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Table 3 Chart review of patients with 25(OH)D ≥ 100 ng/mL

From: Analysis of vitamin D status at two academic medical centers and a national reference laboratory: result patterns vary by age, gender, season, and patient location

    

Number of patients

 

25(OH)D level (ng/ml)

Number of patients

Average age ± SD (yrs)

Number of females

Number of pediatric patientsa

Suspected cause of elevated 25(OH)D

Hypercalcemia at time of 25(OH)D measurement

       

Over-the-counter vitamin D supplements

 

UIHCb

> 200

11

43.9 ± 18.3

5 (45.4%)

1 (9.1%)

4 (36.3%)

4 (36.3%)

0

 

151 – 200

16

58.0 ± 19.6

10 (62.5%)

2 (12.5%)

4 (25.0%)

6 (37.5%)

2 (12.5%)

 

126 – 150

24

53.1 ± 17.4

18 (75.0%)

0

6 (25.0%)

6 (25.0%)

1 (4.2%)

 

100 – 125

58

49.5 ± 20.0

38 (65.5%)

2 (3.4%)

6 (10.3%)

4 (6.9%)

0

WCMC

> 200

5

58.8 ± 21.5

4 (80.0%)

0

1 (20%)

3 (60%)

4 (80%)

 

151 – 200

10

46.0 ± 14.9

7 (70.0%)

0

3 (30%)

4 (40%)c

0

 

126 – 150

6

58.8 ± 12.1

6 (100.0%)

1 (16.7%)

1 (16.7%)

0d

0

 

100 – 125

29

57.0 ± 16.8

25 (86.2%)

0

4 (13.8%)

10 (34.5%)

0

  1. aAge < 18 years old.
  2. bIncluding repeat measurements on patients, there were 16, 22, 27, and 75 total measurements in the > 100 ng/mL, 151–200 ng/mL, 1260–150 ng/mL, and 100–125 ng/mL categories, respectively.
  3. cOne additional patient received monthly 50,000 IU Vitamin D doses, not listed as given by prescription.
  4. dOne additional patient received “Vitamin B12 and D” injections (no doses listed), not listed as given by provider.