Table 2 .
Bladder Management Difficulties items and IRT parameters
| Item ID | Response set* | Item stem | Slope | Threshold 1 | Threshold 2 | Threshold 3 | Threshold 4 |
|---|---|---|---|---|---|---|---|
| rToiletBL_1 | A | Bladder management interfered with my sleep | 1.16719 | 0.49669 | 1.32225 | 2.18143 | 2.98756 |
| rToiletBL_5 | A | I worried that I would have a bladder accident | 2.76165 | 0.17128 | 0.82065 | 1.43408 | 1.83494 |
| rToiletBL_16 | A | I worried about performing my bladder program | 1.61663 | 1.13981 | 1.85039 | 2.63301 | 3.22778 |
| rToiletBL_23 | A | I was sad / depressed because of problems with bladder functioning | 2.04375 | 0.80860 | 1.43685 | 2.09764 | 2.59699 |
| rToiletBL_30 | A | Bladder accidents limited my independence | 3.14633 | 0.89336 | 1.33440 | 1.84038 | 2.33832 |
| rToiletBL_31 | A | I was frustrated by bladder accidents | 4.20586 | 0.55064 | 1.04089 | 1.49926 | 1.87459 |
| rToiletBL_32 | A | I was bothered by urine leakage | 2.86357 | 0.34123 | 0.92878 | 1.56539 | 2.14690 |
| rToiletBL_39 | B | I spent a lot of time taking care of my bladder program | 1.36346 | 0.10172 | 0.79277 | 1.46572 | 2.04802 |
| rToiletBL_42 | B | I restricted my fluid intake in order to manage my bladder | 1.04545 | 0.40994 | 0.92706 | 1.98277 | 2.97543 |
| rToiletBL_72 | B | Bladder accidents have disrupted my daily activities | 3.85401 | 0.66154 | 1.06174 | 1.82561 | 2.21694 |
| rToiletBL_73 | B | I had to stop what I was doing because of a bladder accident | 3.58787 | 0.58616 | 1.05381 | 1.83373 | 2.20367 |
| rToiletBL_76 | B | I had bladder accidents | 3.79297 | 0.35862 | 0.95416 | 1.67111 | 1.94110 |
| rToiletBL_80 | C | I felt my bladder management was under control | 1.27867 | 0.50109 | 1.57824 | 2.33976 | 2.54941 |
| rToiletBL_Com11 | B | I worried that I would have a bladder accident in public | 2.49816 | 0.47227 | 1.04258 | 1.79473 | 2.27231 |
| rToiletBL_Com26 | A | I worried about performing my bladder program in a public restroom | 1.65331 | 1.17300 | 1.70896 | 2.39132 | 3.19058 |
*Context for all items was: ‘Lately’. Response set A was: 1 = Not at all/2 = A little bit/3 = Somewhat/4 = Quite a bit/5 = Very much. Response set B was: 1 = Never/2 = Rarely/3 = Sometimes/4 = Often/5 = Always. C was: 1 = Always/2 = Often/3 = Sometimes/4 = Rarely/5 = Never.
Bold Font indicates the items selected for the short form.
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