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Long term calcium intake and rates of all cause and cardiovascular mortality: community based prospective longitudinal cohort study

BMJ 2013; 346 doi: https://doi.org/10.1136/bmj.f228 (Published 13 February 2013) Cite this as: BMJ 2013;346:f228

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Re: Long term calcium intake and rates of all cause and cardiovascular mortality: community based prospective longitudinal cohort study

This is an interesting article, but these things should be pointed out:

1. Were all patients free of cardiovascular risk diseases? To find and describe another cause of cardiovascular risk, it is necessary to rule out and have one hundred per cent certainty that there are no other contributing factors.

2. Why were these patients taking calcium? What was the underlying pathology behind it?

Overlapping statistics: it is known that osteoporosis by itself (and more if complicated by a fracture, i.e, of the hip) conveys a high index of mortality. The five year term in patients with osteoporosis and a fractured hip carries a high level of mortality.

More data are needed before recommending that high risk patients with osteoporosis stop taking calcium, since mortality related to osteoporosis complications is very high.

Competing interests: No competing interests

21 February 2013
Nils R. Pena-Pradel
Internal medicine
Recoletas group Hospital
c. san Antonio, 25, 1ºA, Palencia, 34005. Spain