Endpoint
Positive predictive value
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
CAT:outcome/positive-predictive-valuereported in percent
How it is measured
Proportion of test-positive individuals in whom the target condition is confirmed on the reference standard, expressed as a percentage. Population, underlying disease prevalence, index test, threshold, and reference standard recorded with each finding and not optional.
Measured, not recorded
- Subject
- positive predictive value
- Measurements
- 10 measurements
- Recorded as a finding
- No
Show what was measured
Positive predictive value
4 ng | 78.6 (65.6–88.4) | 84.6 (65.1–95.6) | 91.7 (80.0–97.7) | 64.7 (46.5–80.3) | 80.5 (70.3–88.4)
PMID:37854002 · one of two readings recorded this
Positive predictive value
5 ng | 82.1 (69.6–91.1) | 80.8 (60.7–93.5) | 90.2 (78.6–96.7) | 67.7 (48.6–83.3) | 81.7 (71.6–89.4)
PMID:37854002 · one of two readings recorded this
Positive predictive value
6 ng | 89.5 (78.5–96.0) | 81.5 (61.9–93.7) | 91.1 (82.1–95.8) | 78.6 (62.8–88.9) | 86.9 (77.8–93.3)
PMID:37854002 · one of two readings recorded this
Positive predictive value
4 ng | 69.0 (55.5–80.5) | 82.1 (63.1–93.9) | 88.9 (76.0–96.3) | 56.1 (39.8–71.5) | 73.3 (62.2–82.2)
PMID:37854002 · one of two readings recorded this
Positive predictive value
5 ng | 75.9 (62.8–86.1) | 78.6 (59.1–91.7) | 88.0 (75.7–95.5) | 61.1 (43.5–76.9) | 76.7 (66.4–85.2)
PMID:37854002 · one of two readings recorded this
Positive predictive value
6 ng | 79.3 (66.7–88.8) | 71.4 (51.3–86.8) | 85.2 (72.9–93.4) | 62.5 (43.7–78.9) | 76.7 (66.4–85.2)
PMID:37854002 · one of two readings recorded this
Positive predictive value
n = 84
Stool (n = 84) | 54.9 (43.5–65.9) | 64.2 (49.8–76.9) | 88.5 (69.9–97.6) | 91.9 (78.1–98.3) | 54.8 (38.7–70.2) | 72.2 (60.9–81.7)
PMID:37854002 · one of two readings recorded this
Positive predictive value
n = 87
FIT (n = 87) | 55.8 (44.7–66.5) | 62.1 (48.4–74.5) | 92.9 (76.5–99.1) | 94.7 (82.3–99.4) | 54.2 (39.2–68.6) | 72.1 (61.4–81.2)
PMID:37854002 · one of two readings recorded this
Positive predictive value
n = 52
rt‐PCR (eradication) (n = 52) | 50.0 | 96.2 (78.5–99.4) | 92.3 (75.9–97.9 | 92.6 (75.7–99.1) | 96.0 (79.7–99.9) | 94.2 (84.1–98.8)
PMID:37854002 · one of two readings recorded this
Positive predictive value
n = 97
rt‐PCR (n = 97) | 52.3 | 87.9 (77.3–93.9) | 85.3 (74.2–92.1) | 86.3 (73.7–94.3) | 87.0 (73.7–95.1) | 86.6 (78.2–92.7)
PMID:37854002 · one of two readings recorded this