SEROHOW field
- Containing table:
- tblBAS
- Explanation of variable:
- For Seroconverters only: How was the seroconversion date determined?
- Format of data:
numeric:
- 1 = Midpoint between last neg/first pos test
- 2 = Lab evidence of seroconversion
- 3 = Seroconversion illness
- 4 = Other
- 9 = Unknown