Table 4.

Results of statistical analysis

Optical parameterResponders at 4 weeksNonresponders at 4 weeksP
HbO233.6%82.0%0.03
Hb29.6%82.3%0.0044
%water40.4%84.6%0.60
SP39.3%87.4%0.036

NOTE: The table shows the percentage at 4 weeks of the pretreatment value for all of the functional parameters in responders and nonresponders. At 4 weeks, HbO2, Hb, %water, and SP were all lower for responders compared with nonresponders. All differences were statistically significant, except for %water, which approached significance.