Primary study · included by 2 reviews

Feng 2021

ProbableThe reviews cited this study without a PMID, DOI or NCT, so it is matched by first author and year. Two different studies by the same author in the same year could be merged here.

Included by

Bladder cancer risk factors: a comprehensive umbrella review of meta-analyses.

Non-Cochrane · aetiology · 2026 · cited as Feng 2021 · Table 1 (Included MA); References

Outcome this study informs	Pooled effect	Evidence	Certainty
Risk of bladder cancer With lupus erythematosus vs Without lupus erythematosus	RR 1.66 [1.07, 2.59]	12 studies · 2806175 participants	Very low
Risk of bladder cancer Breast cancer diagnosed at age 50 or over vs Women without breast cancer (general population)	RR 1.08 [0.89, 1.30]	4 studies	Very low
Risk of bladder cancer With overall atopy vs Without overall atopy	RR 1.31 [1.10, 1.56]	10 studies · 2335074 participants	Very low
Risk of bladder cancer With asthma vs Without asthma	RR 1.46 [1.18, 1.80]	7 studies · 2171549 participants	Very low
Risk of bladder cancer With rhinitis vs Without rhinitis	RR 1.03 [0.74, 1.44]	4 studies · 1177243 participants	Very low

Clinical stem cell therapy in oral and craniofacial bone regeneration: a systematic review and meta-analysis.

Non-Cochrane · intervention · 2026 · cited as Feng 2021 · Table 2

The review does not say which of its outcomes this study informs.

2 including reviews in total.