Predicted HIV test

Total

Tested (T)

Not tested (NT)

Actual HIV test

Tested (T)

True tested (TT)

False Not tested (FNT)

TT + FNT

Not tested (NT)

False tested (FT)

True Not tested (TNT)

FT + TNT

Total

TT + FT

FNT + TNT

TT + FNT + FT + TNT