CONCLUSIONS There was a consistent positive association among studies that have examined the association between MVC-related neck injury and future NP .
OBJECTIVE To summarize the literature that has examined the association between a motor vehicle collision ( MVC ) related neck injury and future neck pain ( NP )  in comparison with the population that has not been exposed to neck injury from an MVC .
LITERATURE SURVEY Neck injury result ing from an MVC is associated with a high rate of chronicity .
Prognosis studies indicate 50 % of injured people continue to experience NP a year after the collision .
This is difficult to interpret due to the high prevalence of NP in the general population .
Chronic neck pain and whiplash: a case-control study of the relationship between acute whiplash injuries and chronic neck pain.
The authors undertook a case-control study of chronic neck pain and whiplash injuries in nine states in the United States to determine whether whiplash injuries contributed significantly to the population of individuals with chronic neck and other spine pain . Four hundred nineteen patients and 246 controls were r and omly enrolled . Patients were defined as individuals with chronic neck pain , and controls as those with chronic back pain . The two groups were surveyed for cause of chronic pain as well as demographic information . The two groups were compared using an exposure-odds ratio . Forty-five per cent of the patients attributed their pain to a motor vehicle accident . An OR of 4.0 and 2.1 was calculated for men and women , respectively . Based on the results of the present study , it reasonable to infer that a significant proportion of individuals with chronic neck pain in the general population were originally injured in a motor vehicle accident
CONCLUSIONS There was a consistent positive association among studies that have examined the association between MVC-related neck injury and future NP .
OBJECTIVE To summarize the literature that has examined the association between a motor vehicle collision ( MVC ) related neck injury and future neck pain ( NP )  in comparison with the population that has not been exposed to neck injury from an MVC .
LITERATURE SURVEY Neck injury result ing from an MVC is associated with a high rate of chronicity .
Prognosis studies indicate 50 % of injured people continue to experience NP a year after the collision .
This is difficult to interpret due to the high prevalence of NP in the general population .