Bacteriology
The epidemiology of self-reported diarrhea in operations Iraqi freedom and enduring freedom

https://doi.org/10.1016/j.diagmicrobio.2004.06.008Get rights and content

Abstract

Diarrhea remains a potential cause of compromised military effectiveness. To assess diarrhea rates and mission impact in operations in Iraq and Afghanistan, a survey was administered to soldiers participating in the “Rest and Recuperation” program in Doha, Qatar. Between October and December 2003, 2,389 volunteers completed a questionnaire designed to assess the occurrence and impact of diarrhea. The median length of deployment was 7.2 months, 70% reported at least one episode, and 56% had multiple episodes of diarrhea. Overall, 43% reported decreased job performance for a median of 2 days, and 17% reported being on bed rest for a median of 2 days. While this survey showed high rates of diarrhea associated with decreased operational effectiveness, the results are consistent with prior military operations in this region. Further research is needed to develop better methods for illness prevention and its minimization on operational impact.

Introduction

Historically, diarrhea is one of the most common medical conditions afflicting deployed military personnel (Cook, 2001) with an average incidence of 29% per month (Sanchez et al., 1998). While diarrhea is generally a self-limited illness, the associated morbidity taxes operational health care resources, causes alterations in mission planning and may reduce mission effectiveness through temporary manpower losses. During the Korean War, 78,970 days from duty were lost due to diarrhea and dysentery. In Vietnam, admission rates to hospitals or quarters was higher than malaria by a 4:1 ratio, making it the largest single disease of the war (Connor and Farthing, 1999). During the first Gulf War, up to 57% of deployed military personnel reported diarrhea, with 20% temporarily unable to perform their duties (Hyams et al., 1991).

Currently, there are approximately 130,000 U.S. military personnel deployed to Operation Iraqi Freedom (OIF) and an additional 10,000 deployed to Operation Enduring Freedom (OEF) in Afghanistan. Considering the history of diarrhea among deployed military forces, it is likely having a significant influence on daily operations despite modern preventive medicine measures. To assess the impact of diarrhea on operational effectiveness, a system was established to survey soldiers while on a “Rest and Recuperation” (R&R) program at Camp As Sayliyah in Doha, Qatar.

Section snippets

Materials and methods

The U.S. Army systematically selected units from Iraq and Afghanistan to participate in the R&R program. Troops from these units were sent to Camp As Sayliyah in Doha, Qatar, the principal R&R location. Upon arrival, volunteers completed a questionnaire adapted from previous studies designed to assess diarrhea incidence, associated symptoms, treatment; and mission impact (Sanders et al., 2002). Diarrhea was defined as three or more loose or liquid stools in 24 hours, or two or more loose or

Results

The study was conducted from October 27 to December 4, 2003. Of the 5,309 U.S. military personnel participating in R&R during that period, 2,389 (45%) individuals completed the questionnaire, representing approximately 2% of the personnel deployed to Iraq and Afghanistan (Iraq = 2,130, Afghanistan = 181, missing = 78). The distribution of military rank among all personnel participating in R&R and those completing the questionnaire were similar. Troops were deployed a median of 7.2 months [IQR

Discussion

The R&R program offered a unique opportunity to estimate diarrhea incidence and its impact on troops deployed to Iraq and Afghanistan. Given the broad sampling of the deployed population and the number of respondents, our results should represent the collective experience of U.S. military personnel deployed to these areas. Demographics of the surveyed individuals closely reflect the demographics of combat-ready troops in the U.S. Army (‘Army Demographics FY03’, Office of the Deputy Chief of

Author's contributions

Study Concept/Design: Sanders, Putnam, Riddle, Tribble, Jobanputra; Acquisition of Data: Sanders, Jones, Jobanputra; Analysis: Putnam, Riddle; Interpretation: Sanders, Putnam, Riddle, Tribble; Drafting manuscript: Sanders, Putnam, Riddle, Jobanputra; Critical revision of the manuscript for important intellectual content: Sanders, Putnam, Riddle, Scott, Tribble, Frenck; Statistical expertise: Putnam, Riddle; Obtained funding: Sanders, Frenck, Scott; Administrative/technical/material support:

Acknowledgements

NAMRU3: Manal Mustafa, Yasmine Farid, Mohammed Assem, and Amani Badawi; NAMRU2: Andrew Whitehurst; Camp As Sayliyah (Doha, Qatar): SSGT Christopher Parks, Jaime Bland, CPT Kenneth Brooks.

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