Table 1 General Characteristics of Participants.

From: Bidirectional association between gallstones and renal stones: Two longitudinal follow-up studies using a national sample cohort

Characteristics

Study I

Study II

Gallstone (n, %)

Control I (n, %)

P-value

Renal stone (n, %)

Control II (n, %)

P-value

Age (years old)

  

1.000

  

1.000

   0–4

15 (0.1)

60 (0.1)

 

15 (0.1)

60 (0.1)

 

   5–9

9 (0.0)

36 (0.0)

 

29 (0.1)

116 (0.1)

 

   10–14

29 (0.1)

116 (0.1)

 

91 (0.4)

364 (0.4)

 

   15–19

171 (0.8)

684 (0.8)

 

443 (1.9)

1,772 (1.9)

 

   20–24

292 (1.4)

1,168 (1.4)

 

845 (3.6)

3,380 (3.6)

 

   25–29

684 (3.3)

2,736 (3.3)

 

1,595 (6.8)

6,380 (6.8)

 

   30–34

1,164 (5.6)

4,656 (5.6)

 

2,307 (9.8)

9,228 (9.8)

 

   35–39

1,505 (7.3)

6,020 (7.3)

 

2,740 (11.6)

10,960 (11.6)

 

   40–44

1,867 (9.0)

7,468 (9.0)

 

2,947 (12.5)

11,788 (12.5)

 

   45–49

2,073 (10.0)

8,292 (10.0)

 

3,068 (13.0)

12,272 (13.0)

 

   50–54

2,341 (11.3)

9,364 (11.3)

 

2,809 (11.9)

11,236 (11.9)

 

   55–59

2,160 (10.4)

8,640 (10.4)

 

2,279 (9.7)

9,116 (9.7)

 

   60–64

2,197 (10.6)

8,788 (10.6)

 

1,826 (7.7)

7,304 (7.7)

 

   65–69

1,988 (9.6)

7,952 (9.6)

 

1,304 (5.5)

5,216 (5.5)

 

   70–74

1,798 (8.7)

7,192 (8.7)

 

766 (3.2)

3,064 (3.2)

 

   75–79

1,262 (6.1)

5,048 (6.1)

 

360 (1.5)

1,440 (1.5)

 

   80–84

755 (3.6)

3,020 (3.6)

 

145 (0.6)

580 (0.6)

 

   85+

401 (1.9)

1,604 (1.9)

 

46 (0.2)

184 (0.2)

 

Sex

  

1.000

  

1.000

   Male

10,027 (48.4)

40,108 (48.4)

 

15,260 (64.6)

61,040 (64.6)

 

   Female

10,684 (51.6)

42,736 (51.6)

 

8,355 (35.4)

33,420 (35.4)

 

Income

  

1.000

  

1.000

   1 (lowest)

634 (3.1)

2,536 (3.1)

 

284 (1.2)

1,136 (1.2)

 

   2

1,468 (7.1)

5,872 (7.1)

 

1,386 (5.9)

5,544 (5.9)

 

   3

1,200 (5.8)

4,800 (5.8)

 

1,484 (6.3)

5,936 (6.3)

 

   4

1,254 (6.1)

5,016 (6.1)

 

1,646 (7.0)

6,584 (7.0)

 

   5

1,466 (7.1)

5,864 (7.1)

 

1,697 (7.2)

6,788 (7.2)

 

   6

1,623 (7.8)

6,492 (7.8)

 

1,993 (8.4)

7,972 (8.4)

 

   7

1,835 (8.9)

7,340 (8.9)

 

2,384 (10.1)

9,536 (10.1)

 

   8

2,147 (10.4)

8,588 (10.4)

 

2,649 (11.2)

10,596 (11.2)

 

   9

2,486 (12.0)

9,944 (12.0)

 

2,992 (12.7)

11,968 (12.7)

 

   10

2,956 (14.3)

11,824 (14.3)

 

3,341 (14.1)

13,364 (14.1)

 

   11 (highest)

3,642 (17.6)

14,568 (17.6)

 

3,759 (15.9)

15,036 (15.9)

 

Region of residence

  

1.000

  

1.000

   Urban

9,290 (44.9)

37,160 (44.9)

 

11,149 (47.2)

44,596 (47.2)

 

   Rural

11,421 (55.1)

45,684 (55.1)

 

12,466 (52.8)

49,864 (52.8)

 

Hypertension

  

1.000

  

1.000

   Yes

9,008 (43.5)

36,032 (43.5)

 

8,367 (35.4)

33,468 (35.4)

 

   No

11,703 (56.5)

46,812 (56.5)

 

15,248 (64.6)

60,992 (64.6)

 

Diabetes Mellitus

  

1.000

  

1.000

   Yes

5,366 (25.9)

21,464 (25.9)

 

4,509 (19.1)

18,036 (19.1)

 

   No

15,345 (74.1)

61,380 (74.1)

 

19,106 (80.9)

76,424 (80.9)

 

Dyslipidemia

  

1.000

  

1.000

   Yes

6,620 (32.0)

26,480 (32.0)

 

6,850 (29.0)

27,400 (29.0)

 

   No

14,091 (68.0)

56,364 (68.0)

 

16,765 (71.0)

67,060 (71.0)

 

Renal stone

  

<0.001*

   

   Yes

563 (2.7)

1,180 (1.4)

 

N/A

N/A

 

   No

20,148 (97.3)

81,664 (98.6)

 

N/A

N/A

 

Gallstone

     

<0.001*

   Yes

N/A

N/A

 

793 (3.4)

1,631 (1.7)

 

   No

N/A

N/A

 

22,822 (96.6)

92,829 (98.3)

 
  1. *Chi-square test, significance at P < 0.05.