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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,434 questions in 139 reviews · Kidney and Transplant

current versions
No studies 504 · 20.7%Ungraded 40 · 1.6%Very low 611 · 25.1%Low 790 · 32.5%Moderate 414 · 17%High 75 · 3.1%

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.

QuestionEffectEvidenceStatus / GRADE
Probiotics vs placebo
Death · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs prebiotics
GI function · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs prebiotics
Graft health: acute liver rejection · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
RR 0.73 [0.43, 1.25]2 studies · 129 participantsVery low
Synbiotics vs prebiotics
Graft health · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs prebiotics
Adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
RR 0.79 [0.4, 1.59]2 studies · 129 participantsVery low
Synbiotics vs prebiotics
Serious adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
RR 1.49 [0.42, 5.36]2 studies · 129 participantsVery low
Synbiotics vs prebiotics
Death · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extracted2 studies · 129 participantsVery low
Synbiotics vs placebo
Graft health · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Adverse events · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Serious adverse events · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Death · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
GI function · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Graft health · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Serious adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Death at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.73 [0.34, 1.59]16 studies · 944 participantsModerate
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Death at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.76 [0.25, 2.3]7 studies · 440 participantsLow
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
End‐stage kidney disease at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.42 [0.24, 0.74]9 studies · 537 participantsModerate
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Total remission (complete or partial) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.37 [1.04, 1.82]9 studies · 468 participantsModerate
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Complete remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 2.12 [1.33, 3.38]8 studies · 432 participantsModerate
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Recurrence of disease (relapse) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.8 [0.4, 1.61]3 studies · 161 participantsVery low
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
100% increase in serum creatinine at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.59 [0.3, 1.16]7 studies · 332 participantsModerate
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Adverse events ‐ temporary/permanent discontinuation or hospitalisation at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.443 studies · 184 participantsLow
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Adverse events ‐ infection at 3 years · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.68 [0.3, 9.45]1 study · 70 participantsVery low
Oral alkylating agents ± steroids vs placebo/no treatment/steroids
Adverse events ‐ malignancy at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.63 [0.21, 12.37]2 studies · 199 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Death at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.69 [0.46, 6.14]7 studies · 296 participantsVery low
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
End‐stage kidney disease at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.59 [0.35, 0.99]16 studies · 944 participantsModerate
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
End‐stage kidney disease at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.18 [0.54, 2.6]7 studies · 296 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Total remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.21 [0.62, 2.38]5 studies · 206 participantsLow
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Complete remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.07 [0.51, 2.24]5 studies · 206 participantsLow
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Recurrence of disease (relapse) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.56 [0.79, 3.09]2 studies · 92 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
100% increase in SCr at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.84 [0.37, 1.86]2 studies · 117 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Adverse events ‐ temporary or permanent discontinuation/hospitalisation at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 5.45 [0.29, 101.55]5 studies · 156 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Adverse events ‐ infection at 36 months · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 4.11 [0.94, 18.06]1 study · 73 participantsVery low
Calcineurin inhibitors ± steroids vs placebo/no treatment/supportive treatment/steroids
Adverse events ‐ malignancy at 36 months · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 2.79 [0.14, 56.57]1 study · 107 participantsVery low
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Death at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.9 [0.35, 2.34]7 studies · 394 participantsVery low
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
End‐stage kidney disease at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 2.4 [0.64, 9.01]5 studies · 293 participantsVery low
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Total remission (complete or partial) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.44 [1.05, 1.97]16 studies · 879 participantsModerate
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Total remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.01 [0.89, 1.15]10 studies · 529 participantsModerate
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Complete remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.15 [0.84, 1.56]10 studies · 533 participantsLow
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Recurrence of disease (relapse) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 2.13 [0.71, 6.37]6 studies · 295 participantsLow
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
100% increase in SCr at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.7 [0.3, 1.67]2 studies · 132 participantsVery low
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Adverse events ‐ temporary or permanent discontinuation/hospitalisation at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.43 [0.31, 6.67]3 studies · 151 participantsVery low
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Adverse events ‐ infection ( · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.86 [0.43, 1.71]9 studies · 552 participantsLow
Calcineurin inhibitors ± steroids vs alkylating agents ± steroids
Adverse events ‐ malignancy (range 30 to 36 months · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.18 [0.01, 3.69]2 studies · 127 participantsVery low
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Complete remission at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.7 [1.05, 2.75]16 studies · 879 participantsModerate
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Recurrence of disease (relapse) at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 1.73 [1.05, 2.86]3 studies · 310 participantsLow
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
100% increase in serum creatinine at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 0.46 [0.26, 0.8]8 studies · 447 participantsModerate
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Adverse events: temporary/permanent discontinuation or hospitalisation at final · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 5.33 [2.19, 12.98]16 studies · 927 participantsModerate
Immunosuppressive treatment vs placebo/no treatment/non‐immunosuppressive supportive treatment
Adverse events: infection at 3 years · primary membranous nephropathy in adults with nephrotic syndrome
Immunosuppressive treatment for primary membranous nephropathy in adults with nephrotic syndrome (2021) · Cochrane
RR 2.95 [0.69, 12.61]1 study · 106 participantsVery low