title: Performance of the lot quality assurance sampling method compared to surveillance for identifying inadequately-performing areas in Matlab, Bangladesh.
abstract: This paper compared the performance of the lot quality assurance sampling (LQAS) method in identifying inadequately-performing health work-areas with that of using health and demographic surveillance system (HDSS) data and examined the feasibility of applying the method by field-level programme supervisors. The study was carried out in Matlab, the field site of ICDDR,B, where a HDSS has been in place for over 30 years. The LQAS method was applied in 57 work-areas of community health workers in ICDDR,B-served areas in Matlab during July-September 2002. The performance of the LQAS method in identifying work-areas with adequate and inadequate coverage of various health services was compared with those of the HDSS. The health service-coverage indicators included coverage of DPT, measles, BCG vaccination, and contraceptive use. It was observed that the difference in the proportion of work-areas identified to be inadequately performing using the LQAS method with less than 30 respondents, and the HDSS was not statistically significant. The consistency between the LQAS method and the HDSS in identifying work-areas was greater for adequately-performing areas than inadequately-performing areas. It was also observed that the field managers could be trained to apply the LQAS method in monitoring their performance in reaching the target population.
authors.affiliation: Social and Behavioural Sciences Unit, ICDDR,B GPO Box 128, Dhaka 1000, Bangladesh. abbas@icddrb.org
authors.forename: Abbas
authors.initials: A
authors.lastname: Bhuiya
authors.forename: S M A
authors.initials: SM
authors.lastname: Hanifi
authors.forename: Nikhil
authors.initials: N
authors.lastname: Roy
authors.forename: P Kim
authors.initials: PK
authors.lastname: Streatfield
mesh_terms: D001459:Bangladesh; D003153:Community Health Services / Q000592:standards*; D003430:Cross-Sectional Studies; D003906:Developing Countries; D006801:Humans; D011159:Population Surveillance; D015397:Program Evaluation; D011785:Quality Assurance, Health Care; D012494:Sampling Studies; D018571:Sentinel Surveillance