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Evaluating interventions against Salmonella in broiler chickens: applying synthesis research in support of quantitative exposure assessment – CORRIGENDUM

Published online by Cambridge University Press:  06 September 2011

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Abstract

Type
Corrigendum
Copyright
Copyright © Cambridge University Press 2011

In the article by O. Bucher, A. Fazil, A. Rajic, A. Farrar, R. Willis and S. A. McEwen [Reference Bucher, Fazil, Rajić, Farrar, Wills and McEwen1] presented in Epidemiology and Infection, several values given in tables 1 and 2 were incorrect. Tables 1 and 2 are republished here with the correct values.

Table 1. Selected interventions (based on systematic review-meta-analysis) and their respective inputs for the quantitative exposure assessment model

a Intervention application point.

b For each intervention type up to three datasets were selected to represent intervention profile. The selection was based on a combination of arbitrary, biologic and contextual criteria.

c Studies (papers) confirmed relevant during the SR-MA process.

d Number of relevant studies (trials) for each intervention type or product that were included in random-effect MA.

e ChT–challenge trial, CT – controlled trial.

f Random allocation of intervention/concealment of treatment.

Randomized and/or non-randomized clinical or field trials and/or challenge trials.

g RD – Risk difference, MD – Mean difference.

h Statistical significance of heterogeneity (⩾25%) and publication bias (⩽0·1) as measured through Egger's regression asymmetry test.

i Calculated from MA.

j Selected for inclusion in the quantitative exposure assessment.

k Not applicable.

l PMBH – polyhexamethylenebiguanide hydrochloride.

m Calculated from individual studies.

Table 2. Description of the variables used to model Salmonella status in broiler chickens at the grow-out farm

a Beta (α, β).

b Pert (minimum, most likely, maximum).

c Uniform (minimum, maximum).

d Cumulative (minimum, maximum, range of values, cumulative probability of each value in range).

e Values chosen based on authors' discretion.

References

REFERENCE

1.Bucher, O., Fazil, A., Rajić, A., Farrar, A., Wills, R., McEwen, S. A.. Evaluating interventions against Salmonella in broiler chickens: applying synthesis research in support of quantitative exposure assessment. Epidemiology and Infection, Available on CJO 2011. doi:10.1017/S0950268811001373.Google Scholar
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Table 1. Selected interventions (based on systematic review-meta-analysis) and their respective inputs for the quantitative exposure assessment model

Figure 1

Table 2. Description of the variables used to model Salmonella status in broiler chickens at the grow-out farm