Table 2.
Cognitive function |
|||||
---|---|---|---|---|---|
Learning Beta [95% CI] p |
Memory Beta [95% CI] p |
Fluency Beta [95% CI] p |
DSS Beta [95% CI] p |
||
Model 1 | |||||
A | Language Proficiency |
0.52 [0.31–0.72] p < 0.0001 |
0.17 [0.07–0.27] p = 0.001 |
1.43 [1.16–1.69] p < 0.0001 |
3.43 [2.98–3.89] p < 0.0001 |
B | Patterns of Use |
0.21 [0.07–0.35] p = 0.004 |
0.05 [−0.02–0.12] p = 0.13 |
0.87 [0.68–1.06] p < 0.0001 |
1.94 [1.58–2.30] p < 0.0001 |
C | Females versus Males |
0.02 [0.02–0.02] p < 0.0001 |
0.01 [0.01–0.01] p < 0.0001 |
0.002 [−0.00–0.01] p = 0.30 |
0.01 [0.00–0.02] p = 0.008 |
Model 2 | |||||
A | Language Proficiency |
0.29 [0.06–0.52] p = 0.01 |
0.11 [0.01–0.22] p = 0.03 |
0.67 [0.39–0.95] p < 0.0001 |
2.03 [1.63–2.43] p < 0.0001 |
B | Patterns of Use | 0.11 [−0.04–0.25] p = 0.15 |
0.04 [−0.03–0.11] p = 0.25 |
0.44 [0.25–0.63] p < 0.0001 |
1.10 [0.77–1.43] p < 0.0001 |
C | Females versus Males |
0.02 [0.02–0.03] p < 0.0001 |
0.01 [0.01–0.01] p < 0.0001 |
0.01 [0.00–0.01] p = 0.04 |
0.02 [0.01–0.03] p < 0.0001 |
DSS, Digit Symbol Substitution subtest; cognitive test score ranges were as follows: B-SEVLT Learning = 0–45, B-SEVLT Memory = 0–15, Fluency = 0–50, DSS = 0–80. Bolded entries denote significance at p < 0.05 with exact p-values outlined within the table. Model 1: Age-adjusted. Model 2: Adjusted for age as well as education, background, 10-item Center for Epidemiologic Studies of Depression score, annual family income, current occupation, years of US residency, and physical activity level; sex was also included as a covariable in Model 2A and Model 2B but as the predictor variable in Model 2C.