Baseline patient characteristics
| Elderly (n=92) | Non-elderly (n=292) | Total | P value* | |
| Age, mean (SD) | 66.3 (3.79) | 50.6 (6.24) | 54.4 (8.84) | <0.001 |
| BMI, mean (SD)† | 25.3 (4.11) | 24.7 (5.11) | 24.9 (4.85) | 0.577 |
| Race, no (%) | 0.708 | |||
| Han | 89 (96.7) | 285 (97.6) | 374 (97.4) | |
| Minority | 3 (3.3) | 7 (2.4) | 10 (2.6) | |
| Educational level, no (%) | 0.004 | |||
| Primary education or below | 33 (35.9) | 119 (40.8) | 152 (39.6) | |
| Secondary education | 48 (52.2) | 164 (56.2) | 212 (55.2) | |
| Tertiary education | 11 (12.0) | 9 (3.1) | 20 (5.2) | |
| Childbearing, no (%) | 92 (100.0) | 290 (99.3) | 382 (99.5) | >0.999 |
| Menopause, no (%) | 89 (96.7) | 163 (55.8) | 252 (65.6) | <0.001 |
| Coexisting diseases, no (%)‡ | 21 (22.8) | 33 (11.3) | 54 (14.1) | 0.006 |
| Duration, mean (SD) years | 9.4 (8.44) | 6.1 (6.11) | 6.9 (6.87) | <0.001 |
| 72-hour IEF (mean) | 11.6 (11.41) | 8.0 (8.10) | 8.8 (9.11) | <0.001 |
| 1 hour AUL (mean) | 20.6 (26.98) | 17.6 (22.76) | 18.3 (23.84) | 0.286 |
| ICIQ-SF score (mean)§ | 11.4 (3.63) | 10.6 (3.21) | 10.8 (3.33) | 0.052 |
*All tests were two sided. P<0.05 was considered significant.
†Calculated as weight in kilograms divided by height in metres squared.
‡Coexisting diseases include disease have no affect outcome measurements and confirm to inclusion criteria.
§ICIQ-SF scoring was additive (0–21), with higher scores indicating worse outcomes.
AUL, the amount of urine;BMI, body mass index; ICIQ-SF, International Consultation on Incontinence Questionnaire-Short Form; IEF, incontinence episode frequency.