Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

402 questions · 411 findings · 41 reviews · Headline outcomes only

No studies found 99 · 24.1%GRADE not reported 32 · 7.8%Very low 132 · 32.1%Low 112 · 27.3%Moderate 33 · 8%High 3 · 0.7%

Probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

Clinical relapse · Patients with quiescent ulcerative colitis

It is very uncertain whether probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) changes clinical relapse (12 to 52 weeks) compared with 5‐ASA (mesalazine) (very low certainty).

1 finding from 1 review

Probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

Maintenance of clinical remission · Patients with quiescent ulcerative colitis

Probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) showed no clear difference in maintenance of clinical remission (24 to 52 weeks) compared with 5‐ASA (mesalazine) (low certainty).

1 finding from 1 review

Probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

Withdrawals due to adverse events · Patients with quiescent ulcerative colitis

It is very uncertain whether probiotic + 5‐aminosalicylic acid (5‐ASA) (mesalazine) changes withdrawal due to adverse events (12 to 52 weeks) compared with 5‐ASA (mesalazine) (very low certainty).

1 finding from 1 review

Intervention not reported

Incidence of AAD · Children receiving antibiotic treatment between 4 and 28 days duration for a variety of infections

The intervention probably leads to lower incidence of AAD (moderate certainty).

1 finding from 1 review

Intervention not reported

Adverse events · Children receiving antibiotic treatment between 4 and 28 days duration for a variety of infections

The intervention showed no clear difference in adverse events (low certainty).

1 finding from 1 review

Probiotics vs placebo

Proportion of children with AOM (overall) · children up to age 18 years

Probiotic probably leads to lower proportion of children with AOM (overall) compared with placebo (moderate certainty).

1 finding from 1 review

Probiotics vs placebo

Proportion of children with AOM: children not prone to AOM · children up to age 18 years

Probiotic probably leads to lower proportion of children with AOM: children not prone to AOM compared with placebo (moderate certainty).

1 finding from 1 review

Probiotics vs placebo

Proportion of children with AOM: children prone to AOM · children up to age 18 years

Probiotic showed no clear difference in proportion of children with AOM: children prone to AOM compared with placebo (high certainty).

1 finding from 1 review

Probiotics vs placebo

Difference in proportion of children with other infections · children up to age 18 years

Probiotic probably leads to lower difference in proportion of children with other infections compared with placebo (moderate certainty).

1 finding from 1 review

Intervention not reported

Primary outcome 1: participant‐ or parent‐rated symptoms of eczema (SCORAD part C) at the end of active treatment Visual analogue scale for itch and sleep disturbance ranging from 0 to 10 for each symptom and combined ranging from 0 to 20. The hig... · male and female patients 0 to 55 years of age with physician‐diagnosed eczema
1 finding from 1 review

Intervention not reported

Primary outcome 1: participant‐ or parent‐rated global change in eczema symptoms at the end of active treatment (binary outcome) Change in risk for worsened/unchanged eczema Duration of · male and female patients 0 to 55 years of age with physician‐diagnosed eczema

The intervention showed no clear difference in primary outcome 1: participant‐ or parent‐rated global change in… (low certainty).

1 finding from 1 review