3	3.6	4.1	4.3	4.7	4.7