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. 2021 Oct 12;2021(10):CD011589. doi: 10.1002/14651858.CD011589.pub2

1. PROM feedback compared to usual care for improve processes and outcomes of care.

PROM feedback compared to usual care for improve processes and outcomes of care: additional analyses not included in Summary of Findings.  
Patient or population: Ambulatory adult patients.
Setting: Primary and secondary care settings in North America and Europe.
Intervention: PROM feedback reported to physicians or both patients and physicians.
Comparison: Usual care.
Outcomes Anticipated absolute effects* (95% CI) Relative effect
(95% CI) № of participants
(studies) Certainty of the evidence
(GRADE) Comments
Risk with usual care Risk with PROM feedback
Symptoms Dyspnoea  
SMD ‐0.11
(‐0.32 to 0.11) indicating no difference between PROM feedback and usual care 765
(5 randomised trials) ⊕⊝⊝⊝
Very low 1, 2, 3 We are uncertain about the effect of PROM feedback on dyspnoea.
Nausea  
SMD ‐0.08
(‐0.76 to 0.59) indicating no difference between PROM feedback and usual care 239
(2 randomised trials) ⊕⊝⊝⊝
Very low 1, 2, 3 We are very uncertain about the effect of PROM feedback on nausea.
Cough  
SMD ‐0.14
(‐0.75 to 0.48) indicating no difference between PROM feedback and usual care 122
(2 randomised trials) ⊕⊝⊝⊝
Very low 1, 2, 3 The evidence is very uncertain about the effect of PROM feedback on cough.
Depressive symptoms  
SMD ‐0.12
(‐0.19 to ‐0.05) indicating no difference between PROM feedback and usual care 3449
(16 randomised trials) ⊕⊕⊕⊝ Moderate 1 PROM feedback probably results in a slight reduction in depressive symptoms.
Anxiety symptoms  
SMD ‐0.17
(‐0.31 to ‐0.03) indicating no difference between PROM feedback and usual care 2334
(8 randomised trials) ⊕⊝⊝⊝
Very low 1, 4 We are very uncertain about the effect of PROM feedback on anxiety.
Clinician severity ratings SMD 0.36
(0.12 to 0.6) favouring PROM feedback vs usual care.  312
(3 randomised trials) ⊕⊝⊝⊝
Very low 1, 4 We are very uncertain about the effect of PROM feedback on clinician severity ratings.
Pharmacological treatment Study population RR 1.21
(0.91 to 1.59) 2528
(10 randomised trials) ⊕⊕⊕⊝
Moderate 3 The evidence suggests that PROM feedback probably makes little or no difference for pharmacological treatment.
 
Pharmacological treatment was assessed using chart review.
 
Two additional studies reported little or no difference between groups, a third study reported that those allocated to the intervention were more Liley to have their pharmacological treatment changed.
195 per 1,000 256 per 1,000
(171 to 365)
Hospital admissions Study population RR 0.96
(0.82 to 1.11) 1681
(4 randomised trials) ⊕⊕⊕⊝
Moderate 1 PROM feedback probably results in little to no difference in hospital admissions.
66 per 1,000 60 per 1,000
(45 to 79)
Visits Visits  
Study population RR 1.09 (0.92 to 1.30) 2777
(8 randomised trials) ⊕⊝⊝⊝
Very low 1, 2, 3 The evidence is very uncertain about the effect of PROM feedback on visits.
502 per 1,000 514 per 1,000
(410 to 619)
ER visits  
Study population RR 0.83
(0.68 to 1.01) 812
(3 randomised trials) ⊕⊕⊕⊝
Moderate 3 PROM feedback may reduce ER visits slightly.
434 per 1,000 359 per 1,000
(293 to 427)
Unscheduled visits  
Study population RR 1.43
(0.55 to 3.74) 333
(2 randomised trials) ⊕⊕⊝⊝
Low 2, 3 PROM feedback likely results in little to no difference in unscheduled visits.
401 per 1,000 551 per 1,000
(194 to 862)
Number of visits  
SMD 0.02
(‐0.17 to 0.21) indicating no difference between PROM feedback and usual care.  2505
(7 randomised trials) ⊕⊝⊝⊝
Very low 2, 4 The evidence is very uncertain about the effect of PROM feedback on number of visits.
Referral Study population RR 2.00
(1.58 to 2.54) 2519
(10 randomised trials) ⊕⊝⊝⊝
Very low 1, 4 The evidence is very uncertain about the effect of PROM feedback on referral.
 
66 per 1,000 148 per 1,000
(113 to 190)
Counselling (provided or referred to) Study population RR 1.61
(1.02 to 2.53) 815
(4 randomised trials) ⊕⊝⊝⊝
Very low 1, 4 The evidence is very uncertain about the effect of PROM feedback on counselling (provided or referred to).
246 per 1,000 396 per 1,000
(251 to 622)
Patient satisfaction SMD 0.12 SD higher
(0.12 lower to 0.36 higher) indicating no difference between PROM feedback and usual care.  2760
(10 randomised trials) ⊕⊝⊝⊝
Very low 3, 4 The evidence is very uncertain about the effect of PROM feedback on patient satisfaction (overall).
Patient perceptions Self efficacy  
SMD ‐0.05
(‐0.21 to 0.32) indicating no difference between PROM feedback and usual care.  349
(2 randomised trials) ⊕⊕⊕⊝
Moderate 2 PROM feedback likely results in little to no difference in self efficacy.
Unmet needs  
SMD ‐0.10
(‐0.22 to 0.02)  indicating no difference between PROM feedback and usual care. 1025
(3 randomised trials) ⊕⊕⊕⊝
Moderate 2 PROM feedback probably results in little to no difference in unmet needs.
Patient‐physician relationship  
SMD 0.12
(‐0.12 to 0.36) indicating no difference between PROM feedback and usual care. 282
(2 randomised trials) ⊕⊕⊝⊝
Low 1, 3 PROM feedback may result in little to no difference in patient‐physician relationship.
Quality of care SMD 1.47
(1.00  to 2.17) favouring PROM feedback vs usual care.  1403
(2 randomised trials) ⊕⊕⊝⊝
Low 1, 2 PROM feedback may increase the quality of care but the evidence is uncertain.
Length of stay SMD 0.18
(‐0.12 to 0.49) indicating no difference between PROM feedback and usual care. 174
(2 randomised trials) ⊕⊕⊝⊝
Low 1, 2 The evidence is very uncertain about the effect of PROM feedback on length of stay
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).

CI: Confidence interval; SMD: standardised mean difference; RR: Risk ratio; OR: Odds ratio;
GRADE Working Group grades of evidenceHigh certainty: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate certainty: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
Low certainty: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low certainty: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1 We downgraded one point for high risk of unblinding due to nature of intervention for most studies.

2 We downgraded one point for imprecision due to the small number of studies with wide confidence intervals included in meta‐analysis.

3 We downgraded one point for inconsistency due to high heterogeneity.

4 We downgraded two points for inconsistency due to very high heterogeneity.