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. 2017 Apr 5;28(11):1677–1684. doi: 10.1007/s00192-017-3319-2

Table 5.

Principal component analysis of Toileting Behavior (TB) scale to test construct validity and results of reliability test (Cronbach’s alpha values)

Questions Premature voiding Place preference Straining voiding Delayed voiding Position preference
Worry about sanity in public toilets 1 0.763*
Avoid public toilets 2 0.881*
Empty the bladder at home 3 0.755*
Try to wait until I come home 4 0.706*
Void without desire:
 At home 5 0.629*
At work/school 6 0.860*
 Home of someone else 7 0.831*
 A public place 8 0.827*
Just in case (preventive) 9 0.758*
Try to delay voiding if I’m busy 10 0.857*
Restrain the desire as long as possible 11 0.819*
Restrain the desire at work/school 12 0.545*
Strain to initiate urinating 13 0.823*
Strain during the whole urinating process 14 0.889*
Strain to empty the bladder completely 15 0.836*
Strain to empty the bladder faster 16 0.645*
Sit down on the seat 17 0.643*
Hover over the toilet 18 0.715*
Squat on the toilet 19 0.751*
Eigen value 3.868 3.048 2.442 1.691 1.483
Explained variance (%) 20.36 16.04 12.86 8.90 7.81
Total 66.0%
Cronbach’s alpha value 0.841 0.809 0.822 0.714 0.542

*Factor loadings: values >0.5 are considered practically significant [21]