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Table 7 Factor loadings of the six variables

From: Description of recurrent headaches in 7–14-year-old children: Baseline data from a randomized clinical trial on effectiveness of chiropractic spinal manipulation in children with recurrent headaches

Variable

Factor1

Factor2

Frequency

0.0006

0.2953

Intensity

0.4347

 − 0.0814

Duration

0.3482

 − 0.0159

Medication

0.3039

 − 0.0062

Length

0.2942

0.2379