Serum ferritin (3 month average), continuous (ng/mL) |
N Ptnts | Mean | Std Err | Pctl: 5th | 10th | 25th | 50th | 75th | 90th | 95th | ||
---|---|---|---|---|---|---|---|---|---|---|---|
National sample | Month | ||||||||||
Overall | AUG10 | 3,308 | 665.08 | 13.12 | 124.25 | 182.49 | 372.30 | 597.29 | 890.66 | 1189.48 | 1410.88 |
SEP10 | 3,231 | 651.39 | 22.69 | 124.77 | 187.23 | 369.58 | 602.09 | 871.95 | 1144.40 | 1377.89 | |
OCT10 | 3,359 | 653.51 | 19.98 | 122.73 | 192.20 | 370.29 | 611.30 | 870.58 | 1150.31 | 1346.24 | |
NOV10 | 3,487 | 660.44 | 19.12 | 119.59 | 203.18 | 371.42 | 610.47 | 878.84 | 1138.21 | 1348.41 | |
DEC10 | 3,596 | 678.74 | 21.89 | 133.85 | 205.57 | 395.82 | 627.88 | 896.76 | 1187.64 | 1407.38 | |
JAN11 | 3,522 | 695.85 | 23.84 | 127.61 | 229.42 | 395.52 | 644.47 | 921.79 | 1221.59 | 1432.11 | |
FEB11 | 3,579 | 688.58 | 22.64 | 117.69 | 203.96 | 388.51 | 645.29 | 914.77 | 1215.54 | 1431.60 | |
MAR11 | 3,586 | 668.07 | 20.87 | 120.26 | 198.52 | 359.58 | 625.54 | 894.86 | 1159.73 | 1394.85 | |
APR11 | 3,702 | 696.57 | 25.16 | 125.39 | 197.79 | 386.68 | 639.88 | 946.17 | 1239.30 | 1445.75 | |
MAY11 | 3,665 | 697.03 | 24.00 | 132.52 | 213.79 | 384.92 | 635.71 | 945.82 | 1231.59 | 1457.59 | |
JUN11 | 3,658 | 703.80 | 31.47 | 99.97 | 173.90 | 368.70 | 634.71 | 950.88 | 1303.77 | 1558.08 | |
JUL11 | 3,902 | 731.68 | 26.76 | 132.18 | 207.89 | 384.47 | 667.31 | 968.15 | 1331.79 | 1568.97 | |
AUG11 | 3,798 | 744.38 | 24.08 | 163.87 | 235.82 | 418.42 | 684.64 | 994.54 | 1315.73 | 1561.45 | |
SEP11 | 3,763 | 759.65 | 23.53 | 162.19 | 246.11 | 436.84 | 700.65 | 1009.50 | 1335.82 | 1577.78 | |
OCT11 | 3,733 | 822.23 | 29.24 | 165.09 | 241.96 | 470.59 | 762.76 | 1084.14 | 1453.18 | 1665.32 | |
NOV11 | 3,746 | 824.33 | 23.87 | 158.63 | 256.05 | 480.76 | 765.69 | 1073.40 | 1442.61 | 1641.47 | |
DEC11 | 3,504 | 824.12 | 27.17 | 186.95 | 257.93 | 480.62 | 773.89 | 1063.17 | 1421.22 | 1627.71 | |
JAN12 | 3,169 | 830.99 | 29.16 | 181.95 | 281.57 | 496.55 | 781.25 | 1074.21 | 1402.49 | 1665.99 | |
FEB12 | 3,131 | 835.77 | 28.77 | 188.13 | 288.19 | 498.80 | 790.09 | 1066.57 | 1436.61 | 1721.53 | |
MAR12 | 5,412 | 772.66 | 25.95 | 147.12 | 241.01 | 478.44 | 717.76 | 989.66 | 1336.04 | 1530.49 | |
