Analysis of body mass index and first-term attrition of Navy enlisted personnel

Abstract

Sailors often separate from the Navy, despite their best efforts to stay, because they do not meet the Navy's physical standards, which are not always enforced or adequately measured during routine assessments. This research examines the relationship between Navy enlisted recruits' body mass index (BMI) and their likelihood of first-term attrition. A model that controls for characteristic and demographic factors compares the difference between those who enlisted prior to September 11, 2001, and those who enlisted afterward. The data includes sailors who entered up to September 30, 2009, to capture those who would have been able to fulfill a complete four-year term of service. The analysis reviews the possible relationship that exists between the physical standards and attrition. The findings show there is a positive correlation between physical standards and attrition. The research recommends a policy change to the standards for Navy BMI more closely tied with the type of recruits who enter the Navy. Additionally, it is beneficial to look at what types of sailors are exceeding the Navy standard, and their likelihood of attrition. Only the most capable recruits should be entering the service to increase their likelihood of completing their first term.