Table 3.

Factorial validity of the UTI-SIQ-8

Items	Item loadings
	Factor 1	Factor 2
Day 0*
Urgency	0.87	−0.03
Dysuria	0.66	0.17
Frequency	0.88	−0.25
Low abdominal pain	−0.03	0.96
Impairment due to urgency	0.86	0.05
Impairment due to dysuria	0.67	0.22
Impairment due to frequency	0.88	−0.06
Impairment due to pain	−0.07	0.97
Day 1†
Urgency	0.91	−0.06
Dysuria	0.76	0.00
Frequency	0.87	−0.04
Low abdominal pain	0.01	0.97
Impairment due to urgency	0.88	0.04
Impairment due to dysuria	0.84	−0.02
Impairment due to frequency	0.86	0.09
Impairment due to pain	0.01	0.97

*Variance explained: 74%.

†Variance explained: 79%.

UTI-SIQ, urinary tract infection-Symptom and Impairment Questionnaire.