TABLE 4.

Risk factors of progression

Parameters	Adjusted* OR	95% CI	P‐value
The highest grade (Ref: Low)
High	2.087	0.642‐6.787	.222
Number of recurrences	1.255	1.031‐1.529	.024
Cystoscopy delay time (Ref: <40 days)
40‐90 days	2.689	0.724‐9.986	.140
>90 days	6.704	1.973‐22.780	.002

Abbreviations: Ref: reference; TUR: transurethral resection.

^*Adjusted for age, sex and Charlson Comorbidity Index.