Analysis of secular trends in surgery for glue ear in the North Western Region (1975-1984).

Hospital Activity Analysis (HAA) data relating to operations for glue ear and tonsillectomy performed on residents of the North Western Region, aged 0-9 years during the period 1975-1984 were studied. The rate of surgery for glue ear has risen from 45/10,000 to 107/10,000 representing an increase of 137 per cent. The tonsillectomy rate by comparison has undergone a more modest increase of 19 per cent. The study casts doubt on a 'vacuum effect', as has been argued by Black. Marked variation in rates of surgery between Districts in the Region were noted, and the possible explanations discussed. A review of the literature revealed considerable controversy concerning the management of glue ear and the need for a definitive trial is highlighted.