Cluster-sample surveys and lot quality assurance sampling to evaluate yellow fever immunisation coverage following a national campaign, Bolivia, 2007

2009 ◽  
Vol 14 (3) ◽  
pp. 355-361 ◽  
Author(s):  
Lorenzo Pezzoli ◽  
Silvia Pineda ◽  
Percy Halkyer ◽  
Gladys Crespo ◽  
Nick Andrews ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Yellow Fever ◽  
Sample Surveys ◽  
Immunisation Coverage ◽  
Cluster Sample ◽  
Lot Quality Assurance Sampling

scholarly journals Clustered lot quality assurance sampling: a tool to monitor immunization coverage rapidly during a national yellow fever and polio vaccination campaign in Cameroon, May 2009

2011 ◽  
Vol 140 (1) ◽  
pp. 14-26 ◽  
Author(s):  
L. PEZZOLI ◽  
R. TCHIO ◽  
A. D. DZOSSA ◽  
S. NDJOMO ◽  
A. TAKEU ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Yellow Fever ◽  
Vaccination Campaign ◽  
Immunization Coverage ◽  
Vaccination Strategy ◽  
Oral Polio Vaccine ◽  
Polio Vaccine ◽  
Polio Vaccination ◽  
Lot Quality Assurance Sampling ◽  
Low Coverage

SUMMARYWe used the clustered lot quality assurance sampling (clustered-LQAS) technique to identify districts with low immunization coverage and guide mop-up actions during the last 4 days of a combined oral polio vaccine (OPV) and yellow fever (YF) vaccination campaign conducted in Cameroon in May 2009. We monitored 17 pre-selected districts at risk for low coverage. We designed LQAS plans to reject districts with YF vaccination coverage <90% and with OPV coverage <95%. In each lot the sample size was 50 (five clusters of 10) with decision values of 3 for assessing OPV and 7 for YF coverage. We ‘rejected’ 10 districts for low YF coverage and 14 for low OPV coverage. Hence we recommended a 2-day extension of the campaign. Clustered-LQAS proved to be useful in guiding the campaign vaccination strategy before the completion of the operations.

scholarly journals Prevalence Study of Yaws in the Democratic Republic of Congo Using the Lot Quality Assurance Sampling Method

PLoS ONE ◽  
2009 ◽  
Vol 4 (7) ◽  
pp. e6338 ◽  
Author(s):  
Sibylle Gerstl ◽  
Gédeon Kiwila ◽  
Mehul Dhorda ◽  
Sylvaine Lonlas ◽  
Mark Myatt ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Sampling Method ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Prevalence Study ◽  
Republic Of Congo ◽  
Lot Quality Assurance Sampling

scholarly journals Carencias y variabilidad en la calidad de la atención a neonatos hospitalizados en México. Estudio transversal en 28 hospitales públicos

2021 ◽  
Vol 63 (2, Mar-Abr) ◽  
pp. 180-189
Author(s):  
Pedro Jesús Saturno-Hernández ◽  
Ofelia Poblano-Verástegui ◽  
Sergio Flores-Hernández ◽  
Ismael Martínez-Nicolas ◽  
Waldo Vieyra-Romero ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Lot Quality Assurance Sampling

     Objetivo. Evaluar la calidad de la atención a neonatos con indicadores de proceso, en patologías seleccionadas. Ma­terial y métodos. Evaluación multicéntrica, transversal de nueve indicadores en 28 hospitales de 11 entidades de México. Se utilizó Lot Quality Assurance Sampling (LQAS) para estándares de calidad y muestra por hospital. Casos seleccio­nados al azar del Subsistema Automatizado de Egresos Hos­pitalarios. Se clasifican hospitales como “cumplimiento con estándar”/“no cumplimiento” por indicador y, cumplimiento con IC95% exacto binomial, regional y nacional, según mues­treo estratificado no proporcional. Resultados. Ningún indicador cumple el estándar de 75% en hospitales, con 0 a 19 hospitales que cumplen, según indicador. Excepto la iden­tificación oportuna de asfixia perinatal e inicio de antibiótico correcto en sospecha de sepsis temprana, el cumplimiento es <50% en todos los demás indicadores. Conclusiones. La calidad de la atención a neonatos en hospitales es heterogé­nea y deficiente. Se proponen indicadores para monitorizar iniciativas de mejora.

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