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Table 2 The associations of baseline and peri-operative characteristics with complications

From: Surgical Outcomes of LigaSure Hemorrhoidectomy in the Elderly Population: A retrospective cohort study

  Complications P value
No (n = 1136) Yes (n = 102)
Median age (range) 50.0 (39.0, 59.0) 48.0 (40.0, 57.0) 0.738b
Sex Female 579 (51.0%) 41 (40.2%) 0.039*a
Male 557 (49.0%) 61 (59.8%)
Hemorrhoids grade III 807 (71.0%) 48 (47.1%)  < 0.001*a
IV 329 (29.0%) 54 (52.9%)
ASA grade I 398 (35.0%) 33 (32.4%) 0.277a
II 724 (63.7%) 66 (64.7%)
III 14 (1.2%) 3 (2.9%)
Preoperative hemoglobin (g/dl) 13.6 (12.4, 14.8) 14.1 (12.3, 15.4) 0.296
Postoperative pain score 3.0 (2.0, 5.0) 4.0 (2.0, 6.0)  < 0.001*b
Operation time (min) 18.0 (13.0, 25.0) 20.0 (15.0, 29.0) 0.001*b
FKMIP 0 727 (64.0%) 46 (45.1%)  < 0.001*b
1 310 (27.3%) 31 (30.4%)
2 71 (6.3%) 17 (16.7%)
3 22 (1.9%) 6 (5.9%)
4 5 (0.4%) 1 (1.0%)
5 1 (0.1%) 1 (1.0%)
  1. Categorical variables were presented by count and percentage. Continuous variables were presented by median and interquartile range (IQR). aFisher’s exact test. b Mann–Whitney U test. *Pis significant. Postoperative pain score: the pain score on the morning of the 1st postoperative day, ketoprofen (30 mg IM/per time), morphine (5 mg IV/per time)
  2. American Society of Anesthesiologists (ASA); Frequency of ketoprofen or morphine injection postoperatively (FKMIP); intramuscular (IM); intravenous (IV)