Assessing Health Outcomes Among Veterans of Project SHAD (Shipboard Hazard and Defense) (2016) / Chapter Skim
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5 Morbidity Results
5 Morbidity Results
Pages 91-104
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From page 91... ...
Approximately similar proportions of both groups were enrolled, starting at about 9 percent in 1999 and increasing to nearly 40 percent by 2011. However, an evaluation using logistic regression found the enrollment levels of Project SHAD participants were statistically significantly higher than those in the comparison group over the period of 13 years, and the SHAD participants also had statistically significantly higher annual increases in enrollment than the comparison group.
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From page 92... ...
As with Medicare, the SHAD participants had statistically significantly higher levels as well as annual increases in use of VHA services than the comparison group (see Table 5-2)
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From page 93... ...
When comparing those who were hospitalized through Medicare during the period 1999-2011 (see Table 5-3) , Project SHAD participants had lower median hospital days per
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From page 94... ...
One TABLE 5-3 Hospital Days Reflected in Medicare Fee-for-Service Claims for Project SHAD Participants and the Comparison Population Hospitalized Through Medicare, 1999-2011 Project SHAD Comparison Participants Population Ever in Medicare Ever Medicare N = 3,197 N = 3,506 Wilcoxon P-value Hospitalized through Medicare 1,335 (41.8%)
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From page 95... ...
R 3.1.1 was used for the Fisher's exact test and construction of confidence intervals with a two-sided alternative. No statistically significant differences were seen under the alternative of odds ratio greater than one.
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From page 96... ...
The percentage of SHAD veterans with an infectious disease or a musculoskeletal diagnosis was statistically significantly lower than that of the comparison population, but these differences were not in a direction of interest. Testing Hypotheses Regarding Specific Exposures and Health Outcomes (Morbidity)
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From page 97... ...
No statistically significant differences were seen between the SHAD participant group and the comparison group under the alternative of odds ratio greater than 1.
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From page 98... ...
R 3.1.1 was used for Fisher's exact tests and construction of confidence intervals with a two-sided alternative. No statistically significant differences were seen between the SHAD participant group and the comparison group under the alternative of odds ratio greater than 1.
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From page 99... ...
Morbidity from Health Outcomes with a Hypothesized Association with Certain SHAD Test Exposures The committee also examined in both Medicare and VHA data diagnoses for the specific health outcomes that the committee concluded were suggested by the scientific literature to be a possible effect from certain exposures (see Table 3-1)
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From page 100... ...
In the group of SHAD veterans exposed to E coli, a few cases of irritable bowel syndrome were seen in Medicare records (too few to allow reporting of a specific
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From page 101... ...
No statistically significant differences were seen in these comparisons. TABLE 5-9 SHAD Participant and Comparison Groups with Specified Exposures and Diagnoses of Interest in Medicare Fee-for-Service Enrollees (1999-2011)
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From page 102... ...
Medicare records Number enrolled in Medicare 415 457 Percent of Medicare enrollees with 15% 13% diagnosis of interest Number with any diagnosis of interest in 42 43 0.82 (0.50-1.34) the VHA records Number with any diagnosis in VHA 289 289 Percent of VHA users with diagnosis of 15% 17% interest NOTES: CI = confidence interval; NR = not reported, cell size ≤10 could be back-calculated; VHA = Veterans Health Administration.
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From page 103... ...
2015. Chronic conditions data warehouse: Condition categories.
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