Table 6.
Number of symptoms in subgroups and positive predictive value of anemia symptoms, weighted percentages.
| Number of Symptoms | All Participants (n = 5979) (%) |
Participants without Anemia (n = 5600) (%) |
Participants with Anemia (n = 379) (%) |
Positive Predictive Value % (95% CI) |
|---|---|---|---|---|
| Four Symptoms | 295 (4.9) | 271 (4.7) | 24 (6.6) | 8.4 (5.8–10.9) |
| Three Symptoms | 430 (7.2) | 387 (6.9) | 43 (10.5) | 8.9 (6.8–11.2) |
| Two Symptoms | 708 (11.5) | 658 (11.4) | 50 (13.1) | 6.9 (5.4–8.5) |
| One Symptom | 1511 (24.7) | 1412 (24.7) | 99 (24.6) | 6.1 (5.1–7.1) |
CI: confidence interval.