Table 2.
Spearman correlation coefficients among study variables
| Spearman correlation coefficients Prob>|r|under H0: Rho=0 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Depressed status |
Physical HRQoL |
Sleep disturbance |
Global QoL | Physical activity |
White race/ ethnicity |
Other race/ ethnicity |
Black race/ ethnicity |
Hispanic race/ ethnicity |
|
| Depressed status | 1.00000 | −0.09763 <0.0001 |
0.27403 <0.0001 |
−0.28115 <0.0001 |
−0.06665 <0.0001 |
−0.05039 <0.0001 |
−0.01093 0.3032 |
0.01370 0.1971 |
0.08819 <0.0001 |
| Physical HRQoL | −0.09763 <0.0001 |
1.00000 | −0.24839 <0.0001 |
0.18828 <0.0001 |
0.24346 <0.0001 |
0.02425 0.0243 |
0.05090 <0.0001 |
−0.06238 <0.0001 |
0.00640 0.5524 |
| Sleep disturbance | 0.27403 <0.0001 |
−0.24839 <0.0001 |
1.00000 | −0.21080 <0.0001 |
−0.08517 <0.0001 |
0.06863 <0.0001 |
−0.04122 <0.0001 |
−0.06799 <0.0001 |
0.02176 0.0392 |
| Global QoL | −0.28115 <0.0001 |
0.18828 <0.0001 |
−0.21080 <0.0001 |
1.00000 | 0.12714 <0.0001 |
−0.03224 0.0020 |
−0.00200 0.8477 |
0.03684 0.0004 |
0.00275 0.7924 |
| Physical activity | −0.06665 <0.0001 |
0.24346 <0.0001 |
−0.08517 <0.0001 |
0.12714 <0.0001 |
1.00000 | 0.04363 <0.0001 |
0.01838 0.0826 |
−0.05643 <0.0001 |
−0.00844 0.4256 |
| White race/ethnicity | −0.05039 <0.0001 |
0.02425 0.0243 |
0.06863 <0.0001 |
−0.03224 0.0020 |
0.04363 <0.0001 |
1.00000 | n/a | n/a | n/a |
| Other race/ethnicity | −0.01093 0.3032 |
0.05090 <0.0001 |
−0.04122 <0.0001 |
−0.00200 0.8477 |
0.01838 0.0826 |
n/a | 1.00000 | n/a | n/a |
| Black race/ethnicity | 0.01370 0.1971 |
−0.06238 <0.0001 |
−0.06799 <0.0001 |
0.03684 0.0004 |
−0.05643 <0.0001 |
n/a | n/a | 1.00000 | n/a |
| Hispanic race/ethnicity | 0.08819 <0.0001 |
0.00640 0.5524 |
0.02176 0.0392 |
0.00275 0.7924 |
−0.00844 0.4256 |
n/a | n/a | n/a | 1.00000 |
| Education | −0.08828 <0.0001 |
0.12173 <0.0001 |
−0.09101 <0.0001 |
0.04101 <0.0001 |
0.11497 <0.0001 |
0.10965 <0.0001 |
−0.02492 0.0169 |
−0.03266 0.0017 |
−0.13445 <0.0001 |
| Income | −0.14035 <0.0001 |
0.21117 <0.0001 |
−0.11074 <0.0001 |
0.16095 <0.0001 |
0.11063 <0.0001 |
0.16263 <0.0001 |
0.03648 0.0007 |
−0.13442 <0.0001 |
−0.12909 <0.0001 |
| Married | −0.07008 <0.0001 |
0.04619 <0.0001 |
−0.02683 0.0112 |
0.11361 <0.0001 |
0.02242 0.0346 |
0.14671 <.0001 |
0.03852 0.0002 |
−0.18629 <0.0001 |
−0.01058 0.3103 |
| Number of comorbidities |
0.07066 <0.0001 |
−0.35567 <0.0001 |
0.15275 <0.0001 |
−0.09490 <0.0001 |
−0.08119 <0.0001 |
0.03331 0.0014 |
−0.07247 <0.0001 |
0.05584 <0.0001 |
−0.08700 <0.0001 |
| Antidepressant use | 0.14625 <0.0001 |
−0.15567 <0.0001 |
0.06873 <0.0001 |
−0.09436 <0.0001 |
−0.06006 <0.0001 |
0.08255 <0.0001 |
−0.05261 <0.0001 |
−0.05595 <0.0001 |
−0.01407 0.1755 |
| Age | −0.09316 <0.0001 |
−0.09687 <0.0001 |
0.00530 0.6148 |
0.10115 <0.0001 |
0.05309 <0.0001 |
0.17172 <0.0001 |
−0.01452 0.1620 |
−0.12281 <0.0001 |
−0.11306 <0.0001 |
| Optimism | −0.27890 <0.0001 |
0.15230 <0.0001 |
