Annals of tropical medicine and parasitology . is factor cannot explain the discrepancy. Factor 5. Length of time betiveen arrival in England and treat-ments under discussion Table 5 : Length of time between date of arrival in England and the treatments. 0 !6 months 7 months upwards Treatment 1 Cases Cures 1 Cases Cures Series I .. 24 71% 17 65% Series II .. 64 5% Table VI shows : — (a) That in the first series of observations there is not muchdifference in the percentage of cures whether the cases have been inEngland under six months or over six months. {b) That of the cases which h
Annals of tropical medicine and parasitology . is factor cannot explain the discrepancy. Factor 5. Length of time betiveen arrival in England and treat-ments under discussion Table 5 : Length of time between date of arrival in England and the treatments. 0 !6 months 7 months upwards Treatment 1 Cases Cures 1 Cases Cures Series I .. 24 71% 17 65% Series II .. 64 5% Table VI shows : — (a) That in the first series of observations there is not muchdifference in the percentage of cures whether the cases have been inEngland under six months or over six months. {b) That of the cases which have been less than six months inEngland the percentage of cures obtained is much greater inSeries I than in Series II. Conclusion: This factor cannot explain the discrepancy. Factor 6. Time of year at w hie It treatment was administered Table 6 : Time of year at which treatment was administered. 1 Cures Treatment Date Cases Maximum Minimum 1 Series I July-Sept., 1•7 76 i 3 7 /o Series II , 18 89 6% 3% > u . p -ai2 S S 5 ?£ S c c 5 a aa , .c c c c c ci 3 5 2 c S c S 3 3 D 3 3 3 53S3333 oooooaa ooooooo a o a ozo 208 Table VII shows that whilst the first series of cases were treatedin July, August and September, 1917, the second series were treatedin January, February, March and April, 1918. Conclusion: This factor may possibly explain the discrepancy. We proceeded, therefore, to enquire whether the data in ourpossession supported this explanation. In Table VIII we havearranged all the cases treated by us during the last seventeen months,irrespective of the nature of the treatment to which they weresubmitted, according to the month in which the treatment each vertical column the number of relapses and of cures among thecases completing treatment in each month are given, and at the footof each column is the monthly percentage of cures obtained; inaddition the percentages of cures for each quarter of the year arerecorded. The data are also shown
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