Table 1. Comparative analysis of baseline data of two groups.
| Variables | Study group (N=75) | Control group (N=71) | t/χ2/Z | P |
|---|---|---|---|---|
| Age (years) | 63.17±9.38 | 62.01±9.45 | 0.744 | 0.458 |
| Height (cm) | 161.76±4.84 | 162.49±4.76 | −0.922 | 0.358 |
| Body weight (kg) | 68.24±8.54 | 69.07±8.18 | −0.599 | 0.550 |
| Smoking status | ||||
| No smoking | 68 | 68 | Fisher | 0.497 |
| ≤5 pieces/day | 5 | 3 | ||
| One bag a day | 2 | 0 | ||
| Coffee consumption | ||||
| ≤1 cup/day | 72 | 67 | 0.006 | 0.941 |
| >1 cup/day | 3 | 4 | ||
| Alcohol consumption | Fisher | 1.000 | ||
| No alcohol | 73 | 70 | ||
| Drinking occasionally | 1 | 0 | ||
| Alcohol | 1 | 1 | ||
| Age at first menarche (years) | 12.01±1.58 | 11.77±1.61 | 0.902 | 0.368 |
| Disease course (length) (years) | 4.00 (1.00, 5.00) | 5.00 (1.00, 6.00) | −0.776 | 0.438 |
| Age of pregnancy (years) | 22.94±2.95 | 23.45±3.56 | −0.909 | 0.365 |
| No. of deliveries (parity, parities) | 1.00 (1.00, 1.00) | 1.00 (1.00, 2.00) | −1.418 | 0.156 |
| No. of vaginal deliveries | 1.00 (1.00, 1.00) | 1.00 (1.00, 2.00) | −1.106 | 0.269 |
| No. of caesarean sections | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | −0.338 | 0.736 |
| Blood cell count and classification | ||||
| WBC (×109/L) | 7.05±1.89 | 7.31±1.72 | −0.849 | 0.397 |
| Hb (g/L) | 111.33±18.54 | 108.39±16.40 | 1.012 | 0.313 |
| PLT (×109/L) | 231.00 (195.00, 256.00) | 211.00 (185.00, 245.00) | −0.888 | 0.375 |
| Blood biochemistry | ||||
| ALT (U/L) | 32.88±5.29 | 30.63±3.55 | 0.939 | 0.349 |
| ALB (g/L) | 40.60±3.58 | 40.59±3.26 | 0.029 | 0.977 |
| BUN (mg/dL) | 5.16±1.27 | 5.26±1.08 | −0.512 | 0.609 |
| Cr (μmol/L) | 63.73±15.45 | 60.73±12.08 | 1.301 | 0.195 |
| Coagulation function | ||||
| APTT (s) | 28.90 (27.30, 31.90) | 29.60 (27.60, 32.30) | −0.903 | 0.367 |
| INR | 0.95 (0.89, 1.02) | 0.98 (0.91, 1.04) | −1.214 | 0.225 |
| TT (s) | 13.80 (12.90, 15.30) | 13.30 (12.40, 14.60) | −1.890 | 0.059 |
| Urine | ||||
| WBC (×109/L) | 7.00 (4.00, 52.00) | 6.00 (3.00, 16.00) | −1.669 | 0.095 |
| RBC (×109/L) | 6.00 (3.00, 8.00) | 6.00 (3.00, 23.00) | −0.636 | 0.525 |
| Urine protein | ||||
| 1-weakly positive | 1 | 3 | 0.317 | 0.574 |
| 2-negative | 74 | 68 | ||
| Bladder detrusor pressure (cmH2O) | 41.00 (30.50, 52.00) | 41.00 (26.50, 51.50) | −0.911 | 0.362 |
| Average urine flow rate (mL/s) | 13.40 (11.45, 16.70) | 15.60 (12.70, 18.50) | −1.886 | 0.059 |
| Maximum urinary flow rate (mL/s) | 16.50 (14.75, 19.70) | 17.50 (15.65, 21.65) | −1.304 | 0.192 |
| Maximum bladder volume (mL) | 300.00 (215.00, 345.00) | 300.00 (180.00, 300.00) | −1.303 | 0.193 |
| Residual urine volume (mL) | 0.00 (0.00, 15.00) | 0.00 (0.00, 0.00) | −1.475 | 0.140 |
| MUPP (cmH2O) | 37.83 (25.70, 43.72) | 35.76 (20.82, 41.45) | −1.718 | 0.086 |
| PdetQmax (cmH2O) | 37.20 (34.25, 44.00) | 36.60 (32.45, 42.00) | −1.500 | 0.134 |
Data are shown as mean ± standard deviation, number (percentage) or median (interquartile spacing). WBC, white blood cell; Hb, hemoglobin; PLT, platelet count; ALT, alanine aminotransferase; ALB, albumin; BUN, blood urea nitrogen; Cr, creatinine; APTT, activated partial thromboplastin time; INR, international normalized ratio; TT, thrombin time; RBC, red blood cell; PdetQmax, detrusor pressure at maximum flow velocity; MUPP, micturition urethral pressure measurement.