Yadav 1997.
Clinical features and settings |
Presenting signs and symptoms: Participants who attended at malaria clinic or who were selected from the villages based on clinical condition Previous treatment for malaria: No explicit exclusion criteria based on antimalarial use, and no relevant data presented for included participants Clinical setting: Malaria clinic and in the field Country: Gujarat, India Malaria endemicity: Not stated Malaria endemic species:P. falciparum and P. vivax |
|
Participants |
Sample size: 148 Age: All age groups eligible. Sample included 79 children and 69 adults. Sex: 73 males and 75 females included Co‐morbidities and pregnancy: No stated exclusion criteria based on co‐morbidities or pregnancy. No details of the frequency of these conditions in the participant population is presented. Parasite density of microscopy positive cases: Not presented |
|
Study design | Enrollment was prospective. The selection and sampling methods were not described. One RDT was evaluated. | |
Target condition and reference standard(s) |
Target condition: Malaria parasitaemia Reference standard: Microscopy Person(s) performing microscopy: Microscopists Microscopy setting: Not stated Number of high power fields examined before declaring negative: Not stated. The microscopist counted 300 WBCs before declaring a slide negative. A negative slide that tested positive by RDT was re‐examined, counting up to 2000 WBCs. Number of observer or repeats: A negative slide that tested positive by RDT was re‐examined, counting up to 2000 WBCs. A positive slide that tested negative by RDT was re‐examined and confirmed by another person by staining the duplicate film. Resolution of discrepancies between observers: Not described |
|
Index and comparator tests |
Commerical name of RDT: ICT test (AMARD/ ICT, Sydney, Australia) Parasite(s) designed to detect:P. falciparum Designated type: Type 1 Batch numbers: Not stated Trasport and storage conditions: Test kits were carried into the field under cold conditions in the containers that are commonly used for carrying vaccines. Person(s) performing RDT: Not states RDT setting: Malaria clinic and in the field in villages |
|
Follow‐up | Not applicable | |
Notes | Source of funding: Not stated | |
Table of Methodological Quality | ||
Item | Authors' judgement | Description |
Representative spectrum? All tests | Unclear | The selection criteria and sampling methods were not described; however all participants had either identified symptoms of malaria or were attending a malaria clinic |
Acceptable reference standard? All tests | No | Microscopists did not explicitly view 100 high power fields before declaring a slide negative. However, they had an alternative criteria of 300 WBCs. Re‐examination by a second microscopist was done for results discordant for RDT and microscopy. |
Partial verification avoided? All tests | Yes | All participants who received the index test also received the reference test |
Differential verification avoided? All tests | Yes | The same reference test was used regardless of the index test results |
Incorporation avoided? All tests | Yes | The index test does not form part of the reference standard |
Reference standard results blinded? All tests | Unclear | Blinding not described |
Index test results blinded? All tests | Yes | The ICT test was performed "blind" |
Uninterpretable results reported? All tests | Unclear | The number of participants originally included in the analysis was not explicitly stated; therefore it was not possible to assess whether any participants may have been excluded from the analysis due to uninterpretable test results |
Withdrawals explained? All tests | Unclear | The number of participants originally included in the analysis was not explicitly stated; therefore it was not possible to assess whether there were any withdrawals |