Latitude gradient influences the age of onset in rheumatoid arthritis patients.

The mean age of rheumatoid arthritis (RA) onset is around 50 years as reported in several clinical trials involving Caucasian patients. However, clinical observations suggest that Mexican RA patients' disease is initiated at a younger age. The objective of the study was to assess whether the age of onset of RA is different in Mexican and in Canadian RA patients.

Patients' awareness, utilization, and satisfaction with treatment modalities for the management of their osteoarthritis.

The objective of this study was to evaluate the knowledge, awareness, utilization, and satisfaction of patients with different treatment modalities for osteoarthritis (OA). Patients with a diagnosis of OA of the knee or hip who had attended a rheumatology referral clinic over the preceding 2 years were eligible. A six-page self-administered questionnaire was mailed to them.

A six-month randomized, controlled, double-blind, dose-response comparison of intravenous pamidronate (60 mg versus 10 mg) in the treatment of nonsteroidal antiinflammatory drug-refractory ankylosing spondylitis.

Objective: To determine the safety and efficacy of intravenous (IV) pamidronate treatment in ankylosing spondylitis (AS) patients who have had a suboptimal response to nonsteroidal antiinflammatory drugs (NSAIDs).

Methods: Pamidronate at 60 mg was compared with pamidronate at 10 mg rather than placebo in view of the high incidence of transient arthralgias upon first IV exposure to the drug. The drug were given monthly for 6 months in a randomized double-blind, controlled trial.

Lack of congruence in the ratings of patients' health status by patients and their physicians.

Purpose: The purpose of this study was to examine if physician assessments of their patients' health status after the medical encounter are comparable to their patients' self-assessment of their own health.

Methods: Consecutive patients with musculoskeletal diseases were recruited when they attended 1 of the rheumatology outpatient clinics selected for the study. Five physicians participated in the study, 4 based at an academic center and 1 in the community.

Decreased dromotropic response to verapamil despite pronounced increased drug concentration in rheumatoid arthritis.

Aims: Inflammation reduces hepatic clearance of many drugs with unknown therapeutic consequences. This study was carried out to examine the effect of rheumatoid arthritis (RA) on the pharmacokinetics and pharmacodynamics of verapamil.

Methods: Eight RA patients were age- and sex-matched with eight healthy volunteers.