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NK cells (%) by age and sex

How the usual range for NK cells (%) changes with age, as labs print it.

AI-verified against cited sources. Awaiting expert review

The usual range at every age

The reference range labs print, for each age group. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

Use the left and right arrow keys to step through the age groups. Every range is also in the table below.

Usual range of NK cells (%) by age, in % of lymphocytes
WhoUsual range
under 0.0196–58 % of lymphocytes
0.019–-0.8333–23 % of lymphocytes
0.167–-0.5832–14 % of lymphocytes
0.417–-0.252–13 % of lymphocytes
0.75–0.253–17 % of lymphocytes
1.25–13–16 % of lymphocytes
2–44–23 % of lymphocytes
5–94–26 % of lymphocytes
10–156–27 % of lymphocytes
16+1–19 % of lymphocytes

Sources: Labcorp, ARUP Laboratories, EJIFCC (International Federation of Clinical Chemistry and Laboratory Medicine)