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Table 2 Patient demographic features and caustic ingestion characteristics by endoscopic grade of mucosal injury

From: Caustic ingestion in adults: The role of endoscopic classification in predicting outcome

Variables Overall Endoscopic Grade
  (n = 273)  
   0 1 2a 2b 3a 3b P
   (n = 3) (n = 31) (n = 56) (n = 62) (n = 39) (n = 82)  
Age 43.77 ± 18.46 37.00 ± 27.78 40.45 ± 15.54 42.21 ± 18.96 40.92 ± 16.72 44.10 ± 17.78 48.32 ± 19.94 0.0107*
Male 127 (46.52) 3 (100) 16 (5.93) 31 (11.48) 26 (9.63) 16 (5.93) 35 (12.96) 0.1534
Accidental Ingestion 79 (28.94) 1 (33.33) 10 (32.26) 19 (33.93) 14 (22.58) 15 (38.46) 20 (24.39) 0.3820
Class of Substance         
   Alkaline 96 (35.16) 3 (100) 9 (29.03) 22 (39.29) 24 (38.71) 13 (33.33) 25 (30.49) 0.5302
   Acid         
   HCL 94 (34.43) 0 (0.00) 12 (38.71) 13 (23.21) 23 (37.10) 11 (28.21) 35 (42.68) 0.1498
   Other Acid 83 (30.40) 0 (0.00) 10 (32.26) 21 (37.50) 15 (24.19) 15 (38.46) 22 (26.83) 0.4086
Type of Substance         
   Industrial cleaning 131 (47.99) 2 (66.67) 15 (48.39) 26 (46.43) 28 (45.16) 18 (46.15) 42 (51.22) 0.9574
   Drug 3 (1.10) 0 (0.00) 0 (0.00) 2 (3.57) 1 (1.61) 0 (0.00) 0 (0.00) 0.2862
   Pesticide 13 (4.76) 0 (0.00) 1 (3.23) 5 (8.93) 3 (4.84) 4 (10.26) 0 (0.00) 0.0194*
   Strong acid 95 (34.80) 1 (33.33) 11 (35.48) 15 (26.79) 24 (38.71) 14 (35.90) 30 (36.59) 0.7028
   Food 12 (4.40) 0 (0.00) 2 (6.45) 2 (3.57) 2 (3.23) 2 (5.13) 4 (4.88) 0.9265
   Others 19 (6.96) 0 (0.00) 2 (6.45) 6 (10.71) 4 (6.45) 1 (2.56) 6(7.32) 0.7013
Package Volume (ml) 100 (2–3000) 20 (10–100) 50 (30–100) 100 (35–150) 100 (50–150) 100 (50–120) 100 (50–200) 0.4423
  1. * P < 0.05 statistical significance
  2. Data presented as median (range) or N (%), endoscopic grade 0 is not included in the comparison for small contribution and possible confounding