Table 3.
Prevalence of and risk factors for CKD in the married population with fertility desire by regions in rural China.
| Eastern region | Central region | Western region | P-value | |
|---|---|---|---|---|
| Participants (n, %) | 513318 (16.60) | 1521785 (49.23) | 1056276 (34.17) | |
| Women (n, %) | 270297 (52.66) | 785916 (51.64) | 541892 (51.30) | <0.001 |
| Age (years, mean ± SD) | 27.74 ± 5.05 | 26.77 ± 8.61 | 27.10 ± 5.29 | <0.001 |
| BMI (kg/m2, mean ± SD) | 22.10 ± 4.06 | 21.88 ± 3.41 | 21.86 ± 4.40 | <0.001 |
| CKD markers (by Asian modified CKD-EPI equation, %) | 3.86 (3.81–3.91) | 2.80 (2.77–2.82) | 2.62 (2.59–2.65) | <0.001 |
| EGFR < 60 mL/min//1.73 m2 (by Asian modified CKD-EPI equation, %) | 0.85 (0.83–0.88) | 0.89 (0.88–0.91) | 0.78 (0.77–0.80) | <0.001 |
| Hematuria (%) | 2.31 (2.27–2.35) | 1.29 (1.27–1.31) | 1.14 (1.12–1.16) | <0.001 |
| Proteinuria (%) | 0.82 (0.79–0.84) | 0.64 (0.63–0.65) | 0.75 (0.73–0.77) | <0.001 |
| Hypertension (%) | 6.78 (6.71–6.85) | 3.40 (3.37–3.43) | 3.83 (3.79–3.86) | <0.001 |
| Diabetes (%) | 0.71 (0.69–0.74.) | 0.87 (0.85–0.88) | 0.56 (0.54–0.57) | <0.001 |
| Obesity (%) | 5.23 (5.17–5.29) | 3.09 (3.06–3.11) | 3.12 (3.09–3.15) | <0.001 |
| HBsAg positive (%) | 6.56 (6.49–6.63) | 5.55 (5.51–5.58) | 5.39 (5.35–5.43) | <0.001 |
Data are represented as n (%), % (95% CI), or mean ± SD.
BMI: body-mass index. CKD: chronic kidney disease. EGFR: estimated glomerular filtration rate. CKD-EPI equation: chronic kidney disease epidemiology collaboration equation. Obesity: BMI ≥ 28 (kg/m2). HBsAg: hepatitis B virus surface antigen. SD: standard deviation. CI: confidence interval.