[Verified Answer]: سؤال 18 Based on the below information fill…

سؤال 18 Based on the below information fill in the following table about the availability of causation requirements and supporting evidence, mark :the appropriate cell as available or not It was suspected that exposure to a certain chemical factor would be a risk for asthma problems occurrence. This chemical factor is found in the air only near chemical factories and human exposure to it leaves a biomedical indicator in blood that can be .measured by blood tests and would last forever Animal models found no evidance that exposure to the factor would increase the production of the proteins in the body that .would be elevated in asthma patients and stimulates the lungs asthmatic reaction .previous Studies were carried out on humans and they showed similar association The researcher carried out a cohort study on the factor to find out if it can be classified as a causative factor for asthma. None of the participants was diseased before the exposure and after 5 years of follow up he found that the longer the period a person lived near the factories the higher (stronger) the association and that the total Relative Risk (RR) for the disease is 7 for the exposed .compared to the none exposed Based on the information above fill in the table by writing down in front of each of the criteria if it is available or not (available, not available)