Table 3.
Adjusted linear regressions of cognition predicting average sodium excretion
| Factors | Attention
|
Executive function
|
Memory
|
Global cognition
|
||||
|---|---|---|---|---|---|---|---|---|
| b (SD) | P-value | b (SD) | P-value | b (SD) | P-value | b (SD) | P-value | |
| Female | −821.06 (187.09) | <0.001* | −881.22 (188.50) | <0.001* | −867.96 (196.47) | <0.001* | −795.13 (184.41) | <0.001* |
| Non-white | 1.38 (214.30) | 0.994 | 37.43 (213.28) | 0.861 | 13.25 (203.62) | 0.948 | −26.78 (205.04) | 0.896 |
| SES | 59.13 (22.78) | 0.010* | 54.67 (22.98) | 0.019* | 57.98 (22.16) | 0.010* | 61.18 (22.47) | 0.007* |
| Someone else prepares food | −6.29 (177.98) | 0.972 | −18.21 (179.43) | 0.919 | −51.35 (174.94) | 0.770 | −15.94 (175.44) | 0.928 |
| Correctly recalled sodium recommendation | −435.44 (192.11) | 0.025* | −459.58 (194.44) | 0.019* | −448.40 (184.69) | 0.016vd | −439.10 (187.66) | 0.021* |
| BMI | 44.73 (13.71) | 0.001* | 42.89 (13.60) | 0.002* | 41.86 (13.22) | 0.002* | 41.91 (13.15) | 0.002* |
| Cognition | 2.90 (12.09) | 0.811 | 12.99 (11.58) | 0.264 | 15.23 (11.97) | 0.205 | −3.35 (14.71) | 0.820 |
| R2 (adjusted R2) | 0.22 (0.20) | <0.001* | 0.24 (0.20) | <0.001* | 0.23 (0.19) | <0.001* | 0.22 (0.19) | <0.001* |
Notes: All of the above factors were entered simultaneously into single regression models predicting average sodium excretion; a separate simultaneous model was used for each cognitive domain.
*
P<0.05.
Abbreviations: BMI, body mass index; SES, socioeconomic status; SD, standard deviation; b, unstandardized regression coefficient; R, multiple correlation coefficient.