We tried to a statistical observation of the accident injuries and the surgical diseases (9718 cases, during 1945-1951) at Takata Coal Mine Hospital, and came to the following results.
1) As for the injuries, contusion is most freqnent, secondarily contused wound.
2) The accidents are most frequent in 1945, and more on October and September, probably due to the forced increase of production.
3) The injuried parts of body are most frequent in upper limbs, successively more under limbs, body, head. In order subdivision, are most in finger, next in foot. Generally in the right side are more frequent.
4) The accidents due to chiefly by coal-fall, next by coal-waggon.
5) The shaft-workers, especially coal-miners and excavators, are most frequently injuried.
6) Of the surgical diseases, suppuration and neuralgia are found most often.
The shaft-workers, especially coal-miner were suffered most frequently from those diseases.
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