Table 1 Crosstabulation of stone type and age.

From: Retrospective analysis of urinary tract stone composition in a Chinese ethnic minority colony based on Fourier transform infrared spectroscopy

Stone type

Age

1–10

11–20

21–30

31–40

41–50

51–60

61–70

71–80

81–90

CaOx

1a

10a,b

66b

114b,c,e,f

230b,d,e,f

264a

101a

44a,e

4a,f

CaP

0

0

0

7a

25a,b

39a,b

21a,b

7a,b

3b

ST

0

1a,b

2a,b

8a,b

10a

41b

25b,c

4a,b

0

UA

0

0

0

1a,c

4a

36b

12b,c

1a,b

0

Others

3a

0

0

1b

2b

5b

0

0

0

  1. Note The number of cases is denoted by n, in the two-sided equivalence test for column proportions, values that do not share the same subscripts in the same row and sub-table are significantly different at p < 0.05.