APR12 | 6,835 | 786.53 | 23.54 | 165.88 | 251.64 | 484.70 | 746.89 | 1026.89 | 1339.54 | 1546.52 | |
MAY12 | 8,813 | 779.15 | 25.74 | 153.49 | 243.05 | 480.87 | 733.94 | 1020.96 | 1325.24 | 1544.64 | |
JUN12 | 9,512 | 781.71 | 21.53 | 146.79 | 251.92 | 486.81 | 754.83 | 1038.90 | 1299.66 | 1481.97 | |
JUL12 | 10,185 | 784.01 | 20.79 | 153.71 | 248.75 | 485.68 | 761.93 | 1033.94 | 1277.88 | 1467.08 | |
AUG12 | 10,404 | 771.26 | 19.63 | 143.54 | 219.90 | 461.56 | 756.72 | 1028.81 | 1266.72 | 1458.79 | |
SEP12 | 10,658 | 790.17 | 16.50 | 169.70 | 246.72 | 485.69 | 778.69 | 1038.93 | 1298.79 | 1495.94 | |
OCT12 | 10,607 | 797.67 | 16.67 | 152.77 | 261.76 | 481.99 | 789.37 | 1062.95 | 1310.41 | 1504.69 | |
NOV12 | 10,845 | 808.56 | 17.73 | 178.68 | 265.93 | 494.69 | 798.70 | 1069.83 | 1314.72 | 1507.75 | |
DEC12 | 10,891 | 805.05 | 20.12 | 163.50 | 256.71 | 493.76 | 779.70 | 1060.66 | 1335.99 | 1557.71 | |
JAN13 | 10,892 | 796.53 | 18.58 | 166.50 | 269.19 | 494.99 | 776.89 | 1041.96 | 1297.69 | 1529.85 | |
FEB13 | 11,057 | 789.60 | 18.58 | 156.71 | 258.82 | 482.90 | 773.67 | 1026.76 | 1272.46 | 1498.29 | |
MAR13 | 11,226 | 785.40 | 19.51 | 150.85 | 257.59 | 490.98 | 769.55 | 1036.58 | 1287.95 | 1494.30 | |
APR13 | 11,069 | 777.13 | 20.15 | 137.58 | 248.89 | 474.45 | 759.78 | 1036.74 | 1284.59 | 1477.79 | |
MAY13 | 11,006 | 776.19 | 22.02 | 132.87 | 240.55 | 466.74 | 755.91 | 1027.39 | 1303.91 | 1497.31 | |
JUN13 | 11,004 | 763.14 | 21.10 | 127.90 | 218.51 | 456.76 | 738.68 | 1009.86 | 1291.97 | 1480.98 | |
JUL13 | 11,050 | 771.64 | 20.73 | 130.89 | 226.94 | 457.82 | 750.91 | 1018.53 | 1300.67 | 1504.77 | |
AUG13 | 11,036 | 759.44 | 20.22 | 131.00 | 228.91 | 432.86 | 742.60 | 1002.97 | 1304.97 | 1489.46 | |
SEP13 | 10,889 | 762.48 | 20.36 | 139.70 | 224.79 | 422.97 | 733.59 | 1015.43 | 1350.21 | 1503.95 | |
OCT13 | 10,871 | 771.59 | 21.25 | 153.79 | 224.79 | 429.65 | 727.58 | 1016.00 | 1359.69 | 1540.15 | |
NOV13 | 10,864 | 781.27 | 23.51 | 156.72 | 241.96 | 453.45 | 726.00 | 1032.79 | 1364.41 | 1548.02 | |
DEC13 | 10,766 | 779.86 | 25.45 | 179.73 | 255.78 | 449.88 | 718.63 | 1024.61 | 1361.66 | 1568.02 | |
JAN14 | 10,714 | 796.74 | 25.62 | 176.74 | 256.85 | 466.10 | 746.99 | 1047.60 | 1364.64 | 1569.45 | |
FEB14 | 10,704 | 797.49 | 26.26 | 178.21 | 264.79 | 466.94 | 756.80 | 1054.43 | 1369.93 | 1604.04 | |
