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Table 1 Baselines characteristics of participants,weighted

From: Association between body roundness index and prevalence of kidney stone in the U.S: a study based on the NHANES database

Characteristic

Nonstone formers

Stone formers

P-value

N = 28,099

N = 2891

Age(years)

46.49 (46.03 ,46.95)

53.12 (52.52 ,53.73)

< 0.0001

LN(BRI)Index

1.58 (1.57 ,1.59)

1.73 (1.71 ,1.75)

< 0.0001

Gender(%)

  

< 0.0001

Male

47.74 (47.07 ,48.42)

54.92 (52.33 ,57.49)

 

Female

52.26 (51.58 ,52.93)

45.08 (42.51 ,47.67)

 

Race(%)

  

< 0.0001

Mexican American

14.85 (12.99 ,16.93)

11.42 (9.45 ,13.74)

 

White

65.07 (62.19 ,67.85)

76.36 (73.23 ,79.22)

 

Black

11.77 (10.34 ,13.36)

6.08 (5.08 ,7.27)

 

Other Race

8.30 (7.44 ,9.26)

6.14 (4.97 ,7.57)

 

Education Level(%)

  

0.0978

Less than high school

20.53 (19.12 ,22.02)

19.90 (18.01 ,21.94)

 

High school

28.80 (27.57 ,30.06)

31.50 (28.84 ,34.28)

 

More than high school

50.67 (48.80 ,52.53)

48.60 (45.60 ,51.61)

 

Marital Status(%)

  

< 0.0001

Cohabitation

62.90 (61.64 ,64.14)

69.28 (66.79 ,71.67)

 

Solitude

37.10 (35.86 ,38.36)

30.72 (28.33 ,33.21)

 

Alcohol(%)

  

0.8441

Yes

60.60 (59.13 ,62.06)

59.95 (56.95 ,62.88)

 

No

18.57 (17.51 ,19.68)

19.23 (17.08 ,21.58)

 

Unclear

20.83 (19.72 ,21.97)

20.82 (18.22 ,23.68)

 

High Blood Pressure(%)

  

< 0.0001

Yes

29.78 (28.79 ,30.79)

46.23 (43.36 ,49.14)

 

No

70.22 (69.21 ,71.21)

53.77 (50.86 ,56.64)

 

Diabetes(%)

  

< 0.0001

Yes

8.57 (8.09 ,9.07)

17.57 (15.92 ,19.35)

 

No

91.43 (90.93 ,91.91)

82.43 (80.65 ,84.08)

 

Smoked(%)

  

0.0001

Yes

43.58 (42.35 ,44.81)

49.28 (46.46 ,52.10)

 

No

56.42 (55.19 ,57.65)

50.72 (47.90 ,53.54)

 

Physical Activity(%)

  

0.0015

Never

26.39 (25.42 ,27.39)

30.48 (28.33 ,32.72)

 

Moderate

31.90 (30.94 ,32.87)

31.09 (28.82 ,33.45)

 

Vigorous

41.71 (40.59 ,42.84)

38.43 (35.85 ,41.08)

 

Asthma(%)

  

0.0022

Yes

85.47 (84.78 ,86.14)

82.66 (80.75 ,84.43)

 

No

14.53 (13.86 ,15.22)

17.34 (15.57 ,19.25)

 

Coronary Artery Disease(%)

  

< 0.0001

Yes

3.02 (2.66 ,3.43)

6.33 (5.30 ,7.55)

 

No

96.98 (96.57 ,97.34)

93.67 (92.45 ,94.70)

 

Cancers(%)

  

< 0.0001

Yes

9.49 (8.99 ,10.01)

15.70 (14.17 ,17.36)

 

No

90.51 (89.99 ,91.01)

84.30 (82.64 ,85.83)

 

PIR(%)

  

0.1121

<1.3

20.30 (19.05 ,21.62)

18.32 (16.59 ,20.18)

 

≥ 1.3<3.5

32.52 (31.29 ,33.77)

34.93 (32.43 ,37.52)

 

≥ 3.5

39.61 (37.77 ,41.47)

39.75 (36.56 ,43.02)

 

Unclear

7.57 (6.93 ,8.27)

7.00 (5.77 ,8.47)

 

Serum Cholesterol(%)

  

0.0332

Lower

46.40 (45.41 ,47.40)

48.53 (46.08 ,50.98)

 

Higher

49.12 (48.07 ,50.16)

48.11 (45.81 ,50.43)

 

Unclear

4.48 (4.07 ,4.93)

3.36 (2.60 ,4.33)

 

Serum Uric Acid(%)

  

< 0.0001

Lower

46.58 (45.75 ,47.41)

40.43 (38.05 ,42.86)

 

Higher

48.93 (47.96 ,49.91)

56.20 (53.59 ,58.77)

 

Unclear

4.49 (4.07 ,4.94)

3.37 (2.61 ,4.34)

 

METS-IR(%)

  

< 0.0001

Lower

41.91 (40.68 ,43.15)

30.65 (28.30 ,33.10)

 

Higher

37.41 (36.07 ,38.77)

46.34 (43.53 ,49.17)

 

Unclear

20.68 (19.07 ,22.38)

23.01 (20.28 ,25.98)

 

Serum Creatinine(%)

  

< 0.0001

Lower

46.89 (45.90 ,47.87)

39.73 (37.05 ,42.48)

 

Higher

48.64 (47.59 ,49.70)

56.96 (54.26 ,59.61)

 

Unclear

4.47 (4.06 ,4.92)

3.31 (2.56 ,4.27)

 
  1. For continuous variables: survey-weighted mean (95% CI), P-value was by survey-weighted linear regression (svyglm)
  2. For categorical variables: survey-weighted percentage (95% CI), P-value was by survey-weighted Chi-square test (svytable)
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