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Median and interquartile range of hemoglobin levels stratified by iPTH quintiles. Raw data for PTH quintiles: 1, ≤108 pg/ml; 2, >108–≤246 pg/ml; 3, >246 – ≤431 pg/ml; 4, <431 – ≤808 pg/ml; 5, >808 pg/ml.
Conversion factor for serum hemoglobin in g/dl to g/L, ×10; no conversion necessary for intact PTH in pg/ml and ng/ml.
