A group of researchers examined the relationship

A group of researchers examined the relationship among long-term oxygen therapy and hospital readmission for COPD. Previous studies demonstrated that prior administration of long-term oxygen therapy has shown to be related to higher risk of readmission for COPD. It is standard practice to prescribe long-term oxygen therapy for individuals with high severity COPD (relationship between exposure and confounder). COPD severity has been associated with higher risk of readmission for COPD (relationship between outcome and confounder). Identify the exposure variable in the scenario above. A) Prior administration of long-term oxygen therapy B) COPD severity C) Hospital readmission for COPD D) There is no exposure variable. Identify the outcome variable in the scenario above. A) Prior administration of long-term oxygen therapy B) Hospital re-admission for COPD C) COPD severity D) There is no outcome variable Identify the potential confounder(s) variable in the scenario above. A) Prior administration of long-term oxygen therapy B) Hospital re-admission for COPD C) COPD severity D) There is no outcome variable SCIENCE HEALTH SCIENCE NURSING

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