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Table 1 Patient demographics and caustic damage parameters for all subjects and for those in the non-elderly and elderly groups

From: The Role of Age in Predicting the Outcome of Caustic Ingestion in Adults: A Retrospective Analysis

Variables

Total

(n= 389)

Non-elderly (< 65 years)

(n= 321)

Elderly (65 years)

(n= 68)

Pvalue

Median age (Q1-Q3)

40 (29 - 55)

36 (26 - 45)

74 (68 - 77)

< 0.001*

Mean age (minimum-maximum)

43.25 (17-107)

36.72(17-64)

74.07 (65-107)

 

Gender (male %)

189 (48.6)

165 (51.4)

24 (35.3)

0.016*

Substance

   

0.472

   Clean detergent

193 (49.6)

160 (49.8)

33 (48.5)

0.844

   HCl

107 (27.5)

90 (28.0)

17 (25.0)

0.610

   Other

89 (22.9)

71 (22.1)

18 (26.5)

0.438

Acid/alkaline

   

0.444

   Acid

245 (63.0)

206 (64.2)

39 (57.4)

0.290

   Alkaline

124 (31.9)

100 (31.2)

24 (35.3)

0.506

   Unknown

20 (5.1)

15 (4.7)

5 (7.4)

0.363

Grade a

   

0.002*

   1

57 (14.7)

52 (16.2)

5 (7.4)

0.061

   2a/2b

153 (39.3)

133 (41.4)

20 (29.4)

0.065

   3a

61 (15.7)

53 (16.5)

8 (11.8)

0.328

   3b

104 (26.7)

73 (22.7)

31 (45.6)

< .001*

Furthest location reached by endoscope a

   

0.091

   Esophagus

8 (2.1)

8 (2.5)

0 (0)

-

   Stomach

31 (8.0)

22 (6.9)

9 (13.2)

0.075

   Duodenum

344 (88.4)

287 (89.4)

57 (83.8)

0.191

Most severe site of damage as observed by endoscopy a

   

0.422

   Esophagus

82 (21.1)

70 (21.8)

12 (17.6)

0.445

   Stomach

267 (68.6)

222 (69.2)

45 (66.2)

0.630

   Duodenum

37 (9.5)

28 (8.7)

9 (13.2)

0.249

  1. Data other than those regarding age are expressed as n (%).
  2. aData were missing for 14 subjects in the grade category, for 3 subjects in the site of damage category, and for 6 subjects in the depth of scope category.
  3. *P value < 0.05.