Table 4 Standardised difference of confounding variables between TPV/PR and BOC/PR patients after the three approaches to matching
After naïve matching | After 0.1 caliper limit | After 0.2 caliper limit | |
|---|---|---|---|
Treatment experinced | 0.000 | 0.04 | 0.04 |
Presence of cirrhosis | 0.000 | 0.022 | 0.022 |
Age | −0.014 | 0.011 | 0.016 |
BMI | −0.003 | −0.005 | −0.002 |
Baseline HCV > 800,000 | 0.019 | 0.019 | 0.019 |
GT1 | −0.022 | 0.000 | 0.000 |
GT1b | 0.019 | 0.039 | 0.039 |
IL28B CT | 0.018 | −0.018 | −0.018 |
IL28B TT | 0.027 | 0.072 | 0.028 |