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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)

1,000 questions in 69 reviews · Urology

current versions
No studies 196 · 19.6%Ungraded 33 · 3.3%Very low 198 · 19.8%Low 354 · 35.4%Moderate 206 · 20.6%High 13 · 1.3%

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
Transurethral microwave thermotherapy vs transurethral resection of the prostate
Ejaculatory function (sexually‐active men only) · men with lower urinary tract symptoms due to benign prostatic hyperplasia
Transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign… (2021) · Cochrane
RR 0.36 [0.24, 0.53]4 studies · 241 participantsLow
Transurethral microwave thermotherapy vs sham treatment
Urologic symptom scores · men with lower urinary tract symptoms due to benign prostatic hyperplasia
Transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign… (2021) · Cochrane
no estimate extracted4 studies · 483 participantsModerate
Transurethral microwave thermotherapy vs sham treatment
Quality of life · men with lower urinary tract symptoms due to benign prostatic hyperplasia
Transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign… (2021) · Cochrane
no estimate extracted2 studies · 347 participantsLow
Transurethral microwave thermotherapy vs sham treatment
Major adverse events · men with lower urinary tract symptoms due to benign prostatic hyperplasia
Transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign… (2021) · Cochrane
no estimate extracted8 studies · 924 participantsVery low
Gemcitabine vs saline
Time to recurrence (absolute effect size estimates based on recurrence rate at 4 years) · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.77 [0.54, 1.09]2 studies · 734 participantsLow
Gemcitabine vs mitomycin
Grade III–V adverse events (local adverse events which result in delay intravesical treatment were regarded as Grade III–V complications) · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 0.51 [0.13, 1.93]1 study · 109 participantsVery low
Gemcitabine vs mitomycin
Time to death from bladder cancer · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs mitomycin
Time to death from any cause · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs mitomycin
Grade I or II adverse events (local adverse events which did not result in delay intravesical treatment) · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 0.53 [0.37, 0.78]1 study · 109 participantsLow
Gemcitabine vs mitomycin
Disease‐specific quality of life · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs BCG
Time to recurrence · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.15 [0.09, 0.26]1 study · 80 participantsLow
Gemcitabine vs BCG
Time to progression · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.45 [0.27, 0.76]1 study · 80 participantsLow
Gemcitabine vs BCG
Grade III–V adverse events · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 1 [0.21, 4.66]1 study · 80 participantsVery low
Gemcitabine vs BCG
Time to death from bladder cancer · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.04 [0.01, 2.25]1 study · 80 participantsVery low
Gemcitabine vs BCG
Time to death from any cause · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs saline
Time to progression (absolute effect size estimates based on progression rate at 4 years) · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.96 [0.19, 4.71]2 studies · 654 participantsLow
Gemcitabine vs BCG
Grade I or II adverse events · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 0.92 [0.48, 1.77]1 study · 80 participantsVery low
Gemcitabine vs BCG
Disease‐specific quality of life · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31…
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs saline
Grade III–V adverse events · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 1.26 [0.58, 2.75]2 studies · 668 participantsLow
Gemcitabine vs saline
Time to death from bladder cancer(absolute effect size estimates based on death rate at 2 years) · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.98 [0.02, 49.4]1 study · 328 participantsVery low
Gemcitabine vs saline
Time to death from any cause (absolute effect size estimates based on death rate at 4 years) · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.62 [0.39, 1]2 studies · 734 participantsVery low
Gemcitabine vs saline
Grade I or II adverse events · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
RR 1.13 [0.87, 1.45]2 studies · 668 participantsLow
Gemcitabine vs saline
Disease‐specific quality of life · participants with non‐muscle invasive bladder cancer (607 men, 127 women)Country: Germany, Turkey, and the US
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs mitomycin
Time to recurrence · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.36 [0.19, 0.69]1 study · 109 participantsLow
