Serum phosphorus (3 month average), categories

    < 3.5 mg/dl 3.5-4.5 mg/dl 4.6-5.5 mg/dl 5.6-7.0 mg/dl > 7.0 mg/dl
Total N N Weighted % N Weighted % N Weighted % N Weighted % N Weighted %
National sample Month                      
Overall AUG10 3,295 201 5.8% 782 25.3% 1,022 31.7% 930 26.6% 360 10.5%
SEP10 3,305 183 5.5% 813 26.2% 1,072 32.6% 887 24.5% 350 11.3%
OCT10 3,304 179 5.3% 807 25.4% 1,091 33.3% 874 24.9% 353 11.1%
NOV10 3,314 178 5.2% 834 26.9% 1,081 33.2% 877 24.6% 344 10.1%
DEC10 3,611 196 5.5% 941 26.4% 1,119 32.0% 965 25.9% 390 10.2%
JAN11 3,532 195 5.6% 884 25.7% 1,136 33.4% 936 24.9% 381 10.4%
FEB11 3,493 200 5.5% 875 26.7% 1,081 30.1% 939 26.4% 398 11.3%
MAR11 3,519 194 6.1% 876 23.9% 1,129 33.1% 927 26.8% 393 10.2%
APR11 3,755 221 5.7% 922 23.8% 1,225 34.3% 965 25.3% 422 10.8%
MAY11 3,746 225 5.9% 908 24.5% 1,198 32.6% 1,016 26.8% 399 10.2%
JUN11 3,692 230 5.7% 908 25.7% 1,186 31.9% 963 25.7% 405 10.9%
JUL11 3,727 233 6.4% 912 26.1% 1,231 32.1% 942 24.3% 409 11.0%
AUG11 3,898 270 6.9% 1,014 27.4% 1,224 30.7% 989 24.6% 401 10.4%
SEP11 3,862 277 7.3% 1,005 25.3% 1,257 32.9% 933 24.9% 390 9.5%
OCT11 3,744 268 7.1% 978 26.1% 1,221 33.1% 918 25.2% 359 8.6%
NOV11 3,643 253 6.7% 1,023 28.9% 1,151 32.4% 863 23.8% 353 8.2%
DEC11 3,653 262 6.3% 1,014 28.3% 1,166 33.1% 841 22.7% 370 9.5%
JAN12 3,267 216 6.2% 882 28.5% 1,044 32.5% 780 22.4% 345 10.4%
FEB12 3,186 217 6.7% 817 26.6% 1,041 33.6% 793 23.0% 318 10.1%
MAR12 1,715 118 8.0% 456 26.1% 541 30.0% 418 22.6% 182 13.2%
APR12 7,406 632 7.9% 1,986 29.5% 2,277 31.6% 1,831 21.8% 680 9.3%
MAY12 8,836 645 7.1% 2,432 29.5% 2,762 32.1% 2,251 21.5% 746 9.9%
JUN12 9,403 731 7.6% 2,504 28.8% 2,958 32.5% 2,387 22.0% 823 9.1%
JUL12 9,910 775 7.2% 2,633 28.4% 3,142 32.5% 2,466 22.6% 894 9.3%
AUG12 10,421 849 8.7% 2,798 29.6% 3,237 31.8% 2,637 21.2% 900 8.8%
SEP12 10,618 874 8.2% 2,910 29.3% 3,296 32.6% 2,628 21.4% 910 8.6%
OCT12 10,654 873 6.9% 3,003 30.6% 3,291 31.8% 2,587 21.5% 900 9.2%
NOV12 10,858 823 6.0% 3,052 31.5% 3,442 33.1% 2,612 20.1% 929 9.3%
DEC12 10,940 852 7.6% 2,989 30.9% 3,472 32.4% 2,663 20.5% 964 8.6%
JAN13 10,876 807 6.6% 2,901 29.7% 3,458 33.9% 2,737 21.5% 973 8.3%
