SEROHOW field

containing table

tblBAS

explanation of variable

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
• 8 = Other
• 9 = Unknown

exists since HICDEP version

1.70