Compliance
When the patient was discharged, compliance was monitored by the leftover pill count at their next appointment. In addition, the concentration of polyunsaturated fatty acids in erythrocyte membranes was determined before and during intervention with ω3-LCPUFAs. All side effects that the children presented during the intervention with ω3-LCPUFAs, or placebo were documented and registered by one of the researchers.