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Table 1 Baseline characteristics of patients with methanol intoxication, stratified according to status of renal damage as AKI or non-AKI (n = 50)

From: Acute kidney injury and the risk of mortality in patients with methanol intoxication

Variable AKI patients
(n = 33)
Non-AKI patients
(n = 17)
All patients
(N = 50)
P value
Age, years 50.9 ± 13.7 41.6 ± 15.6 47.8 ± 14.9 0.034*
Male, n (%) 30 (90.9) 7 (42.8) 37 (74.0) 0.000***
Hypertension, n (%) 11 (33.3) 1 (5.9) 12 (24.0) 0.031*
Diabetes mellitus, n (%) 6 (18.2) 1 (5.9) 7 (14.0) 0.235
Hepatitis B or C virus carrier, n (%) 7 (21.2) 0 (0) 7 (14.0) 0.041*
Time from exposure to hospital arrival, hours 9.6 ± 17.8 3.5 ± 5.9 7.5 ± 15.1 0.180
Time from exposure to initiation of haemodialysis, hours 22.7 ± 18.4 12.0 ± 6.5 19.0 ± 16.0 0.051
Unintentional exposure, n (%) 27 (82.8) 6 (35.3) 33 (64.0) 0.001***
Habitual alcohol user, n (%) 28 (84.8) 7 (41.2) 35 (70.0) 0.001***
Route of exposure, n (%)     0.626
Oral exposure 32 (97.0) 16 (94.1) 48 (96.0)  
Intravenous exposure 1 (3.0) 1 (5.9) 2 (4.0)  
Source of methanol, n (%)     0.003**
Illegal commercial alcohol, n (%) 22 (66.7) 6 (35.3) 28 (56.0)  
Illegal handmade alcohol, n (%) 5 (15.2) 0 (0) 5 (10.0)  
Methomyl pesticide, n (%) 3 (9.1) 2 (11.8) 5 (10.0)  
Industrial methanol, n (%) 3 (9.1) 9 (52.9) 12 (24.0)  
  1. *P < 0.05, **P < 0.01, and ***P < 0.001