Spine
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Cross-sectional study. ⋯ Between-groups differences were observed as lower neck muscle endurance time, reduced left rotation, relatively reduced extension at second test, but greater range of retraction, when the subclinical and normal groups were compared. These data suggest that there are early range changes associated with the development of neck pain.
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Secondary analysis of the 1998 Medical Expenditure Panel Survey. ⋯ Health care expenditures for back pain in the United States in 1998 were substantial. The expenditures demonstrated wide variations among individuals with different clinical, demographic, and socioeconomic characteristics.