Table 5.

Patient, tumor and surgeon contributions to variation in compliance with established measures

Partitioning of Variance	≥8 Cystoscopy	≥8 Cytology	≥2 Imaging	≥1 Perioperative Mitomycin C	≥6 Postoperative BCG
Surgeon-Attributable Variance (null model)	26.6%	58.3%	12.2%	47.7%	26.2%
Unexplained Surgeon Variance (full model)	25.1%	59.3%	9.9%	45.4%	26.3%
Patient Sociodemographic Characteristics	2.5%	3.6%	1.0%	4.1%	2.5%
Severity of Illness	4.5%	0.3%	0.6%	1.5%	2.9%
Provider Characteristics	2.9%	5.4%	1.8%	4.7%	2.1%
Year of Diagnosis	3.5%	0.6%	0.3%	2.8%	3.1%