A comparison of low back pain patients in the United States and New Zealand: psychosocial and economic factors affecting severity of disability.

One hundred and ninety-eight patients suffering from chronic low back pain seen at the University of Virginia (U.S.) Pain Center and 117 similar patients seen at the Auckland Hospital, Auckland, New Zealand (N.

A comparison of health locus of control beliefs in low-back patients from the U.S. and New Zealand.

In order to study differences in health control attitudes between chronic low-back patients from the U.S. and New Zealand, the Health Locus of Control (HLC) was administered to 284 consecutive admissions to pain clinics in those countries: 96 patients seen at the Auckland (New Zealand) Pain Clinic and 188 seen at the University of Virginia (U.

Stability of self-report measures of improvement in chronic pain: a five-year follow-up.

Seventy patients with chronic low-back pain not due to malignancy returned a questionnaire assessing functional status 5 years following treatment with epidural or subarachnoid nerve blocks. One hundred fifty-one patients had been surveyed 3 years earlier in an initial follow-up. The respondents to the present survey were older and more able to bend and took more medication for pain than non-respondents.