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Effect of categorical covariates on HbA1C improvement.
| Group | N | Mean | Std. deviation | P value (t-test) |
|---|---|---|---|---|
| Total sample | 118 | -0.3653 | 1.342 | |
| Female | 67 | -0.3507 | 1.351 | NS |
| Male | 51 | -0.3843 | 1.343 | |
| Black | 70 | -0.5214 | 1.481 | NS |
| White | 48 | -0.1375 | 1.083 | |
| Untreated | 59 | 0.2153 | 0.361 | 0.0001∗ |
| Treated | 59 | -0.9458 | 1.678 |
NS: P value not statistically significant (P > 0.05); P: probability.
