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Table 4 Unadjusted and adjusteda odds ratios (95% confidence intervals) for exposure variables and included covariates from a conditional logistic regression model evaluating the risk of specific reactive arthritis and non-specific arthralgia/arthropathy among active duty US military personnel from 1999 to 2007

From: The epidemiology of infectious gastroenteritis related reactive arthritis in U.S. military personnel: a case-control study

Model

Variable

All Specific ReA

Nonspecific Arthralgia/Arthropathy

Univariate

Prior exposure b

4.50 (2.30, 8.82)

1.80 (1.53, 2.12)

 

High risk deployment c

2.12 (1.40, 3.21)

0.47 (0.42, 0.52)

 

Army service

0.77 (0.63, 0.95)

1.54 (1.48, 1.59)

 

Married

0.96 (0.76, 1.22)

1.22 (1.17, 1.27)

 

Non-white

0.63 (0.50, 0.78)

1.11 (1.07, 1.15)

 

Enlisted rank

1.04 (0.79, 1.37)

1.68 (1.60, 1.76)

Multivariate

Prior exposure b

4.42 (2.24, 8.73)

1.76 (1.49, 2.07)

 

High risk deployment c

2.07 (1.36, 3.15)

0.46 (0.41, 0.51)

 

Army service

0.77 (0.62, 0.94)

1.54 (1.49, 1.60)

 

Married

0.97 (0.76, 1.23)

1.21 (1.16, 1.27)

 

Enlisted rank

1.03 (0.78, 1.36)

1.66 (1.58, 1.74)

  1. a Adjusted for all covariates retained in the final model (prior exposure, high risk deployment, Army service, married, non-white and enlisted rank)
  2. b Defined as an infectious diarrhea diagnosis six months prior to ReA diagnosis (cases) or censoring (controls)
  3. c Defined as deployment to a region at high risk for travelers' diarrhea (Iraq, Afghanistan, Persian Gulf or Southwest Asia) six months prior to ReA diagnosis (cases) or censoring (controls)