SCC categories

SCC level

(×1000 cells/ml)

Odds-ratio

(OR)

95% confidence interval of the OR

1. Uninfected

<150

Reference

-

2. Healed

>150 before AI date

1.19

0.77 - 1.83

<150 after AI date

3. New infection

<150 before AI date

1.29

0.88 - 1.88

>150 after AI date

4. Chronic infection

>150,000 before and after AI date

1.48

1.00 - 2.18

Total infected (2 + 3 + 4)

<150

1.33

0.99 - 1.78