Statistical Observations Between Takata Reaction and Zinc Sulfate Turbidity Test in Serum

Abstract

In this report the relationship between Takata reaction and Knnkel's zinc sulfate turbidity test (ZTT) in serum in 1686 normal and various sick individuals for the past one year has been described.
Both tests were performed simultaneously in the same serum.
The results were as follows.
1) It has been observed that the correlation between Takata reaction and ZTT was close and high.
2) The seasonable fluctuation in both tests was slightly observed. That is, in winter Takata reaction tended to be more positive, and ZTT unit tended to be lower in summer. The latter observation was opposite to the findings of Torii's report.
3) In normal individuals the ZTT unit was an average 8.3 ± 0.79 unit, normal range was from 4.5 to 12.5 unit throughout a year. These results were approximately the same as many reports.
4) 80.2 per cent out of all cases were negative in Takata reaction and 8.3 ± 0.79 unit in ZTT.
3.7 per cent out of all cases were plus-minus in Takata reaction and 14.4 ± 0.80 unit in ZTT.
5.6 per cent out of all cases were one plus in Takata reaction and 16.6 ± 0.79 unit in ZTT.
3.9 per cent out of all cases were two plus in Takata reaction and 18.2 ± 0.89 unit in ZTT.
3.6 per cent out of all cases were three plus in Takata reaction and 20.4 ± 0.87 unit in ZTT.
3.0 per cent out of all cases were four plus in Takata reaction and 88 per cent of these cases exceeded 21 unit in ZTT, especially those two-thirds over 25 unit.