Cross-sectional studies, 110

D

Dementia of the Alzheimer type, 237242

primary study, 237238

secondary studies, 238240

Dementia pugilistica (DP), 243246

secondary studies, 244245

summary and conclusions, 245246

Diabetes insipidus, 231.

See also Endocrine disorders

Diffuse traumatic brain injury, 2627, 41

Diffusion-tensor imaging (DTI), 2122

Dilantin Prophylaxis of Post-Traumatic Seizures, 134136

Dizziness, 218.

See also Postconcussion symptoms

Dose-response relationships, in inferring causality, 107108

Drug and alcohol abuse disorders, 291

secondary studies, 291

summary and conclusions, 293

Dynamic loading, 2728

E

E.A. Walker's studies of head-injured veterans

from World War I, 119, 143

from World War II, 119121, 144145

Endocrine disorders, 227236

diabetes insipidus, 231

growth hormone insufficiency, 231232

hypopituitarism, 231

primary studies, 227230

secondary studies, 230231

summary and conclusions, 231232

Epidemiologic studies, 105

Epidemiology of adult traumatic brain injury, 59102

brain injury severity, 6364

gross severity of traumatic brain injury, 5960

incidence of traumatic brain injury, 6163

outcome scores and predictors, 60

recurrent traumatic brain injury, 6768

risk factors for traumatic brain injury, 6467

scales and scoring systems used to describe traumatic brain injury, 59

summary, 69

traumatic brain injury and short-term outcomes, 6869



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