Why do I have a number on my negative test result?
I have taken an HIV test and my index value is 0.08 which is negative, what does this mean?
Some tests (not usually in the UK) include a number (ie 0.31 or 0.64).
- If the number is less than 1.0 the result is negative.
- If the result is above 1.0 the result is positive
- If the result is very close to 1.0 (higher than 0.90) the doctor may repeat the test.
A higher number below 1.0 does NOT indicate a higher chance of having HIV.