is question type has answer option collects ABO Blood Group Multiple Choice Single Selection Question SickleInAfrica Core Data Element SickleInAfrica CDE - Blood Group Question 7 SCDO (Jade Hotchkiss) dropdown 1, A+ 2, A- 3, B+ 4, B- 5, O+ 6, O- 7, AB+ 8, AB- abo_blood_group SCD Diagnosis Details The Sickle in Africa core data element that records the respondent's ABO Blood Group. ABO blood group Blood Type A Positive Blood Type A Negative Blood Type B Positive Blood Type B Negative Blood Type O Positive Blood Type O Negative Blood Type AB Positive Blood Type AB Negative