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. 2020 Summer;14(3):33–46.

Table 1.

Main demographic and clinical characteristics to identify patients who did and did not require mechanical ventilation

Variables MV+ P-value Odds ratio (95%CI)
Age (Year) <= 5 Y 202 23 (11.3%) Chi square
0.19
1.72 (0.74 - 3.99)
> =6 Y 122 8 (6.5%) Reference group
Gender Male 175 17 (9.7%) Chi square
0.92
1.04 (0.49 - 2.19)
Female 149 14 (9.4%) Reference group
Season Spring 72 2 (2.8%) Chi square
0.04*
Reference group
Summer 104 9 (8.7%) 3.35 (0.70 - 15.99)
Fall 75 8 (10.7%) 4.17 (0.86 - 20.40)
Winter 73 12 (16.5) 7.00 (1.51 - 32.53)*
preillness AURI 134 16(12%) Chi square
0.40
Reference group
GE 50 4 (8.0%) 0.63 (0.20 - 1.99)
Other 11 2 (18.2%) 1.61 ( 0.32 - 8.13)
None 129 9 (7.0%) 0.55 (0.23 - 1.30)
Sensory/pain No 175 20 (11.4%) Chi square
0.20
1.65 (0.76 - 3.56)
Yes 149 11 (7.4%) Reference group
Autonomic Involvement No 271 14 (5.2%) Chi square
<0.001*
Reference group
Yes 53 17 (32.0%) 8.88 (4.03 - 19.58)*
Cranial Involvement No 197 5 (2.5%) Chi square
<0.001*
Reference group
Yes 127 26 (20.4%) 9.88 (3.68 - 26.52)*
Electrophysiological pattern Normal 36 0 (0.0%) Exact test
= 0.016*
0.29 (0.009 - 2.68)
unclassified 10 0 (0.0%) 0.98 (0.03 - 9.75)
AIDP 148 11 (7.4%) Reference group
Axonal 124 20 (16.1%) 2.15 (1.01 - 4.69)*
CMAP Amplitude >50%LLN 119 0 (0.0%) Exact test
<0.001*
0.39 (0.01 - 3.62)
<50%LLN 177 12 (6.8%) Reference group
Absent 28 9 (32.1%)
  1. (2.41 - 17.36)*

MV+: patients underwent mechanical ventilation