Serum 25(oH)D level was negatively correlated with PTH levels, ALP and bmI in multivariate analysis. Serum PTH levels have strong negative correlation with vitamin D levels2 and a negative correlation between ALP and vitamin D levels has been reported5. A negative correlation between 25(oH)D and PTH has been also observed in elderly population18 on admission to nursing home with fracture. Serum PTH levels plateau at 25(oH) D level of 20 ng/dl in this population. However SUvImAX study observed rising trends in PTH at 25(oH)D value 70 year of age.2 This can be interpreted as with increasing age there is decrease in threshold for rise in PTH in relation to 25(oH)D level.