TABLE 1

Comparison of Demographic Characteristics of the Sixth- to 12th-Grade Students During a School-Based Third-Dose MMR Vaccine Intervention: Orange County, New York, 2009–2010

CharacteristicsStudents Who Did Not Receive a Third Dose (n = 423), n (%)Students Who Received a Third Dose (n = 1755), n (%)χ2P
School<.0001
 School A88 (21)170 (10)
 School B249 (59)1329 (76)
 School C86 (20)256 (15)
Gender.75
 Females234 (55)986 (56)
 Males189 (45)769 (44)
Grade category.042
 6–8201 (48)738 (42)
 9–12222 (52)1017 (58)