Table 1. Frequency of Positive Children in First and Second Urinary Screening.

Screening	Age, y	Actual Number	Hematuria, No. of Positive Cases (%)	P	Proteinuria, No. of Positive Cases (%)	P	Hematuria, and Proteinuria, No. of Positive Cases (%)	P
First Urinalysis				0.082		0.896		0.279
	5–10	847	13 (1.54)		30 (3.54)		3 (0.35)
	11–15	1396	37 (3.5)		48 (3.44)		2 (0.14)
Second urinalysis		123	9 (0.40)a		5 (0.22)a		2 (0.09)a

^aPercentages (in second urinalysis) are expressed as a percentage of the total study population (number of positive children ÷ total screened population × 100)