| Number of patients | Malaria number (%) | Sensitivity % (95% CI) | Specificity % (95% CI) | Positive LR (95% CI) | Negative LR (95% CI) |
---|---|---|---|---|---|---|
Symptoms | ||||||
 Fever | 253 | 40 (15.8) | 97.50 (86.84—99.94) | 7.04 (3.99—11.35) | 1.05 (0.99—1.12) | 0.36 (0.05—2.61) |
 Isolated fever a | 253 | 40 (15.8) | 2.50 (0.06—13.16) | 97.18 (93.97—98.96) | 0.89 (0.11—7.17) | 1 (0.95—1.06) |
 Headache | 253 | 40 (15.8) | 75.00 (58.80—87.31) | 44.13 (37.35—51.08) | 1.34 (1.08—1.66) | 0.57 (0.32—0.99) |
 Resporatory tract symptoms | 253 | 40 (15.8) | 12.50 (4.19—26.80) | 63.38 (56.52—69.86) | 0.34 (0.15—0.79) | 1.38 (1.18—1.61) |
 ENT symptoms | 253 | 40 (15.8) | 5.00 (0.61 -16.92) | 78.87 (72.77—84.15) | 0.24 (0.06—0.94) | 1.20 (1.09—1.33) |
 Abdominal pain | 253 | 40 (15.8) | 20.00 (9.05—35.65) | 76.53 (70.25—82.05) | 0.85 (0.44—1.66) | 1.05 (0.88—1.24) |
 Anorexia | 253 | 40 (15.8) | 37.50 (22.73—54.20) | 43.19 (36.44—50.14) | 0.66 (0.44—1.00) | 1.45 (1.09—1.92) |
 Diarrhea | 253 | 40 (15.8) | 17.50 (7.34—32.78) | 66.67 (59.90—72.96) | 0.52 (0.26—1.06) | 1.24 (1.04—1.47) |
 Dysuria/urinary frequency | 253 | 40 (15.8) | 7.50 (1.57—20.39) | 92.96 (88.65—96.01) | 1.06 (0.32—3.51) | 1.00 (0.90—1.09) |
 Myalgia | 253 | 40 (15.8) | 55.00 (38.49—70.74) | 59.15 (52.23—65.82) | 1.35 (0.97—1.86) | 0.76 (0.53—1.09) |
 Arthralgia | 253 | 40 (15.8) | 25.00 (12.69—41.20) | 79.34 (73.28 -84.57) | 1.21 (0.67—2.20) | 0.95 (0.78—1.14) |
Laboratory findings | ||||||
 Anaemiab | 253 | 40 (15.8) | 17.50 (7.34—32.78) | 84.51 (78.94—89.09) | 1.13 (0.54—2.37) | 0.98 (0.84—1.14) |
 Hyperbilirubinemia c | 246 | 40 (16.3) | 35.00 (20.63—51.68) | 91.26 (86.54—94.74) | 4.01 (2.17—7.38) | 0.71 (0.57—0.90) |
 Thrombocytopenia d | 250 | 40 (16.0) | 77.50 (61.55—89.16) | 87.14 (81.85—91.35) | 6.03 (4.08—8.90) | 0.26 (0.14—0.46) |
 Splenomegaly on ultrasound | 138 | 19 (13.8) | 26.32 (9.15—51.20) | 90.76 (84.06—95.29) | 2.85 (1.11—7.29) | 0.81 (0.62—1.07) |