TABLE 4.1 Major Cohort Studies (Shaded) and Derivative Studies

Reference

Eligible population

Type of study or methods

Date(s) of enrollment

Subgroup (n = eligible subjects)

Contacted or Located (% of eligible)

Responded or Enrolled (Response Rate)

Comments

Iowa Persian Gulf Study Group 1997

Iowa listed as home of record on initial military record, and service in regular military or activated National Guard/Reserve sometime from 8/2/1990-7/31/1991, identified by Defense Manpower Data Center, Monterey CA, DOD (n = 28,968)

Population based interview study Stratum random sample with proportional allocation—64 strata (GW, type of military, age, sex, race, rank, branch), Pilot study not eligible

9/1995-5/1996

Total 4,886

4,072 (83.3%)

3,695 (90.7%; 75.6% of eligible)

Limited assessment of selection bias

Derivatives from Iowa Persian Gulf Study Group 1997

Reference

Purpose

Study design

Population

Comments

(where appropriate)

Eligible

Located

Enrolled (Response Rate)

Black et al. 1999

Quality of life and health-services utilization among those with MCS

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997: n = 3,695

 

Black et al. 2000

Prevalence of MCS syndrome

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997: n = 3,695

 

Doebbeling et al. 2000

Definition of Persian Gulf War Syndrome

Factor analysis

Population described in Iowa Persian Gulf Study Group 1997: n = 3,695

 

Zwerling et al. 2000

Prevalence of self-reported postwar injuries

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997: n = 3,695

 

Barrett et al. 2002

Association between PTSD and self-reported physical health status

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997 excluding 13 with missing information

Total: n = 3,682

GWVs: n = 1,889

NDVs: n = 1,793

 

Black et al. 2004b

Prevalence and risk factors for anxiety

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997: n = 3,695

 

Lange et al. 2002

Exposures to Kuwait oil fires and asthma and bronchitis

Cross-sectional survey

Population described in Iowa Persian Gulf Study Group 1997 excluding 336 with unknown exposure information: n = 1,560

 



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