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Volume 12, Number 6—June 2006

Research

Social Behavior and Meningococcal Carriage in British Teenagers

Jenny MacLennan*, George Kafatos†, Keith Neal‡, Nick Andrews†, J. Claire Cameron§, Richard Roberts¶, Meirion R. Evans#, Kathy Cann**, David N. Baxter††, Martin C.J. Maiden*, James M. Stuart‡‡Comments to Author , and on behalf of the United Kingdom Meningococcal Carriage Group
Author affiliations: *University of Oxford, Oxford, United Kingdom; †Health Protection Agency, London, United Kingdom; ‡University of Nottingham, Nottingham, United Kingdom; §Health Protection Services Scotland, Glasgow, United Kingdom; ¶Health Protection Team (North Wales), Mold, United Kingdom; #Cardiff University, Cardiff, United Kingdom; **Thames Valley Local Health Protection Unit, Aylesbury, United Kingdom; ††St Thomas' Hospital, Stockport, United Kingdom; ‡‡Health Protection Agency Southwest, Stonehouse, United Kingdom

Main Article

Table 3

Single variable analysis of risk factors for meningococcal carriage in British teenagers at school level*

Variable No. schools % positive† OR
(95% CI) p value
School type
Comprehensive 47 13.1 1.00, reference
Independent/grammar 9 12.0 0.90 (0.60–1.35)
Sixth form college 9 19.6 1.71 (1.18–2.48)
Further education college 9 19.1 1.66 (1.14–2.42) 0.002
Funding
State 68 14.6 1.00, reference
Independent 6 13.8 0.94 (0.57–1.56) 0.808
Sex 10.5
Single sex 5 14.8 1.00, reference
Coeducational 69 14.7 1.52 (0.87–2.64) 0.139
School size
Small (<200 pupils) 11 13.5 1.00, reference
Medium (200–499) 47 12.8 0.98 (0.68–1.41)
Large (>500) 16 20.2 1.78 (1.18–2.69) <0.001
Boarding
No 71 14.6 1.00, reference
Yes 3 13.1 0.79 (0.39–1.61) 0.512
Center
Cardiff 9 14.2 1.00, reference
Glasgow 22 11.7 0.75 (0.54–1.03)
Bangor 6 19.4 1.47 (0.99–2.20)
Nottingham 9 18.0 1.36 (0.94–1.95)
Oxford 11 20.8 1.63 (1.16–2.29)
Plymouth 14 7.9 0.52 (0.36–0.75)
Stockport 3 23.5 1.92 (1.22–3.03) <0.001

*OR, odds ratio; CI, confidence interval.
†This is calculated as the average of the percentages positive across the schools.

Main Article

1United Kingdom Meningococcal Carriage Group: S. Ahmed, D.A.A. Ala'aldeen, N. Andrews, R.A. Barnes, D.N. Baxter, J.C. Cameron, K. Cann, A.D. Carr, D. Casey, M. Clacher, S.C. Clarke, D.W. Crook, R. Cunningham, K.T. Dunkin, M.R. Evans, S. Gray, D. Griffiths, S. Harrison, E.B. Kaczmarski, G. Kafatos, J.S. Kroll, Y.K. Lau, G. Lewendon, C. Lewis, J.M. MacLennan, M.C.J. Maiden, P. Marks, R. Mathews, J. Murray, K. Neal, A. Paull, M.E. Ramsay, C. Roberts, J.M. Stuart, D. Turner, R. Urwin, A.M. Walker, S. Welch.

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