title: Coverage for meningococcal disease in the Norwegian morbidity and mortality statistics. With reference to incidence and fatality trends.
abstract: The case coverage for meningococcal (MC) disease in the old notification system (ending 1974) in Norway was estimated at 52%. In contrast, an estimate for the new system (MSIS) is 76%. The latter is considered to verify the 72% found earlier. Adjustments for coverage resulted in a 160% increase in incidence from 1967-73 to 1974-79, whereas the unadjusted figure was 246%. A new estimate of MC death registration coverage is 78%, which verifies the 82% found earlier. Case fatality ratios in the two periods are 10.9% and 10.5% when adjusted, compared with 17.1% and 12.4% when unadjusted. Coverage estimates seem relatively stable, but if they were to be put under surveillance with the help of a sampling scheme, broader application and more appropriate confidence levels might be obtained for routine data.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008589:Meningococcal Infections / Q000453:epidemiology* / Q000401:mortality; D008875:Middle Aged; D009664:Norway; D012042:Registries