The mean 25-OHD level in the total sample was 13.2 (SD 11.1)
ng/
ml. Levels of 25-OHD 65 pg/
ml). 25-OHD levels of 12-20
ng/
ml were present in 168 (27.7 %) patients, of whom 47 (28 %) had SHPT. Following logistic regression, SHPT was associated in both groups (25-OHD <12 and 12-20 ng/ml) with a greater number of medical problems during hospitalization. In the 25-OHD group <12 ng/ml, SHPT was also associated with poorer glomerular filtration rates.