biostudies-literatureUnknown11 Suppl 2Andersson N<h4>Background</h4>Focus groups, rapid assessment procedures, key informant interviews and institutional reviews of local health services provide valuable insights on health service resources and performance. A long-standing challenge of health planning is to combine this sort of qualitative evidence in a unified analysis with quantitative evidence from household surveys. A particular challenge in this regard is to take account of the neighbourhood or clustering effects, recognising that these can be informative or incidental.<h4>Methods</h4>An example of food aid and food sufficiency from the Bosnian emergency (1995-96) illustrates two Lamothe cluster-adjustments of the Mantel Haenszel (MH) procedure, one assuming a fixed odds ratio and the other allowing for informative clustering by notBMC health services researchS15https://www.ebi.ac.uk/biostudies/studies/S-EPMC3332559biostudies-literatureClustering and meso-level variables in cross-sectional surveys: an example of food aid during the Bosnian crisis.PMC3332559Lamothe GAndersson NfalseClustering and meso-level variables in cross-sectional surveys: an example of food aid during the Bosnian crisis.<h4>Background</h4>Focus groups, rapid assessment procedures, key informant interviews and institutional reviews of local health services provide valuable insights on health service resources and performance. A long-standing challenge of health planning is to combine this sort of qualitative evidence in a unified analysis with quantitative evidence from household surveys. A particular challenge in this regard is to take account of the neighbourhood or clustering effects, recognising that these can be informative or incidental.<h4>Methods</h4>An example of food aid and food sufficiency from the Bosnian emergency (1995-96) illustrates two Lamothe cluster-adjustments of the Mantel Haenszel (MH) procedure, one assuming a fixed odds ratio and the other allowing for informative clustering by not2011-01-01T00:00:00Z2011 Dec2025-04-04T21:05:55.491Z2019-03-27T00:52:33ZS-EPMC33325592237635310.1186/1472-6963-11-S2-S15