Risk Estimate

Value

95% Confidence Interval

Upper

Lower

Odds ratio for modified grading (none & mild vs. moderate & severe)

0.451

0.206

0.989

For cohort scars (none & mild)

0.758

0.593

0.969

For cohort scars (moderate & severe)

1.681

0.970

2.914

Number of valid cases

151