SEROHOW field

Containing table:
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