Table 2

Study population

Age 2 and under Group


HMO A

HMO B


# Eligible

# Chart reviewed

# Eligible

# Chart reviewed

UTDa/Ever Refuse

19

15 (78.9%)

255

74 (29.0%)

UTD/Never Refuse

10,446

100 (1%)

18,335

71 (0.4%)

Not UTD/Ever Refuse

77

68 (88.3%)

202

66(32.7%)

Not UTD/Never Refuse

3,715

342 (9.2%)

6,097

104 (1.7%)

Total

14,257

525 (3.68%)

24,889

315 (1.27%)


Age 6 Group


HMO A

HMO B


UTD/Ever Refuse

8

8 (100%)

31

28 (90.3%)

UTD/Never Refuse

3,128

30 (0.96%)

7,789

63 (0.8%)

Not UTD/Ever Refuse

25

24 (96%)

34

31 (91.2%)

Not UTD/Never Refuse

1,960

153 (7.8%)

5,305

72 (1.4%)

Total

5,121

215 (4.20%)

13,159

194 (1.47%)


aUTD: Up-to-date immunization status

Wei et al. BMC Pediatrics 2009 9:18   doi:10.1186/1471-2431-9-18

Open Data