Table 1 Characteristics of the study population. CI: confidence interval
From: Total health insurance costs in children with a migraine diagnosis compared to a control group
Characteristics | Control group (95% CI) | Migraine group (95% CI) | P value |
|---|---|---|---|
N | 306,926 | 2597 (51.2% incident in 2017) | – |
Girls % | 48.7 (48.5,48.9) | 47.1 (45.2;49.1) | 0.12 |
Mean age in years | 8.4 (8.4;8.5) | 9.3 (9.3;9.4) | < 0.0001 |
Mean number of comorbid ICD-10 chapters | 3.9 (3.9;3.9) | 5.8 (5.7;5.8) | < 0.0001 |