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Table 3 Comparison of the laterality of lithiasis between 1965 and 2014 by decade

From: Retrospective epidemiological study of urolithiasis in western Algeria over a period of 50 years

Laterality Periods P
1965–1974 1975–1984 1985–1994 1995–2004 2005–2014
Number % Number % Number % Number % Number %
Left side 22 41.5 201 48.6 298 46.1 339 48.2 404 50.4 NS (chi-square calculated
Right side 31 58.5 213 51.4 349 53.9 364 51.8 398 49.6 value = 1.8877 DF = 4)