All cause mortality and morbidity by study group.

1per child-year (95% Confidence Interval);
2median (range);
3assuming that all children loss to follow-up survived;
4all severe anaemia episodes were admitted to hospital and transfused;
5incidence based on number of episodes of severe anaemia;
6assuming that all children lost to follow-up did not have a severe anaemia episode;
7presented to study clinic due to illness;
8any asexual parasites/µL blood;
9number of children with at least one re-admission to hospital

1. 每儿童年（child-year）（95%置信区间（Confidence Interval））；
2. 中位数（极差（range））；
3. 假设所有失访（lost to follow-up）儿童均存活；
4. 所有重度贫血发作（severe anaemia episodes）患儿均收入院并接受输血治疗；
5. 以重度贫血发作次数为基准计算的发病率；
6. 假设所有失访儿童均未发生重度贫血发作；
7. 因疾病前往研究诊所就诊；
8. 每微升血液中无性体寄生虫（asexual parasites）载量；
9. 至少发生1次医院再入院的儿童人数