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%) |
|
||
MV+: patients underwent mechanical ventilation