Table 1.
Detection of Blastocystis sp. positive cases among CRC patients and healthy controls (N = 200) using different diagnostic techniques
| Culture | Total | Accuracy measures | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Positive N = 94 |
Negative N = (106) |
Variable | % | OR | 95% CI | P value | |||
| Direct microscopy | Positive |
58 (61.7) |
0 (0.00) |
58 (29.0) |
-Sens -Spec -PPV -NPV -Acc - LR + - LR- |
61.7 100 100 74.65 82 61.7 38.29 |
1.61 | 47.3 – 66.7 | < 0.001* |
| Negative |
36 (38.3) |
106 (100.0) |
142 (71.0) |
||||||
| Modified trichrome stain | Positive |
68 (72.3) |
0 (0.00) |
68 (34.0) |
-Sens -Spec -PPV -NPV -Acc - LR + - LR- |
72.34 100 100 80.30 87 72.3427.66 |
2.62 | 32.3 – 75.7 | < 0.001* |
| Negative |
26 (27.7) |
106 (100.0) |
132 (66.0) |
||||||
| Total |
94 (47%) |
106 (53%) | 200 (100%) | ||||||
(Sens.): Sensitivity, (Spec.): Specificity, (PPV): Positive predictive value, (NPV): Negative predictive value; (Acc.): Accuracy, (LR +): Positive likelihood ratio, (LR-): Negative likelihood ratio, (OR): Diagnostic odds ratio; (CI): Confidence Interval. *P values ≤ 0.05 were considered statistically significant