Prevalence of Bleeding Symptoms among Adolescents and Young Adults in the Capital City of Saudi Arabia

Table 1

Sampling frame for determining the prevalence of bleeding symptoms.

	Intermediate schools			High schools
	Number of participants	Number of schools	Number of clusters	Number of participants	Number of schools	Number of clusters
Boys	81,869	336	15	72,621	194	10
Girls	84,607	419	15	80,136	293	10
Total	166,476	755	30	152,757	487	20