| Conventional mass radiography surveys ceased in 1964, and the service is now concerned chiefly with general practitioner referrals, but also carries out special group surveys, such as factory contacts and positive tuberculin reactors in school children. Two units were employed until November, 1969, when one unit was discontinued as an economy measure. The modified programme has been designed to cause minimum disturbance to the general practitioner service which yields the greatest number of significant abnormalities. In fact, although some of the smaller centres are no longer visited the number of general practitioner referrals has increased slightly, whilst group surveys have been cut back from 14,530 in 1969 to 7,623. The yield of serious disease, especially tuberculosis, in these special surveys is so meagre, however, that it is unlikely that any significant number of such cases has been missed. |
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