Characteristics of the 4 participating studies
| . | BLSA (n = 713) . | InCHIANTI (n = 1206) . | WHASI (n = 375) . | WHASII (n = 194) . |
|---|---|---|---|---|
| Age, y* | 65.5 (14.8) | 68.3 (15.5) | 78.3 (8.0) | 74 (2.7) |
| Male† | 54.0 (389) | 44.4 (536) | — | — |
| Iron, μg/dL* | 82.9 (32.3) | 83.3 (26) | 77.6 (26.2) | 84.9 (29.5) |
| Red blood cells, 106/μL* | 4.6 (0.6) | 4.5 (0.4) | 4.3 (0.5) | 4.4 (0.3) |
| Hemoglobin, g/dL* | 13.9 (1.7) | 13.8 (1.4) | 13.2 (1.3) | 13.5 (1.1) |
| Mean corpuscular volume, fL* | 92.3 (4.5) | 90.3 (4.8) | 94.4 (6.0) | 92.6 (5.1) |
| Hematocrit, percentage* | 42.3 (5.2) | 40.7 (3.5) | 40.3 (4.1) | 40.3 (3.2) |
| Ferritin, ng/mL* | 94.7 (111.9) | 140.7 (144.6) | 118.7 (191.7) | 108.0 (98.8) |
| Platelets, 1000/μL* | 244.7 (157.4) | 227.6 (67.1) | 267.6 (84.4) | 240.8 (56.2) |
| Red blood cell width, percentage* | 13.3 (0.9) | 13.7 (1.0) | 14.3 (1.6) | 13.8 (1.2) |
| . | BLSA (n = 713) . | InCHIANTI (n = 1206) . | WHASI (n = 375) . | WHASII (n = 194) . |
|---|---|---|---|---|
| Age, y* | 65.5 (14.8) | 68.3 (15.5) | 78.3 (8.0) | 74 (2.7) |
| Male† | 54.0 (389) | 44.4 (536) | — | — |
| Iron, μg/dL* | 82.9 (32.3) | 83.3 (26) | 77.6 (26.2) | 84.9 (29.5) |
| Red blood cells, 106/μL* | 4.6 (0.6) | 4.5 (0.4) | 4.3 (0.5) | 4.4 (0.3) |
| Hemoglobin, g/dL* | 13.9 (1.7) | 13.8 (1.4) | 13.2 (1.3) | 13.5 (1.1) |
| Mean corpuscular volume, fL* | 92.3 (4.5) | 90.3 (4.8) | 94.4 (6.0) | 92.6 (5.1) |
| Hematocrit, percentage* | 42.3 (5.2) | 40.7 (3.5) | 40.3 (4.1) | 40.3 (3.2) |
| Ferritin, ng/mL* | 94.7 (111.9) | 140.7 (144.6) | 118.7 (191.7) | 108.0 (98.8) |
| Platelets, 1000/μL* | 244.7 (157.4) | 227.6 (67.1) | 267.6 (84.4) | 240.8 (56.2) |
| Red blood cell width, percentage* | 13.3 (0.9) | 13.7 (1.0) | 14.3 (1.6) | 13.8 (1.2) |