Do OA patients gain additional benefit from care from a clinical nurse specialist?—a randomized clinical trial

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Abstract

Objectives

To assess whether OA patients attending a clinical nurse specialist (CNS) clinic gain ‘additional benefit’ compared with those attending a traditional junior hospital doctor (JHD) clinic.

Methods

A total of 100 patients with OA attending rheumatology clinics at a UK teaching hospital were randomly allocated to a CNS or JHD clinic and seen at 0, 16, 32 and 48 weeks. The study assessed (i) non-inferiority of the CNS with respect to clinical outcomes (pain, morning stiffness, self-efficacy, physical function and psychological status) and (ii) superiority of the CNS in terms of patient knowledge and satisfaction.

Results

Average pain at follow-up was lower in the CNS group: unadjusted mean difference for the JHD group minus the CNS group was 5.3 (95% CI –4.6, 15.2); adjusted was 1.6 (95% CI –5.7, 8.9). The corresponding effect size estimates were 0.20 (95% CI –0.17, 0.57) and 0.06 (95% CI –0.21, 0.33), respectively. There were similar outcomes in morning stiffness, physical function and self-efficacy. Patient knowledge and satisfaction were statistically significant at the 5% level attaining moderate to large effect sizes in favour of the CNS.

Conclusions

Our findings demonstrate that the clinical outcome of CNS care is not inferior to that of JHD care, and patients attending CNS gain additional benefit in that they are better informed about their disease and significantly more satisfied with care than are their counterparts.

Trial registration

ISRCTN 65487167.

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