Characteristics of the study population (n =197) per tertile of estradiol.

<p>^{a, b, c} Different superscripts indicate significant differences among groups, p<0.05.</p

Determinants of kidney stones (KS) and calcium oxalate stones (COS) for all 197 subjects, respectively.

<p>OR = odds ratio; CI = confidence intervals.</p

Demographic, clinical, and biochemical data.

<p>SD, standard deviation; COS, calcium oxalate stones; NCOS, non-calcium oxalate stones; AAM, age at menopause; TSM, time since menopause ; BMI, body mass index; WDC, water drink consumption; WET, working environment temperature; HTN, hypertension; DM, diabetes mellitus; RA, rural area of life; T, testosterone; E2, estradiol. P-values were determined using the Wilcoxon rank sum test, or the chi-square tests between all patients and controls subjects. Post-hoc analyses were performed for comparison of variables between the following cohorts: COS, NCOS, controls, COS versus NCOS, COS versus controls, and NCOS versus controls, with p-values<0.05 considered significant."* "indicate group is significantly from the control."#" indicate group is significantly from the COS.</p

Spearman’s correlation using estradiol (E2) and testosterone (T) as dependent variables in all 197 subjects.

<p>Spearman’s correlation using estradiol (E2) and testosterone (T) as dependent variables in all 197 subjects.</p

Odds ratios (OR) and 95% confidence intervals (CIs) for kidney stones (KS) and calcium oxalate stones (COS) according to tertiles of E2 levels.

<p>^a Reference OR (1.00) is the lowest tertile of E2 level for kidney stones (KS) and calcium oxalate stones (COS). ^b Adjusted factors=Age +AAM + TSM + BMI + WDC + WET +HTN + DM +RA +T</p

Univariate comparisons of the 24-hour urine compositions between the standard weight adults and the underweight, overweight, and obese adults without urolithiasis.

<p>Univariate comparisons of the 24-hour urine compositions between the standard weight adults and the underweight, overweight, and obese adults without urolithiasis.</p

Univariate comparisons of the 24-hour urine compositions between the overweight and obese adults without urolithiasis.

<p>Univariate comparisons of the 24-hour urine compositions between the overweight and obese adults without urolithiasis.</p

Results of the multivariate logistic regression analysis of the standard weight adults and the overweight and obese adults without urolithiasis.

<p>Results of the multivariate logistic regression analysis of the standard weight adults and the overweight and obese adults without urolithiasis.</p

Baseline characteristics of all the participants in the four weight status groups.

<p>Baseline characteristics of all the participants in the four weight status groups.</p

Comparisons of the baseline characteristics between the overweight and obese adults without urolithiasis.

<p>Comparisons of the baseline characteristics between the overweight and obese adults without urolithiasis.</p