Table 5.
Variables predicting ≥ 50% response and ≥ 75% response in patients with chronic migraine (CM): A logistic regression model
| Variable | ≥ 50% response rate | ≥ 75% response rate | ||
|---|---|---|---|---|
| Odds ratio (95% CI) |
p-value | Odds ratio (95% CI) |
p-value | |
| Sex | ||||
| M | 1.00 | 1.00 | ||
| F | 0.93 (0.60–1.35) | 0.623 | 0.86 (0.57–1.30) | 0.469 |
| Age (yrs) | 1.01 (0.99–1.02) | 0.271 | 1.00 (0.99–1.02) | 0.805 |
| BMI | ||||
| Normal | 1.00 | |||
| Underweight | 1.19 (0.41–3.40) | 0.750 | ||
| Overweight | 1.06 (0.56–2.03) | 0.849 | ||
| Obesity | 0.21 (0.07–0.64) | 0.006 | ||
| UP | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.35 (0.95–1.91) | 0.093 | 1.29 (0.92–1.81) | 0.133 |
| UAs | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.49 (1.05–2.11) | 0.026 | 1.34 (0.95–1.88) | 0.099 |
| Allodynia | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.14 (0.79–1.64) | 0.483 | 1.23 (0.86–1.74) | 0.253 |
| UP + allodynia | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.71 (1.04–2.83) | 0.034 | 1.92 (1.22–3.06) | 0.005 |
| UP + UAs | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.90 (1.15–3.16) | 0.012 | 1.78 (1.14–2.80) | 0.012 |
UP Unilateral pain, UAs Unilateral cranial autonomic symptoms, BMI Body mass index, Underweight < 18.5, Normal weight 18.5 to < 25, Overweight 25 to < 30, Obesity ≥ 30, Hosmer–Lemeshow test for different models ranged from χ2 = 1.233 to χ2 = 8.420, with corresponding p-values ranging from 0.996 to 0.394