Table 5.
Coefficients for multiple regression models among African Americansa
| Marker/test | Log of marker (test for trend)b (p-value) | Marker quartile 2 vs 1c | Marker quartile 3 vs 1 | Marker quartile 4 vs 1 |
|---|---|---|---|---|
| IL8/Recall a Pattern | 23.0 ± 11.0 (0.034) | 227.6 ± 136.9 | 182.6 ± 154.4 | 268.2 ± 139.6 |
| IL8/Digit Symbol Substitution | 26.0 ± 11.0 (0.018) | −66.5 ± 137.4 | 17.0 ± 154.9 | 235.4 ± 140.0 |
a
All models adjust for Age, Gender, and Education.
b
A positive coefficient indicates that higher levels of the marker are associated with longer (slower) reaction times, measured in milliseconds. No categorical variables for markers in this model.
c
Cutpoints for quartiles determined by dividing the population into four equal-sized groups. No continuous variable for marker in this model.