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Table 3 Association between PH and ECG variables in methanol toxicity with univariate and multiple logistic regression

From: Electrocardiographic findings of methanol toxicity: a cross-sectional study of 356 cases in Iran

  PH P-value Odds ratio (95% CI)
Univariate
P-value Odds ratio (95% CI)
Multiple
P-value
> 7 <=7
QTC < 500 238 (85.6) 40 (14.4) < 0.001 1 1
> = 500 41 (60.3) 27 (39.7) 3.92 (2.17–7.07) < 0.001 3.15 (1.55–6.40) 0.001
QT dispersion < 40 153 (85.0) 27 (15.0) 0.032 1 1
> = 40 126 (75.9) 40 (24.1) 1.80 (1.05–3.09) 0.034 1.19 (0.62–2.26) 0.603
T slope < 69 184 (81.1) 43 (18.9) 0.700 1 1
> = 70 96 (79.3) 25 (20.70 1.11 (0.64–1.93) 0.700 2.28 (1.11–4.69) 0.488
AVB No 275 (82.6) 58 (17.4) < 0.001 1 1
Yes 4 (33.3) 8 (66.7) 9.48 (2.76–32.55) < 0.001 4.46 (1.03–19.23) 0.045
Rate 60–100 208 (84.2) 39 (15.8) 0.026 1 1
< 59 8 (66.7) 4 (33.3) 2.67 (0.77–8.29) 0.123 1.8 (0.371–8.70) 0.467
> 100 63 (72.4) 24 (27.6) 2.03 (1.14–3.63) 0.017 2.32 (1.19–4.53) 0.014
Brugada No 268 (82.0) 59 (18.0) 0.010 1 1
Yes 11 (57.9) 8 (42.1) 3.30 (1.27–8.57) 0.014 2.91 (0.94–8.99) 0.063
J elevation No 87 (85.3) 15 (14.7) 0.156 1 1
Yes 192 (78.7) 52 (21.3) 1.57 (0.84–2.94) 0.159 1.16 (0.55–2.48) 0.693
STEMIa No 273 (83.2) 55 (16.8) < 0.001 1 1
Yes 6 (33.3) 12 (66.7) 9.93 (3.57–27.58) < 0.001 12.82 (3.82–43.11) < 0.001
BBBa No 261 82.1) 57 (17.9) 0.011 1 1
Yes 16 (61.5) 10 (38.5) 2.86 (1.24–6.63) 0.014 2.48 (0.92–6.66) 0.073
Poor progression No 260 (81.5) 59 (18.5) 0.101 1 1
Yes 17 (68.0) 8 (32.0) 2.07 (0.86–2.03) 0.107 2.41 (0.88–6.56) 0.086
Low voltage No 267 (80.9) 63 (19.1) 0.398 1 1
Yes 10 (71.4) 4 (28.4) 1.70 (0.52–5.58) 0.385 1.93 (0.50–7.54) 0.343
  1. aBBB Bundle branch block, STEMI ST segment elevation myocardial infarction, AVB Atrioventricular conduction block, P value less than 0.05 considered significant