The 10 main causes of death were the same in 2006 and 2007. The rankings also remained the same,with one exception. In 2007, Alzheimer's disease was the sixth main cause of death, and diabetes the seventh; the ranks were reversed in 2006. Age-adjusted death rates for six of the 10 main causes of death declined from 2006 to 2007 (from a decline of 1.8% for malignant neoplasms to a decline of 8.4% for influenza and pneumonia). Only the rate for chronic lower respiratory diseases increased (up by 1.7%). No changes were observed in the rates for Alzheimer's disease; nephritis,nephrotic syndrome, and nephrosis; and septicemia.
Source: cdc.gov