Table 18.3: Dynamic symptom 3 118 121 pattern Stable symptom 19 115 pattern a) Estimate the prevalence of dynamic symptoms in the population. b) Estimate the risk of adverse event in the population. c] What percent of patients with dynamic symptoms had an adverse event? What percent of those with stable symptoms had an adverse event? d) Calculate the risk ratio of adverse event associated with symptom pattern. e) Calculate the odds ratio of adverse events associated with symptom pattern. Why is this OR largerfsmaller than the RR calculated in (d)