FEB13 10,988 838 7.5% 2,932 30.7% 3,443 33.6% 2,814 19.4% 961 8.9%
MAR13 11,157 861 7.3% 2,935 29.4% 3,578 33.8% 2,836 21.2% 947 8.2%
APR13 11,005 849 7.1% 2,906 28.3% 3,572 35.0% 2,683 20.4% 995 9.2%
MAY13 10,918 825 8.1% 2,848 29.0% 3,583 34.1% 2,703 20.1% 959 8.5%
JUN13 11,017 854 8.4% 2,891 28.9% 3,602 33.9% 2,687 20.5% 983 8.4%
JUL13 10,935 824 7.5% 2,897 29.3% 3,498 32.8% 2,728 21.7% 988 8.8%
AUG13 10,988 837 7.8% 2,882 30.0% 3,594 32.3% 2,737 21.8% 938 8.1%
SEP13 10,880 807 8.0% 2,892 29.7% 3,579 32.5% 2,654 22.5% 948 7.3%
OCT13 10,791 797 6.7% 2,901 30.4% 3,553 35.3% 2,628 21.0% 912 6.6%
NOV13 10,792 808 7.4% 2,873 29.1% 3,494 35.4% 2,702 20.3% 915 7.8%
DEC13 10,811 778 6.5% 2,807 29.4% 3,454 33.9% 2,763 21.4% 1,009 8.8%
JAN14 10,651 722 7.8% 2,789 27.6% 3,365 33.8% 2,785 22.1% 990 8.6%
FEB14 10,633 742 7.6% 2,730 28.0% 3,372 32.6% 2,819 22.9% 970 8.9%
MAR14 10,480 719 7.5% 2,665 27.8% 3,392 32.6% 2,760 22.9% 944 9.1%
APR14 10,312 696 6.4% 2,594 27.0% 3,410 34.6% 2,679 22.2% 933 9.7%
MAY14 10,343 665 6.2% 2,657 25.2% 3,381 35.5% 2,664 23.1% 976 10.1%
JUN14 10,464 728 6.6% 2,650 25.4% 3,436 34.1% 2,694 23.7% 956 10.2%
JUL14 10,560 710 5.8% 2,704 25.9% 3,397 34.0% 2,780 24.2% 969 10.1%
AUG14 10,592 715 6.9% 2,678 27.3% 3,510 32.0% 2,736 24.8% 953 9.1%
SEP14 10,531 758 7.3% 2,672 27.6% 3,455 31.6% 2,744 24.1% 902 9.5%
OCT14 10,687 755 6.7% 2,854 29.2% 3,379 31.7% 2,782 24.0% 917 8.3%
NOV14 10,600 766 6.9% 2,817 27.7% 3,329 32.0% 2,784 25.2% 904 8.3%
DEC14 10,556 730 7.2% 2,673 25.8% 3,405 33.0% 2,767 24.6% 981 9.4%
JAN15 10,505 698 7.0% 2,622 26.3% 3,439 32.2% 2,731 25.1% 1,015 9.5%
FEB15 10,549 737 6.7% 2,616 25.6% 3,347 32.7% 2,808 25.5% 1,041 9.5%
MAR15 8,382 556 6.8% 2,068 26.8% 2,662 31.6% 2,300 24.6% 796 10.2%
APR15 9,421 585 6.8% 2,317 26.0% 3,030 32.8% 2,579 24.1% 910 10.3%
MAY15 9,958 628 6.4% 2,394 24.6% 3,250 34.4% 2,720 24.4% 966 10.2%
JUN15 10,402 628 5.5% 2,533 25.7% 3,426 34.0% 2,796 24.9% 1,019 9.9%
JUL15 10,787 735 6.4% 2,636 26.0% 3,473 33.4% 2,891 24.1% 1,052 10.0%
AUG15 10,885 745 6.9% 2,703 26.4% 3,548 34.4% 2,831 23.1% 1,058 9.3%
SEP15 10,906 748 6.8% 2,786 26.7% 3,505 33.0% 2,803 24.1% 1,064 9.3%
