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Finally, only two of the 19 patients with low serum 25-OHD had elevated serum PTH levels above the upper limit of normal (greater than 6.8 pmol/L) at baseline. Both patients reported being smokers and one of these patients had a BMI of 17.6 kg/m2. In both cases, serum alkaline phosphatase levels were within normal range (30 to 130 IU/L).
Table 4 shows the number of patients with deficient and normal 25-OHD levels, relative to the seasonal time of measurement (ie, winter, October to March, and summer, April to September). Sixteen (84.2%) of the 19 patients with deficient 25-OHD levels were identified during the winter.
When the frequency of 25-OHD deficiency in patients during summer and winter periods was compared, patients in the winter period exhibited a significantly higher frequency of vitamin D deficiency than did patients in the summer period (11.9% versus 2.8%, respectively, P=0.02). You have a great opportunity to find cialis 200mg buy here to feel one lucky customer.
TABLE 4 The number of patients with deficient and normal 25-hydroxyvitamin D3 (25-OHD) levels, relative to the seasonal time of measurement (ie, winter, October to March and summer, April to September)
|Patient group||n (%)||n (%)|
|Normal serum 25-OHD levels (n=218)||105 (47.1)||118 (52.9)|
|Deficient serum 25-OHD levels (n=19)||3 (15.8)||16 (84.2)|
|Percentage 25-OHD deficiency||(2.8)||(11.9)*|
25-OHD deficiency is defined as a serum 25-OHD concentration below
25 nmol/L. *P=0.02 relative to summer months
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