| Field Name | Format | Description |
|---|---|---|
| PATIENT | Character or Numeric | *Required Code to identify patient (Cohort Patient ID) |
| DROP_Y | Numeric 0 = No 1 = Yes | Has the patient dropped out? |
| DROP_D | YYYY-MM-DD | If patient has dropped out, Date of last visit |
| DROP_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for DROP_D |
| DROP_RS | Character See Code List | Reason for Drop |
| DEATH_Y | Numeric 0 = No 1 = Yes | Has the patient died? |
| DEATH_D | YYYY-MM-DD | Date of Death |
| DEATH_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for DEATH_D |
| L_ALIVE_D | YYYY-MM-DD | Last date patient known to be alive |
| L_ALIVE_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for L_ALIVE_D |
| MOTHERDEATH_Y | Numeric 0 = No 1 = Yes 9 = Unknown | Has the patient's biological mother died? |
| MOTHERDEATH_D | YYYY-MM-DD | Date of death of the patient's biological mother |
| MOTHERDEATH_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for MOTHERDEATH_D |
| FATHERDEATH_Y | Numeric 0 = No 1 = Yes 9 = Unknown | Has the patient's biological father died? |
| FATHERDEATH_D | YYYY-MM-DD | Date of death of the patient's biological father |
| FATHERDEATH_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for FATHERDEATH_D |