Table 3. Results from univariate and multivariate analyses of MG symptom aggravation after URI.
| Variables | MG symptom aggravation after URI | |||
|---|---|---|---|---|
| Univariate | Multivariate | |||
| OR (95% CI) | p | OR (95% CI) | p | |
| Age | 0.99 (0.97–1.02) | 0.663 | 0.99 (0.96–1.02) | 0.612 |
| Gender | 0.38 (0.13–1.10) | 0.074 | 0.43 (0.14–1.30) | 0.135 |
| Disease duration | 0.99 (0.95–1.04) | 0.721 | 1.00 (0.95–1.05) | 0.895 |
| Ocular or generalized MG | 1.76 (0.47–6.53) | 0.398 | 1.25 (0.31–4.97) | 0.753 |
| AChR antibody | 0.88 (0.22–3.49) | 0.860 | ||
| RNS test | 1.22 (0.41–3.65) | 0.725 | ||
| Thymoma | 1.49 (0.58–3.79) | 0.405 | ||
| Thymectomy for nonthymomatous MG | 2.05 (0.43–9.73) | 0.365 | ||
| Prednisolone | 1.72 (0.59–5.05) | 0.321 | ||
| Immunosuppressant | 1.50 (0.62–3.64) | 0.370 | ||
| Prednisolone dosage | 1.04 (0.98–1.10) | 0.208 | ||
| Vaccination | 1.35 (0.55–3.31) | 0.516 | ||
| ILI or common cold | 3.76 (1.41–10.04) | 0.008 | 3.20 (1.15–8.92) | 0.026 |
AChR: acetylcholine receptor, CI: confidence interval, ILI: influenza-like illness, MG: myasthenia gravis, OR: odds ratio, RNS: repetitive nerve stimulation, URI: upper respiratory infection.