The statistic observation about 474 cases of fractures, which were treated for the last four years in a coal mine are as follow;
1. The occupational injuries are on the decrease year by year, but the cases of fractures are on the increase.
2. Fractures occured mostly in December and May; the cases of fractures were more numerous on the beginning of week, but few on the weekend.
3. Fractures occured most frequent during the midday, next at the beginning and the end of work.
4. Fractures occured mostly in the twenties, then in the thirties and fourties. But it happened still in the fourties, in spite of their services of long years in the mine.
5. Fractures occured 80% in a mine. The cases of the worker, who had remained at a workshop for a while, were numerous, but anyone else few.
6. Fractures arised mostly from fallen masses of earth, then waggons and falls of workmaterials.
7. The lower limbs were most frequent and next is upper limbs, as it approached towards the limbs end, the more fractures occured frequent.
8. The term of the recuperation of fractures of coal miner was longer than the other occupations.
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