|
Ferritin (cut-off 100 mcg/L)
|
Sensitivity (%)
|
86 (67–95)
|
93 (69–100)
|
| |
Specificity (%)
|
57 (51–62)
|
56 (50–62)
|
| |
Positive predictive value (%)
|
14 (9–21)
|
10 (6–16)
|
| |
Negative predictive value (%)
|
98 (94–100)
|
99 (96–100)
|
| |
Positive likelihood ratio
|
2
|
2.1
|
| |
Negative likelihood ratio
|
0.24
|
0.13
|
| |
Sensitivity (%)
|
59 (39–77)
|
64 (39–84)
|
| |
Specificity (%)
|
76 (71–81)
|
75 (70–80)
|
|
Ferritin (cut-off 50 mcg/L)
|
Positive predictive value (%)
|
17 (10–27)
|
12(6–20)
|
| |
Negative predictive value (%)
|
96 (92–98)
|
98 (95–99)
|
| |
Positive likelihood ratio
|
2.5
|
2.6
|
| |
Negative likelihood ratio
|
0.54
|
0.47
|
| |
Sensitivity (%)
|
68 (47–84)
|
64 (39–84)
|
| |
Specificity (%)
|
51 (45–57)
|
50 (44–56)
|
|
Anaemia
|
Positive predictive value (%)
|
10 (6–16)
|
6 (3–11)
|
| |
Negative predictive value (%)
|
95 (90–98)
|
97 (92–99)
|
| |
Positive likelihood ratio
|
1.4
|
1.3
|
| |
Negative likelihood ratio
|
0.63
|
0.71
|
