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Gia,

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Medichecks Ferritin Reference Intervals

A quick blog to record these revised ferritin reference intervals.

Thanks to Jazz80 for her tenacity.

Females 18 ≤ age < 40 30 to 180

Females 40 ≤ age < 50 30 to 207

Females 50 ≤ age < 60 30 to 264

Females Age ≥ 60 30 to 332

Males 18 ≤ age < 40 30 to 442

Males Age ≥ 40 30 to 518

The lower limits of 30 are by the NICE threshold of <30 for iron deficiency. Our review of Medichecks data has determined the upper limits. This retrospective study used a large dataset of blood test results from 25,425 healthy participants aged 18 to 97 over seven years. This is the most extensive study on ferritin reference ranges, and we hope to achieve journal publication so that these ranges can be applied more widely.

https://healthunlocked.com/thyroiduk/posts/149789608/total-confusion-about-ferritin-medichecks-results?responses=150395209