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. 2022 Jan 13;22:4. doi: 10.1186/s12894-022-00952-6

Table 2.

Descriptive statistics of patients' data

Minimum Maximum Mean SD
Age (y.o.) 27 73 52.93 11.564
Preoperative BUN (mmol/L) 3.90 12.90 9.2357 2.28065
Preoperative Cr (umol/L) 54.50 339.50 175.7619 82.80711
Indwelling time of drainage tube (month) 6 9 6.64 1.246
Hematuria disappearance time (day) 1 4 1.86 .872
BUN before tube removal (mmol/L) 3.80 9.10 6.2774 1.36499
Cr before tube removal (umol/L) 45.20 189.60 84.3786 27.25897
Follow-up time (month) 12 60 42.57 16.805
Narrow length (cm) .20 2.10 1.0738 .53468