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A database of blood group correlations to common diseases

Total number of records: 145 Matching records: 1

Otitis media (childhood ear infection)

Description:Risk factors for otitis media with effusion (OME) have proved difficult to apply in selecting persistent cases, or those otherwise requiring intervention. Explanations may include low predictive values of individual factors and the costs of data collection. In this study, profiles on 225 children from conception to age 7 years were compiled from medical and Health Authority records and structured interviews with parents. On the grounds that nearly all cases receiving medical intervention after waiting and onward referral are more than transitory (although many persistent cases will not receive such attention) this was taken as the dependent variable--a marker of persistence. Established risk factors and maternal blood group A were considered singly to predict intervention, then in combination using logistic regression. Maternal blood group A gave a relative risk (RR) for intervention of 2.82. The noted occurrence of an attack of acute otitis media (AOM) before the first birthday gave a RR of 6.13. When these two factors were used together, the RR climbed steeply to 26.77. These findings suggest that further research is justified into the nature of the influence of blood group A on OME, and the use of combinations of risk factors to give enhanced prediction. (2)

The ABO blood groups of 610 patients with documented secretory otitis media (SOM) and of 361 patients with cholesteatoma were compared with those of a control group. In cholesteatoma a normal distribution appeared while in SOM a preponderance of group A or shortage of group O was statistically significant and the incidence ratio was 1.49. In both disease entities a preponderance of males was found. The blood group abnormalities of SOM may indicate hereditary trends and they oppose the theories of SOM being the 'missing link' in the development of cholesteatoma. (1)
References:1. Clin Otolaryngol 1983 Aug;8(4):263-265 Distribution of ABO blood groups in secretory otitis media and cholesteatoma. Mortensen EH, Lildholdt T, Gammelgard NP, Christensen PH

2. Clin Otolaryngol 1994 Aug;19(4):327-331 Maternal blood group in otitis media with effusion. Gannon MM, Jagger C, Haggard MP

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2018-4-26: Current Date 4:9:51 GMT: Current Time

PathType is a searchable database of blood group and disease associations, clinical correlates and citations.
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