ESR, albumin, WCC and AEC each contributed 7 -11%; HIV status and differences in HB and ALC had little value.Other classifiers performed less well than random forests. Conclusion:Ferritin and LDH may be used to substitute for PET-CT if unavailable in resource-constrained settings.Caution is necessary… and the decision whether to administer consolidation radiotherapy in SER disease A combined statistical algorithm combining the most reliable results may offer more robust modelling of which patients may safely forego PET-CT scanning.