Copyright © 2008 American Medical Association. All rights reserved. From: Correlation of Plasma 25-Hydroxyvitamin D Levels With Severity of Primary Hyperparathyroidism and Likelihood of Parathyroid Adenoma Localization on Sestamibi Scan Arch Otolaryngol Head Neck Surg. 2008;134(10):1071-1075. doi:10.1001/archotol.134.10.1071 Figure Legend: Box plots of preoperative levels of calcium (A), intact parathyroid hormone (iPTH) (B), and alkaline phosphatase (ALKP) (C) by plasma 25-hydroxyvitamin D (25[OH]D) sufficiency. The boxes represent the interquartile range; the center line is the median; and the bars extend to the 5th and 95th percentiles. To convert 25(OH)D to nanomoles per liter, multiply by 2.496; to convert ALKP to microkatals per liter, multiply by 0.0167; to convert calcium to millimoles per liter, multiply by 0.25; to convert iPTH to nanograms per liter, multiply by 0.1053. Date of download: 11/16/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Correlation of Plasma 25-Hydroxyvitamin D Levels With Severity of Primary Hyperparathyroidism and Likelihood of Parathyroid Adenoma Localization on Sestamibi Scan Arch Otolaryngol Head Neck Surg. 2008;134(10):1071-1075. doi:10.1001/archotol.134.10.1071 Figure Legend: Linear regression plots of preoperative level of plasma 25-hydroxyvitamin D (25[OH]D) by levels of calcium (11.2500 − 0.0060 × 25[OH]D) (A); intact parathyroid hormone (iPTH) (185.6000 − 1.9679 × 25[OH]D) (B); and alkaline phosphatase (ALKP) (112.26 − 0.6701 × 25[OH]D) (C). To convert 25(OH)D to nanomoles per liter, multiply by 2.496; to convert ALKP to microkatals per liter, multiply by 0.0167; to convert calcium to millimoles per liter, multiply by 0.25; to convert iPTH to nanograms per liter, multiply by 0.1053. Date of download: 11/16/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Correlation of Plasma 25-Hydroxyvitamin D Levels With Severity of Primary Hyperparathyroidism and Likelihood of Parathyroid Adenoma Localization on Sestamibi Scan Arch Otolaryngol Head Neck Surg. 2008;134(10):1071-1075. doi:10.1001/archotol.134.10.1071 Figure Legend: Level of plasma 25-hydroxyvitamin D (25[OH]D) by adenoma weight. A, Linear regression (1271.9900 − 14.7157 × 25[OH]D). B, In the box plot, the boxes represent the interquartile range; the center line is the median; and the bars extend to the 5th and 95th percentiles. To convert 25(OH)D to nanomoles per liter, multiply by 2.496. Date of download: 11/16/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Correlation of Plasma 25-Hydroxyvitamin D Levels With Severity of Primary Hyperparathyroidism and Likelihood of Parathyroid Adenoma Localization on Sestamibi Scan Arch Otolaryngol Head Neck Surg. 2008;134(10):1071-1075. doi:10.1001/archotol.134.10.1071 Figure Legend: Effect of preoperative plasma levels of 25-hydroxyvitamin D (25[OH]D) on postoperative serum calcium levels and percentage change vs preoperative levels in patients with primary hyperparathyroidism. A and B, Measured 1 week after surgery. C and D, Measured 6 months after surgery. All boxes represent the interquartile range; the center line is the median; and the bars extend to the 5th and 95th percentiles. To convert 25(OH)D to nanomoles per liter, multiply by 2.496; to convert calcium to millimoles per liter, multiply by 0.25. Date of download: 11/16/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Correlation of Plasma 25-Hydroxyvitamin D Levels With Severity of Primary Hyperparathyroidism and Likelihood of Parathyroid Adenoma Localization on Sestamibi Scan Arch Otolaryngol Head Neck Surg. 2008;134(10):1071-1075. doi:10.1001/archotol.134.10.1071 Figure Legend: Relationship between preoperative serum levels of 25-hydroxyvitamin D (25[OH]D) and technetium Tc 99m sestamibi scintigraphy findings. To convert 25(OH)D to nanomoles per liter, multiply by 2.496. Date of download: 11/16/2017 Copyright © 2008 American Medical Association. All rights reserved.