C-reactive protein point of care testing and physician communication skills training for lower respiratory tract infections in general practice: economic evaluation of a cluster randomized trial.
An economic evaluation of general practitioner (GP) use of C-reactive protein (CRP) point of care test, GP communication skills training, and both GP use of CRP and communication skills training on antibiotic use for lower respiratory tract infections (LRTIs) in general practice.
Cost-effectiveness analysis with a time horizon of 28 days alongside a factorial, cluster randomized trial in 431 patients with LRTIs recruited by 40 GPs.
usual care (control group), GP use of CRP point of care test, GP communication skills training, and both CRP use and communication skills training.
health care costs. Cost-effectiveness, using the primary outcome measure antibiotic prescribing at index consultation, was assessed by incremental cost-effectiveness ratios (ICER). To adjust for skewed data and clustering, we used non-parametric bootstrapping re-sampling to derive percentile intervals for the mean difference in total costs and the mean difference in effectiveness between the groups. Various implementation scenarios according to GP preference were modelled with corresponding net monetary benefit (NMB) curves based on a given willingness-to-pay (λ) for a 1% lower antibiotic prescribing rate.
The total mean cost per patient in the usual care group was €35.96 with antibiotic prescribing of 68%, €37.58 per patient managed by GPs using CRP tests (antibiotic prescribing 39%, ICER €5.79), €25.61 per patient managed by GPs trained in enhanced communication skills (antibiotic prescribing 33%, dominant) and €37.78 per patient managed by GPs using both interventions (antibiotic prescribing 23%, ICER €4.15). The interventions are cost-effective in any combination (yielding NMB at no willingness-to-pay), taking into account GPs' preferences where at least 15% of GPs chose to implement the communication skills training.
The two strategies, both singly and combined, are cost-effective interventions to reduce antibiotic prescribing for LRTI, at no, or low willingness-to-pay. Taking GP preferences into account will optimize investment in strategies to reduce antibiotic prescribing for LRTI.
Cals JW
，Ament AJ
，Hood K
，Butler CC
，Hopstaken RM
，Wassink GF
，Dinant GJ
... -
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Antibiotic Prescribing for Acute Respiratory Tract Infections 12 Months After Communication and CRP Training: A Randomized Trial.
C-reactive-protein (CRP) is useful for diagnosis of lower respiratory tract infections (RTIs). A large international trial documented that Internet-based training in CRP point-of-care testing, in enhanced communication skills, or both reduced antibiotic prescribing at 3 months, with risk ratios (RRs) of 0.68, 0.53, 0.38, respectively. We report the longer-term impact in this trial.
A total of 246 general practices in 6 countries were cluster-randomized to usual care, Internet-based training on CRP point-of-care testing, Internet-based training on enhanced communication skills and interactive booklet, or both interventions combined. The main outcome was antibiotic prescribing for RTIs after 12 months.
Of 228 practices providing 3-month data, 74% provided 12-month data, with no demonstrable attrition bias. Between 3 months and 12 months, prescribing for RTIs decreased with usual care (from 58% to 51%), but increased with CRP training (from 35% to 43%) and with both interventions combined (from 32% to 45%); at 12 months, the adjusted RRs compared with usual care were 0.75 (95% CI, 0.51-1.00) and 0.70 (95% CI, 0.49-0.93), respectively. Between 3 months and 12 months, the reduction in prescribing with communication training was maintained (41% and 40%, with an RR at 12 months of 0.70 [95% CI, 0.49-0.94]). Although materials were provided for free, clinicians seldom used booklets and rarely used CRP point-of-care testing. Communication training, but not CRP training, remained efficacious for reducing prescribing for lower RTIs (RR = 0.7195% CI, 0.45-0.99, and RR = 0.76; 95% CI, 0.47-1.06, respectively), whereas both remained efficacious for reducing prescribing for upper RTIs (RR = 0.60; 95% CI, 0.37-0.94, and RR = 0.58; 95% CI, 0.36-0.92, respectively).
Internet-based training in enhanced communication skills remains effective in the longer term for reducing antibiotic prescribing. The early improvement seen with CRP training wanes, and this training becomes ineffective for lower RTIs, the only current indication for using CRP testing.
Little P
，Stuart B
，Francis N
，Douglas E
，Tonkin-Crine S
，Anthierens S
，Cals JWL
，Melbye H
，Santer M
，Moore M
，Coenen S
，Butler CC
，Hood K
，Kelson M
，Godycki-Cwirko M
，Mierzecki A
，Torres A
，Llor C
，Davies M
，Mullee M
，O'Reilly G
，van der Velden A
，Geraghty AWA
，Goossens H
，Verheij T
，Yardley L
，GRACE consortium
... -
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Effects of internet-based training on antibiotic prescribing rates for acute respiratory-tract infections: a multinational, cluster, randomised, factorial, controlled trial.
High-volume prescribing of antibiotics in primary care is a major driver of antibiotic resistance. Education of physicians and patients can lower prescribing levels, but it frequently relies on highly trained staff. We assessed whether internet-based training methods could alter prescribing practices in multiple health-care systems.
After a baseline audit in October to December, 2010, primary-care practices in six European countries were cluster randomised to usual care, training in the use of a C-reactive protein (CRP) test at point of care, in enhanced communication skills, or in both CRP and enhanced communication. Patients were recruited from February to May, 2011. This trial is registered, number ISRCTN99871214.
The baseline audit, done in 259 practices, provided data for 6771 patients with lower-respiratory-tract infections (3742 [55·3%]) and upper-respiratory-tract infections (1416 [20·9%]), of whom 5355 (79·1%) were prescribed antibiotics. After randomisation, 246 practices were included and 4264 patients were recruited. The antibiotic prescribing rate was lower with CRP training than without (33% vs 48%, adjusted risk ratio 0·54, 95% CI 0·42-0·69) and with enhanced-communication training than without (36% vs 45%, 0·69, 0·54-0·87). The combined intervention was associated with the greatest reduction in prescribing rate (CRP risk ratio 0·53, 95% CI 0·36-0·74, p<0·0001; enhanced communication 0·68, 0·50-0·89, p=0·003; combined 0·38, 0·25-0·55, p<0·0001).
Internet training achieved important reductions in antibiotic prescribing for respiratory-tract infections across language and cultural boundaries.
European Commission Framework Programme 6, National Institute for Health Research, Research Foundation Flanders.
Little P
，Stuart B
，Francis N
，Douglas E
，Tonkin-Crine S
，Anthierens S
，Cals JW
，Melbye H
，Santer M
，Moore M
，Coenen S
，Butler C
，Hood K
，Kelly M
，Godycki-Cwirko M
，Mierzecki A
，Torres A
，Llor C
，Davies M
，Mullee M
，O'Reilly G
，van der Velden A
，Geraghty AW
，Goossens H
，Verheij T
，Yardley L
，GRACE consortium
... -
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