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

Boxing Studies: Porter et al., 1996, 2003

Porter and Fricker, 1996

Male boxers in amateur boxing clubs in Ireland 16–25 years old; subjects had to complete minimum of 40 bouts

Prospective, observational

1991–1992

53

53

20 selected randomly (38%)

Many lost because of strict exclusion criteria; study of boxing, not brain injury; flawed comparison group in that controls also had concussion; differentiation in rate of concussion in cases, controls

 

 

 

 

 

 

 

Exclusion criteria: excess alcohol consumption (> 20 standard drinks/week or > 4 drinks/day)

Reference

Purpose

Study Design

Population (Where Appropriate)

Comments

Eligible

Located

Enrolled (Response Rate)

Porter, 2003

Neuropsychologic impairment

Prospective, observational

20 male boxers from amateur boxing clubs in Ireland 16–25 years old; subjects had to complete a minimum of 40 bouts

See comments above

 

 

 

1 case and 2 controls lost to followup

 

NOTE: ALS = amyotrophic lateral sclerosis, CHSA = Canadian Study of Health and Aging, CT = computed tomography, DSM-IV = Diagnostic and Statistical Manual of Mental Disorders, 4th ed., ED = emergency department, GCS = Glasgow Coma Scale, GSW = gunshot wound, ICD-10 = International Statistical Classification of Diseases and Health Related Problems, 10th revision, LLI = lower-limb injury, LOC = loss of consciousness, MA = Massachusetts, MN = Minnesota, MS = multiple sclerosis, MTBI = mild traumatic brain injury, MVA = motor vehicle accident, PCS = postconcussion syndrome, PD = Parkinson disease, PPCSC = predictors of postconcussion symptom complex, PTA = posttraumatic amnesia, PTSD = posttraumatic stress disorder, TBI = traumatic brain injury, TCDB = Traumatic Coma Databank, UK = United Kingdom, US = United States, VA = Veterans Affairs, VHIS = Vietnam Head Injury Study, WA = Washington.



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