OCT15 10,967 739 6.4% 2,813 27.1% 3,522 33.8% 2,829 22.8% 1,064 9.9%
NOV15 11,058 731 6.2% 2,796 26.4% 3,519 33.1% 2,880 23.7% 1,132 10.6%
DEC15 11,044 700 5.9% 2,704 25.6% 3,567 33.9% 2,949 24.4% 1,124 10.2%
JAN16 11,039 681 5.9% 2,628 24.3% 3,586 33.5% 2,987 25.8% 1,157 10.5%
FEB16 10,984 677 5.8% 2,612 25.5% 3,520 31.4% 3,005 26.0% 1,170 11.3%
MAR16 11,219 683 5.3% 2,685 25.1% 3,567 32.6% 3,080 26.1% 1,204 10.8%
APR16 11,140 640 4.9% 2,639 25.8% 3,588 33.0% 3,095 25.4% 1,178 11.0%
MAY16 11,236 616 4.3% 2,642 24.6% 3,614 34.1% 3,147 26.2% 1,217 10.8%
JUN16 11,223 645 4.6% 2,621 24.8% 3,621 34.2% 3,142 25.7% 1,194 10.7%
JUL16 10,928 663 4.9% 2,570 25.6% 3,495 33.6% 3,050 25.9% 1,150 10.0%
AUG16 10,768 681 5.8% 2,488 24.4% 3,528 35.2% 2,951 24.3% 1,120 10.2%
SEP16 10,680 677 5.8% 2,513 24.5% 3,411 34.1% 2,993 25.1% 1,086 10.5%
OCT16 10,782 690 5.2% 2,576 25.8% 3,458 34.1% 2,938 23.9% 1,120 11.0%
NOV16 10,589 685 5.2% 2,516 26.0% 3,479 33.7% 2,793 24.3% 1,116 10.8%
DEC16 10,595 667 5.5% 2,503 25.9% 3,447 33.1% 2,860 24.3% 1,118 11.2%
JAN17 10,666 631 5.2% 2,604 26.2% 3,453 34.1% 2,872 23.3% 1,106 11.1%
FEB17 10,543 613 4.8% 2,661 26.9% 3,322 33.2% 2,847 24.3% 1,100 10.7%
MAR17 10,545 640 5.3% 2,608 26.2% 3,432 34.1% 2,773 23.8% 1,092 10.7%
APR17 10,375 620 4.8% 2,503 26.6% 3,321 33.2% 2,834 24.1% 1,097 11.2%
MAY17 10,484 592 4.4% 2,422 25.7% 3,404 34.0% 2,906 24.1% 1,160 11.8%
JUN17 10,603 584 4.9% 2,389 24.6% 3,442 33.6% 3,001 25.0% 1,187 11.9%
JUL17 10,631 574 4.1% 2,386 25.1% 3,487 34.4% 2,998 24.7% 1,186 11.7%
AUG17 10,588 577 4.7% 2,408 23.9% 3,455 34.2% 2,940 25.6% 1,208 11.6%
SEP17 10,453 602 6.1% 2,409 24.0% 3,362 33.5% 2,927 25.0% 1,153 11.4%
OCT17 10,576 617 5.3% 2,496 25.3% 3,418 32.8% 2,938 25.8% 1,107 10.8%
NOV17 10,360 620 5.3% 2,412 24.1% 3,333 34.1% 2,891 25.7% 1,104 10.9%
DEC17 10,367 579 5.4% 2,381 24.4% 3,353 33.1% 2,916 25.6% 1,138 11.5%
JAN18 10,404 581 4.7% 2,359 24.4% 3,279 33.7% 2,960 24.7% 1,225 12.5%
FEB18 10,450 609 5.2% 2,369 23.5% 3,353 34.9% 2,953 25.2% 1,166 11.3%
MAR18 6,820 419 5.5% 1,530 23.4% 2,145 30.9% 1,975 28.5% 751 11.7%
APR18 9,602 555 5.6% 2,218 23.4% 3,038 32.0% 2,709 26.7% 1,082 12.2%
