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. 2022 Dec 15;58(12):1847. doi: 10.3390/medicina58121847

Table 5.

Surgical outcomes in patients divided into high and low nDSS scores.

Variable nDSS 5–7 nDSS ≥ 8 OR p Value
Operation time, min (mean) 210.67 240.74 - <0.001
Operation time ≥ 260 min, n (%) 16 (28.1%) 48 (72.7%) 6.833 <0.001
EBL, mL (mean) 281.93 702.58 - <0.001
EBL ≥ 300 mL, n (%) 24 (42.1%) 51 (77.3%) 4.675 <0.001
RBC transfusion, n (%) 3 (5.3%) 25 (37.9%) 10.976 <0.001
POHS, days (mean) 8.00 13.32 - 0.001
POHS ≥ 8 days, n (%) 20 (35.1%) 44 (66.7%) 3.700 0.001
CDC grade ≥ IIIa, n (%) 5 (8.8%) 17 (25.8%) 3.608 0.014
Remnant stone, n (%) 4 (7.0%) 7 (10.6%) 1.572 0.543
Recurrent stone, n (%) 2 (3.5%) 4 (6.1%) 1.774 0.685

p values in bold are statistically significant at ≤0.05. nDSS modified difficulty scoring system, OR odds ratio, EBL estimated blood loss, RBC red blood cell, POHS postoperative hospital stay, CDC Clavien–Dindo classification.