Validation of a patient-administered questionnaire to measure the activity impairment experienced by women with uncomplicated urinary tract infection: the Activity Impairment Assessment (AIA)

Table 3 Discriminant validity of the AIA – mean scores by clinical evaluation of 5 symptoms

Symptom	Mean AIA total score by clinical evaluation				Χ ²
	None	Mild ^a	Moderate ^b	Severe ^c
Dysuria	3.00	5.97	7.19	10.23***	22.04***
Frequency	3.71	3.03	7.50***	9.32**	38.96***
Urgency	3.50	4.37	6.88*	9.68***	37.39***
Suprapubic pain	6.24	6.39	7.97	10.70**	22.46***
Gross hematuria	6.96	7.49	8.26	9.59	7.07

Mann Whitney U tests used to test differences between clinical evaluations ^aNone and Mild, ^bMild and Moderate, ^CModerate and Severe *p < 0.05, **p < 0.01, ***p < 0.001

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