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. 2022 Jul 14;13:914812. doi: 10.3389/fendo.2022.914812

Table 1.

Baseline characteristics of participants,weighted.

Characteristic Nonstone formers Stone formers P-value
N=27711 N=2901
Age (years) 46.812 ± 16.806 53.299 ± 15.576 <0.001
PIR 2.965 ± 1.600 2.982 ± 1.572 0.56
BMI (kg/m2) 28.927 ± 6.829 30.623 ± 6.992 <0.001
Serum Cholesterol (mg/dl) 194.041 ± 41.436 192.268 ± 42.519 0.026
Serum Calcium (mg/dl) 9.392 ± 0.358 9.370 ± 0.379 0.016
Serum Creatinine (mg/dl) 0.875 ± 0.328 0.937 ± 0.570 <0.001
Urine Albumin Creatinine Ratio (mg/g) 31.026 ± 265.850 42.047 ± 267.225 <0.001
METS-IR Index 43.259 ± 12.936 47.291 ± 13.591 <0.001
Gender (%) <0.001
 Male 47.355 54.689
 Female 52.645 45.311
Race (%) <0.001
 Mexican American 14.772 11.198
 White 65.680 76.974
 Black 11.301 5.717
 Other Race 8.247 6.112
Education Level (%) 0.005
 Less than high school 20.372 19.862
 High school 28.532 31.305
 More than high school 51.097 48.833
Marital Status (%) <0.001
 Cohabitation 63.286 69.099
 Solitude 36.714 30.901
Alcohol (%) 0.486
 Yes 60.328 59.463
 No 18.519 19.386
 Unclear 21.152 21.151
High Blood Pressure (%) <0.001
 Yes 30.098 46.704
 No 69.902 53.296
Diabetes (%) <0.001
 Yes 8.752 17.998
 No 91.248 82.002
Smoked <0.001
 Yes 43.575 49.511
 No 56.425 50.489
Physical Activity (%) <0.001
 Never 26.738 31.021
 Moderate 31.829 31.227
 Vigorous 41.433 37.753
Asthma (%) <0.001
 No 85.474 82.656
 Yes 14.526 17.344
Total Kcal (%) 0.045
 Tertile 1 24.748 24.100
 Tertile 2 28.386 30.899
 Tertile 3 30.846 30.930
 Unclear 16.020 14.071
Total Sugar (%) 0.174
 Tertile 1 23.723 24.460
 Tertile 2 24.612 23.062
 Tertile 3 24.438 25.611
 Unclear 27.226 26.867
Total Water (%) 0.005
 Tertile 1 23.778 22.598
 Tertile 2 28.903 30.070
 Tertile 3 31.299 33.261
 Unclear 16.020 14.071
Total Fat (%) 0.005
 Tertile 1 23.778 22.598
 Tertile 2 28.903 30.070
 Tertile 3 31.299 33.261
 Unclear 16.020 14.071

Statistically significant: p<0.05; Mean+SD for continuous variables: P value was calculated by weighted linear regression model.

%for Categorical variables: P value was calculated by weighted chi-square test.

BMI, Body mass index (kg/m2); PIR, Ratio of family income to poverty.