MAR14 | 10,589 | 789.84 | 26.54 | 143.72 | 249.88 | 464.97 | 747.94 | 1047.65 | 1362.64 | 1564.56 | |
APR14 | 10,333 | 766.57 | 26.30 | 157.61 | 255.38 | 442.83 | 727.99 | 1005.87 | 1321.82 | 1524.07 | |
MAY14 | 10,427 | 741.23 | 24.10 | 148.30 | 238.12 | 423.98 | 702.87 | 986.97 | 1276.15 | 1471.51 | |
JUN14 | 10,570 | 745.68 | 22.96 | 156.69 | 230.73 | 433.84 | 714.42 | 986.68 | 1267.84 | 1483.21 | |
JUL14 | 10,706 | 765.67 | 24.88 | 159.34 | 233.32 | 453.68 | 736.16 | 1006.88 | 1316.99 | 1519.84 | |
AUG14 | 10,694 | 770.91 | 26.16 | 152.14 | 238.77 | 460.57 | 735.59 | 1012.96 | 1324.54 | 1546.45 | |
SEP14 | 10,660 | 792.62 | 25.49 | 152.87 | 238.73 | 466.74 | 751.19 | 1038.15 | 1371.11 | 1553.99 | |
OCT14 | 10,807 | 795.81 | 24.39 | 162.62 | 246.82 | 477.29 | 760.78 | 1040.67 | 1355.20 | 1552.76 | |
NOV14 | 10,765 | 801.06 | 25.89 | 155.57 | 248.42 | 475.67 | 763.93 | 1068.56 | 1382.58 | 1549.35 | |
DEC14 | 10,595 | 807.43 | 26.97 | 164.10 | 263.00 | 483.72 | 763.06 | 1070.82 | 1365.83 | 1553.66 | |
JAN15 | 10,611 | 826.51 | 28.93 | 183.34 | 271.48 | 488.67 | 775.98 | 1076.39 | 1392.89 | 1621.62 | |
FEB15 | 10,712 | 840.23 | 28.74 | 170.72 | 266.63 | 499.93 | 786.95 | 1091.75 | 1417.17 | 1641.14 | |
MAR15 | 9,342 | 827.14 | 28.35 | 175.88 | 260.69 | 469.57 | 786.88 | 1097.25 | 1411.44 | 1610.50 | |
APR15 | 9,329 | 801.15 | 23.70 | 181.98 | 262.95 | 471.56 | 760.93 | 1061.91 | 1369.92 | 1545.50 | |
MAY15 | 10,145 | 799.76 | 22.08 | 176.86 | 264.48 | 467.99 | 773.94 | 1070.30 | 1353.99 | 1524.78 | |
JUN15 | 10,666 | 799.10 | 21.56 | 169.96 | 267.10 | 465.96 | 771.72 | 1062.81 | 1353.09 | 1535.43 | |
JUL15 | 11,069 | 793.18 | 23.24 | 166.77 | 261.90 | 465.95 | 762.35 | 1046.91 | 1350.67 | 1527.47 | |
AUG15 | 10,964 | 803.65 | 22.78 | 172.96 | 271.91 | 467.79 | 772.00 | 1065.05 | 1373.94 | 1547.88 | |
SEP15 | 10,953 | 807.36 | 22.93 | 168.99 | 265.69 | 473.60 | 775.48 | 1077.52 | 1381.69 | 1551.87 | |
OCT15 | 11,126 | 810.92 | 21.79 | 185.95 | 278.80 | 488.97 | 772.52 | 1067.17 | 1362.98 | 1534.95 | |
NOV15 | 11,269 | 810.54 | 21.05 | 199.05 | 283.78 | 497.68 | 778.89 | 1062.88 | 1345.81 | 1514.13 | |
DEC15 | 11,164 | 810.26 | 21.87 | 192.04 | 296.46 | 508.89 | 778.61 | 1046.97 | 1344.06 | 1524.50 | |
