When reviewing older literature or reports from different countries sometimes there are differences in how laboratory date are reported. If glucose was reported as “ 2,42 g. 0/00 “, how would you convert this into mg/dL?
The ‰ notation is called permille or permil and represents parts per thousand. It’s a measure of concentration similar to the concept of percent
So 75‰ is 75 parts per thousand, like 75% is 75 parts per hundred. Gram 0/00 which would be grams per 1000mL or grams per liter.
So 2,42 g. 0/00= 2.42 g / 1000mL = 2420mg / 1000mL = 242 mg / 100mL = 242 mg / dL
An example of an article using ‰.
Barbera A, Borja H, Barbera L, Masoli P. Intoxicación aguda por isoniazida [Acute isoniazid poisoning]. Rev Clin Esp. 1976 Jan 31;140(2):163-70. Spanish. PMID: 1251070.
Submitted by: Greene Shepherd, PharmD, DABAT