Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Sep 17;15(9):e0239252. doi: 10.1371/journal.pone.0239252

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 Kaufman et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

PMC Copyright notice

Fig 3 — SARS-CoV-2 NAAT Positivity Rates and Circulating 25(OH)D Levels by (A) Age Group and (B) Sex. Smooth lines represent the weighted second order polynomial regression fit to the data associating circulating 25(OH)D levels (x) and SARS-CoV-2 positivity rates (y) where: Age <60: y = 0.2161–0.0058*x + 5.6e-05*x²; R² = 0.94. Age ≥60: y = 0.1515–0.0030*x + 2.4e-05*x²; R² = 0.91. Female: y = 0.1837–0.0045*x + 3.9e-05*x²; R² = 0.94. Male: y = 0.2445–0.0068*x + 6.9e-05*x²; R² = 0.94. SI conversion factor: 1 ng/mL = 0.400641 nmol/L.