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Table 1 Patient characteristics

From: The Paris System for reporting urinary cytology improves the negative predictive value of high-grade urothelial carcinoma

Variables   CS (n = 560) TPS (n = 89) P values*
Mean age Years (range) 73.1 (31–100) 73.5 (26–93) 0.39
Sex
 Male No. (%) 487 (87.0) 77 (86.5) 0.91
 Female No. (%) 73 (13.0) 12 (13.5)
Prior recurrence status
 Primary No. (%) 339 (60.5) 68 (76.4) < 0.01
 Recurrent No. (%) 221 (39.5) 21 (23.6)
Prior TUR within 90 days
 Yes No. (%) 82 (14.6) 27 (30.3) < 0.01
 No No. (%) 478 (85.4) 62 (69.7)
Tumor appearance
 Papillary No. (%) 478 (85.4) 78 (87.6) 0.57
 Solid No. (%) 82 (14.6) 11 (12.4)
Tumor number
 Solitary No. (%) 389 (69.5) 58 (65.1) 0.42
 Multiple No. (%) 171 (30.5) 31 (34.9)
Largest tumor diameter
 < 3 cm No. (%) 532 (95.0) 80 (89.9) 0.05
 ≥ 3 cm No. (%) 28 (5.0) 9 (10.1)
High-grade tumor
 Yes No. (%) 313 (55.9) 42 (47.2) 0.13
 No No. (%) 247 (44.1) 47 (52.8)
Pathological tumor stage (Benign vs pT+)
 Benign No. (%) 108 (19.2) 25 (28.1) 0.06
 pTis No. (%) 49 (8.8) 8 (9.0)
 pTa No. (%) 243 (43.4) 31 (34.8)
 pT1 No. (%) 117 (20.9) 16 (18.0)
 ≥ pT2 No. (%) 43 (7.7) 9 (10.1)
Concomitant CIS
 Yes No. (%) 120 (21.4) 18 (20.2) 0.79
 No No. (%) 440 (78.6) 71 (79.8)
  1. CS conventional systems, TPS The Paris System, TUR transurethral resection, CIS carcinoma in situ
  2. *P values were estimated using using the Mann–Whitney U test or the Fisher’s exact test