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A total of 109 patients had a cardiovascular event, with event rates of 4.9% with omeprazole and 5.7% with placebo (hazard ratio with omeprazole, 0.99; 95% CI, 0.68 to 1.44; P = 0.96); high-risk subgroups did not show significant heterogeneity.
 109 patients: Subject; 109: Subject.Population; cardiovascular event: Effect; 4.9% with omeprazole and 5.7% with placebo: Treatment; omeprazole: Treatment.Drug; placebo: Treatment.Drug
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 109 patients: Subject; 109: Subject.Population; cardiovascular event: Effect; 4.9% with omeprazole and 5.7% with placebo: Treatment; omeprazole: Treatment.Drug; placebo: Treatment.Drug