JAN16 | 11,197 | 810.51 | 23.61 | 179.87 | 294.86 | 494.61 | 776.00 | 1050.17 | 1348.39 | 1543.12 | |
FEB16 | 11,338 | 807.39 | 23.60 | 176.65 | 284.96 | 486.67 | 762.74 | 1045.81 | 1349.95 | 1541.09 | |
MAR16 | 11,471 | 809.19 | 23.11 | 186.10 | 278.63 | 482.46 | 769.72 | 1049.86 | 1366.56 | 1551.01 | |
APR16 | 11,336 | 803.80 | 22.11 | 189.63 | 271.71 | 482.49 | 774.42 | 1051.66 | 1343.94 | 1537.90 | |
MAY16 | 11,420 | 802.68 | 22.23 | 177.66 | 267.94 | 486.04 | 769.90 | 1051.98 | 1353.72 | 1566.13 | |
JUN16 | 11,408 | 797.45 | 21.75 | 177.92 | 275.97 | 481.85 | 770.53 | 1040.95 | 1319.90 | 1543.67 | |
JUL16 | 11,163 | 780.48 | 18.91 | 176.19 | 276.82 | 483.88 | 754.94 | 1010.45 | 1278.72 | 1470.35 | |
AUG16 | 10,825 | 784.52 | 19.36 | 184.49 | 284.85 | 502.57 | 751.59 | 1007.70 | 1284.64 | 1464.19 | |
SEP16 | 10,785 | 783.21 | 19.33 | 185.91 | 269.74 | 502.78 | 751.92 | 1004.81 | 1289.17 | 1458.19 | |
OCT16 | 10,955 | 782.50 | 17.84 | 171.74 | 268.79 | 511.88 | 765.37 | 1010.19 | 1277.60 | 1430.16 | |
NOV16 | 10,904 | 802.70 | 18.41 | 177.84 | 270.94 | 525.96 | 790.33 | 1037.54 | 1305.43 | 1467.04 | |
DEC16 | 10,814 | 803.00 | 19.60 | 178.01 | 276.07 | 526.90 | 786.82 | 1024.78 | 1303.21 | 1504.48 | |
JAN17 | 10,814 | 802.65 | 18.14 | 177.95 | 267.81 | 525.75 | 789.92 | 1024.20 | 1305.19 | 1448.22 | |
FEB17 | 10,800 | 809.35 | 19.20 | 172.64 | 272.62 | 519.85 | 792.72 | 1044.19 | 1319.98 | 1496.41 | |
MAR17 | 10,854 | 826.86 | 21.52 | 185.89 | 281.76 | 519.45 | 801.49 | 1072.72 | 1370.86 | 1550.29 | |
APR17 | 10,489 | 834.85 | 21.69 | 189.33 | 284.22 | 519.88 | 797.65 | 1087.91 | 1385.43 | 1580.46 | |
MAY17 | 10,622 | 847.35 | 21.74 | 183.66 | 295.86 | 521.37 | 816.12 | 1099.71 | 1415.94 | 1608.31 | |
JUN17 | 10,756 | 847.60 | 21.23 | 188.78 | 284.59 | 513.45 | 821.59 | 1105.42 | 1414.80 | 1590.13 | |
JUL17 | 10,854 | 864.77 | 20.46 | 194.77 | 306.57 | 532.52 | 842.38 | 1128.34 | 1434.83 | 1596.72 | |
AUG17 | 10,703 | 851.46 | 20.27 | 198.13 | 301.03 | 525.94 | 824.74 | 1119.05 | 1407.95 | 1577.51 | |
SEP17 | 10,652 | 850.78 | 20.40 | 187.57 | 300.80 | 530.99 | 819.31 | 1116.68 | 1409.10 | 1575.66 | |
OCT17 | 10,648 | 842.73 | 18.62 | 185.99 | 302.73 | 536.11 | 814.72 | 1098.81 | 1396.47 | 1540.61 | |
