The variables in this situation were: health worker, insurance, asthma, obesity, diabetes, hypertension, angiotensin-converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), Alzheimer, dementia, chronic obstructive pulmonary disease (COPD), arrhythmia, ischemic heart disease, heart failure, liver cirrhosis, rheumatoid arthritis, cancer, cerebrovascular, respiratory and cardiovascular diseases. This evidence concerns the gene ACE and rheumatoid arthritis.