農村民の医学的研究 第2報；岡山県西南部2～3の農村に於ける甲状腺腫の腫大度と頻度に就いて [in Japanese] MEDICAL STUDIES ON THE RURAL PEOPLE (II) A STUDY ON THE INCIDENCE OF STRUMA IN THE SOUTH-WESTERN RURAL DISTRICTS OF OKAYAMA PREFECTURE, JAPAN [in Japanese]
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The author investigated the thyroid glands of 1480 school children (aged from 6 to 14) living in the vicinity of Yakage, the south-western rural district of Okayama Prefecture, and 1516 out-patients of Yakage Hospital, in 1950. The incidence of struma among the school children was 4.6 per cent and among the out-patients 4.7% on an average, and the percentage of struma in the spring (7.8%) was higher than in the summer (2.98%). This result suggests that thyroidglands are in some way susceptible to seasonal influences, and it is therefore necessary to consider the effect of season during investigation. The white blood pictures of seven patients showed no specific findings.
岡山大学温泉研究所報告 (14), 51-56, 1954-03