Top stories in health and medicine, March 22, 2013

Brought to you by MedPage Today.

1. Race a Factor in Decision to Amputate a Leg? Amputation for peripheral arterial disease was nearly twice as likely for blacks as for whites, despite access to good hospitals or high patient income.

2. The Gupta Guide: Autism — What Is Happening Here? A report out this week stating that one in 50 school children carries an autism diagnosis appears to confirm anecdotal evidence that we are experiencing an increase in the autism rate.

3. Whole World Uses Too Much Salt, Study Finds. Salt intake worldwide is at least twice what it should be, with a big impact on global health.

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