Volume 13, Number 1—January 2007
Research
Vaccine Effectiveness Estimates, 2004–2005 Mumps Outbreak, England
Cheryl Cohen*1
, Joanne M. White†, Emma J. Savage†, Judith R. Glynn*, Yoon Choi†, Nick Andrews†, David Brown†, and Mary E. Ramsay†
, Joanne M. White†, Emma J. Savage†, Judith R. Glynn*, Yoon Choi†, Nick Andrews†, David Brown†, and Mary E. Ramsay†
Table 1
Characteristics of reviewed mumps case-patients by number of doses of measles, mumps, rubella vaccine received
| Characteristic | No. doses received (%) | p value* | |||
|---|---|---|---|---|---|
| 0 | 1 | 2 | |||
| Age group, y | |||||
| 2 | 11 (84.6) | 2 (15.4) | – | – | |
| 5–6 | 51 (83.6) | 5 (8.2) | 5 (8.2) | <0.001† | |
| 7–8 | 52 (61.2) | 11 (12.9) | 22 (25.9) | – | |
| 9–10 | 35 (39.8) | 16 (18.2) | 37 (42.1) | – | |
| 11–12 | 14 (21.5) | 18 (27.7) | 33 (50.8) | – | |
| Birth cohort‡ | |||||
| 1993–1995 | 31 (30.1) | 25 (24.3) | 47 (45.6) | <0.001† | |
| 1995–1997 | 42 (48.8) | 12 (14.0) | 32 (37.2) | – | |
| 1997–1999 | 45 (66.2) | 8 (11.8) | 15 (22.1) | – | |
| 1999–2001 | 34 (81.0) | 5 (11.9) | 3 (7.1) | – | |
| 2001–2003 | 11 (84.6) | 2 (15.4) | – | – | |
| Area of residence | |||||
| Outside London | 143 (51.3) | 46 (16.5) | 90 (32.3) | 0.1 | |
| London | 18 (64.3) | 6 (21.4) | 4 (14.3) | – | |
| Data not available | 2 (40.0) | – | 3 (60.0) | – | |
| Sex | |||||
| Female | 63 (48.8) | 19 (14.7) | 47 (36.4) | 0.2 | |
| Male | 100 (55.0) | 32 (17.6) | 50 (27.5) | – | |
| Data not available | – | 1 (100.0) | – | – | |
| Total | 163 (52.2) | 52 (16.7) | 97 (31.1) | – | |
*Fisher exact test.
†Children <2 years of age and 2001–2003 birth cohorts excluded for age group and birth cohort, respectively.
‡Birth cohorts for 2 consecutive school years (i.e., children born October 1–September 30 of the following year).
1Current affiliations: National Institute for Communicable Diseases, Johannesburg, South Africa, and University of the Witwatersrand School of Public Health, Parktown, South Africa
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