MAY18 10,368 572 5.4% 2,366 22.5% 3,309 33.5% 2,939 26.4% 1,182 12.1%
JUN18 10,723 585 5.3% 2,405 22.6% 3,437 32.7% 3,023 27.3% 1,273 12.2%
JUL18 11,138 620 5.6% 2,510 23.6% 3,550 32.0% 3,082 26.2% 1,376 12.6%
AUG18 11,570 630 5.0% 2,620 23.8% 3,697 32.8% 3,263 26.6% 1,360 11.7%
SEP18 11,716 647 5.1% 2,682 23.3% 3,738 33.3% 3,241 26.3% 1,408 12.0%
OCT18 11,751 665 4.7% 2,636 22.8% 3,793 33.6% 3,247 26.5% 1,410 12.4%
NOV18 11,558 657 4.8% 2,576 23.2% 3,749 33.5% 3,162 26.3% 1,414 12.3%
DEC18 11,559 651 5.1% 2,572 22.6% 3,704 33.0% 3,210 26.6% 1,422 12.8%
JAN19 11,458 639 5.0% 2,554 22.5% 3,538 31.1% 3,323 28.3% 1,404 13.1%
FEB19 11,472 672 5.3% 2,502 21.6% 3,573 31.4% 3,309 28.5% 1,416 13.1%
MAR19 11,652 671 5.5% 2,561 21.8% 3,666 31.4% 3,325 27.8% 1,429 13.4%
APR19 11,444 651 5.0% 2,538 21.7% 3,613 31.5% 3,253 28.4% 1,389 13.4%
MAY19 11,405 653 5.4% 2,481 20.4% 3,669 33.0% 3,218 27.8% 1,384 13.4%
JUN19 11,609 658 4.7% 2,476 21.0% 3,667 31.4% 3,335 29.0% 1,473 13.9%
JUL19 12,183 682 4.9% 2,543 20.5% 3,885 31.5% 3,497 28.8% 1,576 14.3%
AUG19 12,336 653 4.7% 2,640 20.5% 3,804 31.6% 3,637 28.9% 1,602 14.3%
SEP19 12,030 626 4.5% 2,623 21.9% 3,672 30.4% 3,501 28.8% 1,608 14.5%
OCT19 12,394 644 4.3% 2,699 21.3% 3,774 31.4% 3,546 28.2% 1,731 14.8%
NOV19 12,071 616 4.7% 2,608 20.4% 3,651 32.1% 3,497 28.1% 1,699 14.7%
DEC19 12,225 654 5.1% 2,613 21.2% 3,682 31.9% 3,572 27.5% 1,704 14.3%
JAN20 12,123 654 5.3% 2,580 21.3% 3,641 30.9% 3,568 27.9% 1,680 14.6%
FEB20 12,125 671 5.2% 2,618 21.2% 3,681 31.6% 3,491 27.4% 1,664 14.6%
MAR20 11,874 643 5.4% 2,625 21.8% 3,671 32.2% 3,294 25.9% 1,641 14.7%
APR20 11,838 659 5.6% 2,596 22.1% 3,623 31.3% 3,307 26.8% 1,653 14.2%
MAY20 11,769 610 5.3% 2,488 21.4% 3,539 30.9% 3,410 28.1% 1,722 14.4%
JUN20 11,604 608 4.9% 2,366 20.6% 3,453 30.7% 3,425 28.6% 1,752 15.2%
JUL20 11,319 523 4.3% 2,317 20.9% 3,425 31.5% 3,323 27.8% 1,731 15.5%
AUG20 9,139 485 4.8% 1,788 20.1% 2,737 31.9% 2,677 27.2% 1,452 16.0%

Values at each month are based on the average of at least two pre-dialysis measurements 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, October 2020; http://www.dopps.org/DPM