NOV17 | 10,223 | 833.46 | 21.09 | 173.74 | 277.57 | 528.68 | 802.59 | 1086.55 | 1386.03 | 1543.60 | |
DEC17 | 10,184 | 817.40 | 21.24 | 173.74 | 285.21 | 514.62 | 783.74 | 1054.62 | 1372.86 | 1576.08 | |
JAN18 | 10,262 | 807.40 | 21.46 | 173.82 | 282.97 | 501.26 | 769.47 | 1046.11 | 1353.62 | 1567.33 | |
FEB18 | 10,720 | 814.20 | 19.67 | 166.84 | 275.45 | 512.39 | 768.96 | 1055.75 | 1373.40 | 1574.96 | |
MAR18 | 8,748 | 800.95 | 21.99 | 154.90 | 271.98 | 496.65 | 781.63 | 1046.04 | 1325.57 | 1515.48 | |
APR18 | 9,526 | 822.00 | 20.55 | 173.94 | 277.31 | 509.98 | 792.63 | 1074.52 | 1370.52 | 1544.59 | |
MAY18 | 10,497 | 824.98 | 21.56 | 184.83 | 284.97 | 512.15 | 797.53 | 1081.90 | 1367.32 | 1553.38 | |
JUN18 | 10,868 | 831.67 | 22.10 | 184.46 | 279.69 | 524.55 | 803.72 | 1083.25 | 1386.10 | 1568.19 | |
JUL18 | 11,347 | 837.63 | 23.54 | 174.81 | 279.58 | 521.87 | 801.38 | 1099.95 | 1416.73 | 1584.50 | |
AUG18 | 11,795 | 837.86 | 23.19 | 173.90 | 264.30 | 515.77 | 800.79 | 1106.74 | 1407.89 | 1583.65 | |
SEP18 | 12,047 | 843.82 | 23.47 | 185.86 | 276.76 | 519.74 | 811.00 | 1107.36 | 1410.90 | 1585.23 | |
OCT18 | 11,997 | 835.63 | 23.13 | 183.33 | 276.71 | 519.42 | 807.93 | 1097.98 | 1396.88 | 1563.94 | |
NOV18 | 11,768 | 833.01 | 21.60 | 183.72 | 282.16 | 522.88 | 807.67 | 1093.94 | 1382.47 | 1561.90 | |
DEC18 | 11,665 | 830.34 | 21.91 | 175.51 | 275.29 | 522.84 | 806.56 | 1091.08 | 1372.88 | 1549.34 | |
JAN19 | 11,663 | 815.77 | 21.03 | 172.95 | 274.68 | 513.32 | 788.99 | 1070.17 | 1351.46 | 1524.73 | |
FEB19 | 11,739 | 812.58 | 19.54 | 175.94 | 269.00 | 507.95 | 792.87 | 1076.70 | 1350.45 | 1502.62 | |
MAR19 | 11,882 | 803.72 | 19.95 | 172.02 | 262.99 | 507.69 | 783.23 | 1062.79 | 1334.02 | 1499.16 | |
APR19 | 11,693 | 811.02 | 19.38 | 181.67 | 275.51 | 517.72 | 794.49 | 1067.81 | 1347.55 | 1507.76 | |
MAY19 | 11,649 | 817.04 | 20.41 | 186.34 | 281.98 | 517.74 | 791.83 | 1078.32 | 1381.84 | 1545.93 | |
JUN19 | 11,930 | 821.64 | 20.25 | 184.91 | 279.16 | 517.61 | 796.49 | 1091.42 | 1368.99 | 1543.91 | |
JUL19 | 12,432 | 814.78 | 19.94 | 179.56 | 275.47 | 505.76 | 783.85 | 1084.36 | 1361.25 | 1519.65 | |
AUG19 | 12,498 | 809.16 | 19.65 | 171.63 | 280.69 | 505.83 | 779.54 | 1079.92 | 1360.40 | 1497.53 | |
SEP19 | 12,469 | 814.45 | 19.95 | 179.43 | 276.97 | 511.67 | 794.80 | 1087.73 | 1362.40 | 1502.94 | |