Gemcitabine vs mitomycin
Time to progression · participants with non‐muscle invasive bladder cancer1 (93 men, 16 women)Country: Italy
Intravesical gemcitabine for non‐muscle invasive bladder cancer (2021) · Cochrane
HR 0.57 [0.32, 1.01]1 study · 109 participantsLow
Circumcision devices vs standard surgical techniques
Serious adverse events · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
no estimate extracted11 studies · 3472 participantsModerate
Circumcision devices vs standard surgical techniques
Moderate adverse events · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
RR 1.31 [0.55, 3.1]10 studies · 3370 participantsLow
Circumcision devices vs standard surgical techniques
Mild adverse events · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
RR 1.09 [0.44, 2.72]10 studies · 3370 participantsVery low
Circumcision devices vs standard surgical techniques
Operative time (minutes) · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
no estimate extracted14 studies · 4812 participantsModerate
Circumcision devices vs standard surgical techniques
Pain during the first 24 hours (VAS means) · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
no estimate extracted9 studies · 3022 participantsLow
Circumcision devices vs standard surgical techniques
Pain during the first 7 days (VAS means) · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
no estimate extracted4 studies · 1430 participantsLow
Circumcision devices vs standard surgical techniques
Participant satisfaction · adolescent and adult male circumcisions
Circumcision devices versus standard surgical techniques in adolescent and adult male circumcisions (2021) · Cochrane
RR 1.19 [1.04, 1.37]15 studies · 4501 participantsLow
Combination therapy vs placebo
Urologic symptom scores · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted4 studies · 1792 participantsLow
Combination therapy vs alpha‐blockers
Surgical intervention · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 1.72 [0.34, 8.63]4 studies · 454 participantsVery low
Combination therapy vs anticholinergics
Urologic symptom scores · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted2 studies · 710 participantsVery low
Combination therapy vs anticholinergics
QoL · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted1 study · 56 participantsLow
Combination therapy vs anticholinergics
Adverse events · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 1.26 [0.81, 1.95]1 study · 661 participantsModerate
Combination therapy vs anticholinergics
AUR · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 0.55 [0.11, 2.65]3 studies · 1178 participantsLow
Combination therapy vs anticholinergics
Surgical intervention – not reported · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extractedNRNo studies
Combination therapy vs placebo
QoL · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted2 studies · 991 participantsVery low
Combination therapy vs placebo
Adverse events · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 1.24 [1.04, 1.47]3 studies · 1848 participantsModerate
Combination therapy vs placebo
AUR · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 1.94 [0.41, 9.08]5 studies · 2369 participantsVery low
Combination therapy vs placebo
Surgical intervention – not reported · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extractedNRNo studies
Combination therapy vs alpha‐blockers
Urologic symptom scores · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted19 studies · 3631 participantsVery low
Combination therapy vs alpha‐blockers
QoL · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
no estimate extracted15 studies · 2687 participantsVery low
Combination therapy vs alpha‐blockers
Adverse events · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 1.1 [0.9, 1.34]12 studies · 3561 participantsLow
Combination therapy vs alpha‐blockers
AUR · men with lower urinary tract symptoms related to benign prostatic obstruction
Anticholinergics combined with alpha‐blockers for treating lower urinary tract symptoms related to benign… (2021) · Cochrane
RR 2.03 [0.97, 4.23]19 studies · 4669 participantsLow
Degarelix vs standard androgen suppression therapy
Overall survival · hormone‐sensitive prostate cancer
Degarelix for treating advanced hormone‐sensitive prostate cancer (2021) · Cochrane
no estimate extractedNRNo studies
Degarelix vs standard androgen suppression therapy
Serious adverse events · hormone‐sensitive prostate cancer
Degarelix for treating advanced hormone‐sensitive prostate cancer (2021) · Cochrane
RR 0.8 [0.62, 1.05]9 studies · 2750 participantsLow
Degarelix vs standard androgen suppression therapy
Quality of life · hormone‐sensitive prostate cancer
Degarelix for treating advanced hormone‐sensitive prostate cancer (2021) · Cochrane
no estimate extracted3 studies · 2887 participantsModerate