Figure 4

Cumulative incidence of UTUC recurrence stratified by urinary pH levels in patients who had a smoking history and (A) larger smoking intensity (≥ 20 cigarettes per day) or (B) smaller smoking intensity (< 20 cigarettes per day).

Cumulative incidence of UTUC recurrence stratified by urinary pH levels in patients who had a smoking history and (A) larger smoking intensity (≥ 20 cigarettes per day) or (B) smaller smoking intensity (< 20 cigarettes per day).