Cochrane · systematic review · CD011972

Lifestyle changes for treating psoriasis

Ko, SH, Chi, CC, Yeh, ML, et al. · Cochrane Database of Systematic Reviews · 2019 · Cochrane Library

SkinAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
10
current version
GRADE rated
7
No studies
3
Included studies
NR
No studies 3 · 30%Ungraded 0 · 0%Very low 0 · 0%Low 2 · 20%Moderate 5 · 50%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Dietary intervention compared to usual care for treating psoriasis

Population: people with psoriasis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Severity of psoriasis PASI 75 (the proportion of participants achieving at least 75% improvement from baseline in the Psoriasis Area and Severity Index)
Dietary intervention vs usual care
RR 1.66 [1.07, 2.58]2 studies · 323 participantsLow
Downgraded: risk of bias, inconsistency
Adherence to the intervention
Dietary intervention vs usual care
RR 1.26 [0.76, 2.09]2 studies · 105 participantsLow
Downgraded: risk of bias, inconsistency
Quality of life Change in DLQI (scale from 0 to 30; lower DLQI scores represent improvement in quality of life)
Dietary intervention vs usual care
no estimate extracted1 study · 36 participantsModerate
Downgraded: risk of bias
Time to relapse Not measured
Dietary intervention vs usual care
no estimate extractedNRNo studies
Reduction in comorbidities Change in BMI (lower BMI is beneficial)
Dietary intervention vs usual care
no estimate extracted2 studies · 78 participantsModerate
Downgraded: risk of bias

Dietary intervention and exercise programme compared to information only for treating psoriasis

Population: people with psoriasis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Severity of psoriasis PASI 75 (the proportion of participants achieving at least 75% improvement from baseline in the Psoriasis Area and Severity Index)
Dietary intervention and exercise programme vs information only
RR 1.28 [0.83, 1.98]1 study · 303 participantsModerate
Downgraded: risk of bias
Adherence to the intervention
Dietary intervention and exercise programme vs information only
RR 0.95 [0.89, 1.01]1 study · 303 participantsModerate
Downgraded: risk of bias
Quality of life Not measured
Dietary intervention and exercise programme vs information only
no estimate extractedNRNo studies
Time to relapse Not measured
Dietary intervention and exercise programme vs information only
no estimate extractedNRNo studies
Reduction in comorbidities Change in BMI (lower BMI is beneficial)
Dietary intervention and exercise programme vs information only
no estimate extracted1 study · 303 participantsModerate
Downgraded: risk of bias