Table 1.
Biomarkers of iron, other micronutrients and CRP among non-anaemic, non-iron-deficient infants (aged 6–12 months) and pre-schoolers (aged 29–56 months) with CRP<5 mg/l for defining cut-off of sTfR, Nalgonda district, Telangana, India
| Infants | Pre-schoolers | |||||
|---|---|---|---|---|---|---|
| Biomarker | n | Mean | 95 % CI | n | Mean | 95 % CI |
| Hb (g/l) | 108 | 118 | 117, 120 | 103 | 121 | 120, 122 |
| Ferritin (µg/l) | 108 | 29·4 | 25·7, 33·1 | 103 | 26·0 | 21·9, 30·2 |
| sTfR (mg/l) | 108 | 2·54 | 2·43, 2·65 | 98 | 2·47 | 2·34, 2·60 |
| sTfR/log ferritin (mg/µg) | 108 | 1·86 | 1·76, 1·96 | 98 | 1·89 | 1·76, 2·01 |
| Zn (µmol/l) | 104 | 18·6 | 17·5, 19·7 | 101 | 13·8 | 13·1, 14·6 |
| Folate (nmol/l) | 105 | 28·3 | 25·8, 30·6 | 103 | 13·1 | 12·2, 14·0 |
| Vitamin B12 (pmol/l) | 105 | 307 | 277, 337 | 103 | 304 | 281, 336 |
| CRP (mg/l) | 108 | 0·87 | 0·66, 1·07 | 100 | 0·96 | 0·74, 1·17 |
CRP, C-reactive protein; sTfR, soluble transferrin receptor.