IGF-1 by age and sex
How the usual range for IGF-1 changes with age and sex, 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.
| Who | Usual range |
|---|---|
| Women, under 1 | 14–106 ng/mL |
| Women, 1 | 23–136 ng/mL |
| Women, 2 | 30–163 ng/mL |
| Women, 3 | 34–192 ng/mL |
| Women, 4 | 38–217 ng/mL |
| Women, 5 | 46–243 ng/mL |
| Women, 6 | 56–268 ng/mL |
| Women, 7 | 64–288 ng/mL |
| Women, 8 | 74–337 ng/mL |
| Women, 9 | 81–405 ng/mL |
| Women, 10 | 85–526 ng/mL |
| Women, 11 | 91–610 ng/mL |
| Women, 12 | 110–656 ng/mL |
| Women, 13 | 150–678 ng/mL |
| Women, 14 | 174–656 ng/mL |
| Women, 15 | 156–586 ng/mL |
| Women, 16 | 140–517 ng/mL |
| Women, 17 | 130–471 ng/mL |
| Women, 18 | 117–430 ng/mL |
| Women, 19 | 113–408 ng/mL |
| Women, 20 | 108–384 ng/mL |
| Women, 21–25 | 101–347 ng/mL |
| Women, 26–30 | 91–308 ng/mL |
| Women, 31–35 | 84–281 ng/mL |
| Women, 36–40 | 79–259 ng/mL |
| Women, 41–45 | 74–239 ng/mL |
| Women, 46–50 | 70–225 ng/mL |
| Women, 51–55 | 65–216 ng/mL |
| Women, 56–60 | 60–207 ng/mL |
| Women, 61–65 | 57–202 ng/mL |
| Women, 66–70 | 52–196 ng/mL |
| Women, 71–75 | 48–191 ng/mL |
| Women, 76–80 | 42–185 ng/mL |
| Women, 81–85 | 39–177 ng/mL |
| Women, 86–90 | 34–169 ng/mL |
| Men, under 1 | 18–79 ng/mL |
| Men, 1 | 20–108 ng/mL |
| Men, 2 | 24–135 ng/mL |
| Men, 3 | 28–148 ng/mL |
| Men, 4 | 32–165 ng/mL |
| Men, 5 | 37–196 ng/mL |
| Men, 6 | 43–229 ng/mL |
| Men, 7 | 50–243 ng/mL |
| Men, 8 | 59–275 ng/mL |
| Men, 9 | 67–315 ng/mL |
| Men, 10 | 75–366 ng/mL |
| Men, 11 | 82–423 ng/mL |
| Men, 12 | 87–519 ng/mL |
| Men, 13 | 101–620 ng/mL |
| Men, 14 | 123–701 ng/mL |
| Men, 15 | 161–760 ng/mL |
| Men, 16 | 171–748 ng/mL |
| Men, 17 | 161–635 ng/mL |
| Men, 18 | 145–506 ng/mL |
| Men, 19 | 122–435 ng/mL |
| Men, 20 | 116–410 ng/mL |
| Men, 21–25 | 109–353 ng/mL |
| Men, 26–30 | 101–307 ng/mL |
| Men, 31–35 | 95–290 ng/mL |
| Men, 36–40 | 90–278 ng/mL |
| Men, 41–45 | 84–270 ng/mL |
| Men, 46–50 | 81–263 ng/mL |
| Men, 51–55 | 74–255 ng/mL |
| Men, 56–60 | 68–247 ng/mL |
| Men, 61–65 | 64–240 ng/mL |
| Men, 66–70 | 59–230 ng/mL |
| Men, 71–75 | 53–222 ng/mL |
| Men, 76–80 | 45–207 ng/mL |
| Men, 81–85 | 40–194 ng/mL |
| Men, 86–90 | 33–176 ng/mL |
Sources: Labcorp, Mayo Clinic Laboratories, ARUP Laboratories