Bradford Volk1. 1. Undersea Medical Officer, COMSUBGRU7 PSC 473 Box 50, FPO AP 96349-0053 Yokosuka, Japan.
Abstract
UNLABELLED: In 1970, a study completed in accordance with the Naval Submarine Medical Research Laboratory in Groton, Connecticut, concluded that U.S. Navy personnel serving aboard nuclear-powered submarines tended to have a higher ratio of female offspring compared with the general U.S. population. To date, there has not been an examination as to whether or not this remains true today. OBJECTIVE: Estimation of the sex ratio (SR) in the offspring of the current U.S. Navy submariner population, examining potential contributing factors, including rating, rank, and tobacco use, was the aim of this study. METHODS: Between November 2002 and May 2003, 597 male active duty U.S. Navy submariners were surveyed in reference to their age, rating, and rank, time in the submarine community, age and gender of their children, and their lifetime tobacco use. RESULTS: Of the 597 submariners who completed the survey, 259 of them had fathered children. A total of 413 submariner offspring were included in the results. Of these offspring, there were 222 boys and 191 girls, forming a SR (percentage of male offspring) of 53.75%. Unlike the study from more than 30 years ago, there was no statistically significant difference compared with the SR of the U.S. general population during this time, 51.17% (p = 0.29). However, within the study population, there was a trend toward lower SRs as the father's total time in the submarine community increased (p = 0.06). A stratified analysis by rating found that sonar technicians had a statistically significant lower SR of 34.5% (p = 0.03). Smokers were noted to have a higher ratio of male offspring compared with non-smokers, although this finding was not statistically significant (p = 0.46).
UNLABELLED: In 1970, a study completed in accordance with the Naval Submarine Medical Research Laboratory in Groton, Connecticut, concluded that U.S. Navy personnel serving aboard nuclear-powered submarines tended to have a higher ratio of female offspring compared with the general U.S. population. To date, there has not been an examination as to whether or not this remains true today. OBJECTIVE: Estimation of the sex ratio (SR) in the offspring of the current U.S. Navy submariner population, examining potential contributing factors, including rating, rank, and tobacco use, was the aim of this study. METHODS: Between November 2002 and May 2003, 597 male active duty U.S. Navy submariners were surveyed in reference to their age, rating, and rank, time in the submarine community, age and gender of their children, and their lifetime tobacco use. RESULTS: Of the 597 submariners who completed the survey, 259 of them had fathered children. A total of 413 submariner offspring were included in the results. Of these offspring, there were 222 boys and 191 girls, forming a SR (percentage of male offspring) of 53.75%. Unlike the study from more than 30 years ago, there was no statistically significant difference compared with the SR of the U.S. general population during this time, 51.17% (p = 0.29). However, within the study population, there was a trend toward lower SRs as the father's total time in the submarine community increased (p = 0.06). A stratified analysis by rating found that sonar technicians had a statistically significant lower SR of 34.5% (p = 0.03). Smokers were noted to have a higher ratio of male offspring compared with non-smokers, although this finding was not statistically significant (p = 0.46).
Authors: James W Choi; Praveen Mehrotra; Lee A Macdonald; Lloyd W Klein; Norm M Linsky; Anne M Smith; Mark J Ricciardi Journal: Proc (Bayl Univ Med Cent) Date: 2007-07
Authors: Hadi Ghasemi; Seyedeh Reihaneh Mirdehghan; Mahshid Namdari; Fariborz Bayat Journal: Environ Health Prev Med Date: 2016-06-21 Impact factor: 3.674