OCT19 | 12,468 | 830.18 | 21.73 | 183.11 | 279.96 | 519.38 | 807.25 | 1105.96 | 1385.61 | 1525.34 | |
NOV19 | 12,314 | 846.72 | 23.19 | 182.60 | 276.99 | 532.49 | 817.57 | 1124.53 | 1396.89 | 1552.88 | |
DEC19 | 12,427 | 842.09 | 23.78 | 187.08 | 286.53 | 537.92 | 814.68 | 1116.04 | 1381.40 | 1542.82 | |
JAN20 | 12,289 | 831.11 | 22.25 | 188.78 | 293.27 | 532.31 | 802.98 | 1094.87 | 1376.96 | 1538.51 | |
FEB20 | 12,229 | 830.77 | 21.13 | 190.98 | 294.97 | 527.46 | 803.67 | 1091.93 | 1368.30 | 1537.99 | |
MAR20 | 12,328 | 835.14 | 21.38 | 184.72 | 291.10 | 531.13 | 809.98 | 1096.02 | 1378.21 | 1553.03 | |
APR20 | 12,126 | 841.78 | 20.27 | 187.82 | 295.38 | 532.92 | 815.18 | 1109.75 | 1380.88 | 1539.00 | |
MAY20 | 12,113 | 843.95 | 20.84 | 185.58 | 286.91 | 525.62 | 812.20 | 1119.24 | 1395.93 | 1539.10 | |
JUN20 | 11,997 | 845.89 | 20.04 | 180.42 | 288.81 | 533.79 | 823.86 | 1120.51 | 1393.33 | 1534.46 | |
JUL20 | 12,044 | 839.11 | 19.78 | 173.83 | 279.93 | 524.97 | 817.79 | 1112.91 | 1392.88 | 1540.90 | |
AUG20 | 11,887 | 841.00 | 20.07 | 174.56 | 278.72 | 524.42 | 818.59 | 1119.70 | 1385.98 | 1538.80 | |
SEP20 | 11,748 | 837.59 | 19.77 | 175.26 | 274.36 | 533.00 | 818.23 | 1116.74 | 1378.26 | 1527.24 | |
OCT20 | 11,662 | 829.85 | 18.90 | 174.04 | 280.84 | 525.80 | 813.46 | 1100.81 | 1361.31 | 1509.26 | |
NOV20 | 11,603 | 825.45 | 18.84 | 187.85 | 283.86 | 527.35 | 803.95 | 1091.75 | 1351.68 | 1480.82 | |
DEC20 | 11,465 | 830.11 | 19.37 | 184.44 | 283.87 | 531.93 | 802.69 | 1097.91 | 1351.76 | 1494.73 | |
JAN21 | 11,259 | 831.81 | 19.74 | 179.48 | 277.99 | 523.37 | 795.75 | 1109.66 | 1374.98 | 1534.84 | |
FEB21 | 9,066 | 835.36 | 20.65 | 181.73 | 276.27 | 516.46 | 802.91 | 1106.81 | 1390.04 | 1551.68 |
Values at each month are based on the average of at least one pre-dialysis measurement obtained within the prior 3 months |
Facility sample transitioned from DOPPS 4 to 5 in Jan-Apr 2012 (see "Study Sample and Methods"). |
Facility sample transitioned from DOPPS 5 to 6 in Mar-Jul 2015 (see "Study Sample and Methods"). |
Facility sample transitioned from DOPPS 6 to 7 in Feb-May 2018 (see "Study Sample and Methods"). |
Source: US-DOPPS Practice Monitor, May 2021; http://www.dopps.org/DPM |