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Table 5 Results in the indicators according to the complexity of cases attended in the centers participating in the study

From: Quality assurance in specialized headache units in Spain: an observational prospective study

Indicators in the study Headaches Specialized Units
(N patients = 135)
Headaches consultations (N patients = 178)   
  Mean Standard Deviation Mean Standard Deviation Confidence interval on the difference between means P-Value
CEF1. Percentage of patients diagnosed with primary chronic headache who, in a period of one year, attend the Emergency Room due to headache or complications of treatment. 16.3 37.1 38.2 48.7 12.0, 31.8 0.0001
CEF2. Percentage of patients with chronic migraine who improve in the assessment according to the MIDAS scale, pre-post measure, at three months following therapeutic intervention. 62.7 48.5 71.3 45.3 −2.1, 19.3 0.113
CEF3. Percentage of patients with primary chronic headache who progress to episodic headache (<  15 days of pain per month) after treatment. 62.2 48.7 71.3 45.3 −1.4, 19.6 0.092
CEF4. Percentage of patients who obtain more than 7/10 points on scales that measure satisfaction with the care provided. 92.6 26.3 84.3 36.5 −15.6, − 1.0 0.020
CEF5. Percentage of patients with primary chronic headache treated in the Unit with at least one period of sick leave due to headache in the previous three months. 14.8 35.6 13.5 34.2 −15.6, −6.5 0.738
CEF6. Percentage of patients with primary headache receiving preventive treatment three months after their prescription. 92.6 26.3 78.6 41.1 −21.9, −6.0 0.0001
CEF7. Percentage of patients with primary headache in analgesic treatment for more than 10 days a month in the last 3 months in the Specialized Headache Units. 34.8 47.8 43.3 49.7 −2.5, 19.4 0.129
CEF8. Percentage of patients with a diagnosis of primary headache in the Specialized Headache Units or Doctor’s Surgery, without repetition of neuroimaging studies in a one-year period. 3.7 18.9 22.5 41.8 11.1, 26.4 0.0001
CEF9. Percentage of patients with primary chronic headache in non-recommended symptomatic treatment. 17.2 37.8 22.5 41.9 −3.7, 14.3 0.242
CEF10. Percentage of patients with primary chronic headache who suffer one or more adverse events which resulted in treatment being withdrawn. 22.2 41.7 36.5 48.3 4.1, 24.5 0.005
CEF11. Percentage of patients with cluster headache attended within seven days from the onset. 73.2 44.9 42.5 49.6 −48.1, −13.2 0.0001
CEF12. Percentage of pregnant patients with primary headache attended within 15 days of the positive pregnancy test. 76.0 43.6 13.3 34.1 −78.4, −47.0 0.0001
CEF13. Percentage of patients with cluster headache episode who have home oxygen therapy. 62.3 48.9 37.4 48.6 − 39.6, −10.1 0.001
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