Table 5 Drug use and withdrawal situation
From: Analysis of risk factors for medication-overuse headache relapse: a clinic-based study in China
Indicators | Case group | Control group | Statistic | P |
|---|---|---|---|---|
Drug use frequency (days/month) | 24.26 ± 5.035 | 22.12 ± 4.521 | t = 1.982 | 0.051 |
Headache frequency After drug withdrawal (days/month) | 7.67 ± 1.961 | 3.42 ± 1.499 | t = 11.026 | < 0.001 |
Duration of each attack (h) | 1 ~ 4 (2) | 1 ~ 6 (2) | Z = −1.104 | 0.270 |
Headache degree (VAS) after drug withdrawal | 5.52 ± 1.341 | 4.85 ± 0.943 | t = 2.348 | 0.024 |