From: Retrospective epidemiological study of urolithiasis in western Algeria over a period of 50 years
Localization | Periods | P | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1965–1974 | 1975–1984 | 1985–1994 | 1995–2004 | 2005–2014 | |||||||
Number | % | Number | % | Number | % | Number | % | Number | % | ||
Upper urinary tract | 91 | 48.1 | 467 | 65.6 | 693 | 72.5 | 738 | 71 | 827 | 75.8 | < 0.001 (chi-square calculated |
Low urinary tract | 98 | 51.9 | 245 | 34.4 | 263 | 27.5 | 302 | 29 | 264 | 24.2 | value = 47.44 DF = 4) |