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Table 3 Comparison of complications during and after the endoscopy in the four groups

From: Anesthetic effect of different doses of butorphanol in patients undergoing gastroscopy and colonoscopy

   Group A (N = 103) Group B (N = 116) Group C (N = 117) Group D (N = 97) F / χ2 P
Propofol injection pain (%) Yes 61 (59.2) 45 (38.8)* 36 (30.8)* 19 (19.6)*# 57.303  < 0.001
Mild 35 (34.0) 38 (32.8) 32 (27.4) 15 (15.5)*#
Moderate 26 (25.2) 7 (6.0)* 4 (3.4)* 4 (4.1)*
Hypoxemia (%) Yes 12 (11.7) 9 (7.8) 12 (10.3) 8 (8.2) 1.221 0.748
Cough (%) Yes 23 (22.3) 9 (7.8)* 8 (6.8)* 6 (6.2)* 19.647  < 0.001
PONV (%) Yes 0 (0.0) 2 (1.7) 0 (0.0) 0.0 (0.0) 5.491 0.139
Dizziness (%) Yes 38 (36.9) 38 (32.8) 56 (47.8) 64 (66.0)*# 36.385  < 0.001
Drowsiness (%) Yes 3 (2.9) 4 (3.4) 5 (4.3) 13 (13.4)*# 13.562 0.004
  1. Qualitative data were presented as (%).Group A: Butorphanol 2.5 μg/kg group; Group B: Butorphanol 5 μg/kg group; Group C: Butorphanol 7.5 μg/kg group; Group D: Butorphanol 10 μg/kg group. *Means compared with Group A (P < 0.05); # means compared with Group B (P < 0.05); means compared with Group C (P < 0.001)