−0.19694 <0.0001 |
0.37717 <0.0001 |
0.09729 <0.0001 |
0.06574 <0.0001 |
−0.06444 <0.0001 |
0.01521 0.1515 |
−0.09002 <0.0001 |
| Social support | −0.22865 <0.0001 |
0.11651 <0.0001 |
−0.16443 <0.0001 |
0.41493 <0.0001 |
0.08018 <0.0001 |
0.05684 <0.0001 |
−0.00822 0.4374 |
−0.02560 0.0156 |
−0.05979 <0.0001 |
| Spearman correlation coefficients Prob>|r|under H0: Rho=0 | |||||||||
| Education | Income | Married | Number of comorbidities |
Antidepres- sant use |
Age | Optimism | Social support |
||
| Depressed status | −0.08828 <0.0001 |
−0.14035 <0.0001 |
−0.07008 <0.0001 |
0.07066 <0.0001 |
0.14625 <0.0001 |
−0.09316 <0.0001 |
−0.27890 <0.0001 |
−0.22865 <0.0001 |
|
| Physical HRQoL | 0.12173 <0.0001 |
0.21117 <0.0001 |
0.04619 <0.0001 |
−0.35567 <0.0001 |
−0.15567 <0.0001 |
−0.09687 <0.0001 |
0.15230 <0.0001 |
0.11651 <0.0001 |
|
| Sleep disturbance | −0.09101 <0.0001 |
−0.11074 <.0001 |
−0.02683 0.0112 |
0.15275 <0.0001 |
0.06873 <0.0001 |
0.00530 0.6148 |
−0.19694 <0.0001 |
−0.16443 <0.0001 |
|
| Global QoL | 0.04101 <0.0001 |
0.16095 <0.0001 |
0.11361 <0.0001 |
−0.09490 <0.0001 |
−0.09436 <0.0001 |
0.10115 <0.0001 |
0.37717 <0.0001 |
0.41493 <0.0001 |
|
| Physical activity | 0.11497 <0.0001 |
0.11063 <.0001 |
0.02242 0.0346 |
−0.08119 <0.0001 |
−0.06006 <0.0001 |
0.05309 <0.0001 |
0.09729 <0.0001 |
0.08018 <0.0001 |
|
| White race/ethnicity | 0.10965 <0.0001 |
0.16263 <0.0001 |
0.14671 <0.0001 |
0.03331 0.0014 |
0.08255 <0.0001 |
0.17172 <0.0001 |
0.06574 <0.0001 |
0.05684 <0.0001 |
|
| Other race/ethnicity | −0.02492 0.0169 |
0.03648 0.0007 |
0.03852 0.0002 |
−0.07247 <0.0001 |
−0.05261 <0.0001 |
−0.01452 0.1620 |
−0.06444 <0.0001 |
−0.00822 0.4374 |
|
| Black race/ethnicity | −0.03266 0.0017 |
-0.13442 <0.0001 |
−0.18629 <0.0001 |
0.05584 <0.0001 |
−0.05595 <0.0001 |
−0.12281 <0.0001 |
0.01521 0.1515 |
−0.02560 0.0156 |
|
| Hispanic race/ethnicity | −0.13445 <0.0001 |
−0.12909 <0.0001 |
−0.01058 0.3103 |
−0.08700 <0.0001 |
−0.01407 0.1755 |
−0.11306 <0.0001 |
−0.09002 <0.0001 |
−0.05979 <0.0001 |
|
| Education | 1.00000 | 0.40636 <0.0001 |
0.00150 0.8859 |
−0.03678 0.0004 |
0.00202 0.8459 |
−0.03510 0.0007 |
0.22911 <.0001 |
0.04023 0.0001 |
|
| Income | 0.40636 <0.0001 |
1.00000 8657 |
0.42135 <0.0001 |
−0.09301 <0.0001 |
−0.04395 <0.0001 |
−0.16946 <0.0001 |
0.20105 <0.0001 |
0.23234 <0.0001 |
|
| Married | 0.00150 0.8859 |
0.42135 <0.0001 |
1.00000 | -0.05154 <0.0001 |
-0.02012 0.0532 |
−0.12569 <0.0001 |
0.03388 0.0014 |
0.26036 <0.0001 |
|
| Number comorbidities | −0.03678 0.0004 |
−0.09301 <0.0001 |
−0.05154 <0.0001 |
1.00000 | 0.10079 <0.0001 |
0.11390 <0.0001 |
−0.06613 <0.0001 |
−0.06407 <0.0001 |
|
| Antidepressant use | 0.00202 0.8459 |
−0.04395 <0.0001 |
−0.02012 0.0532 |
0.10079 <0.0001 |
1.00000 | −0.04352 <0.0001 |
−0.08412 <0.0001 |
−0.06870 <0.0001 |
|
| Age | −0.03510 0.0007 |
−0.16946 <0.0001 |
−0.12569 <0.0001 |
0.11390 <0.0001 |
−0.04352 <0.0001 |
1.00000 | 0.01842 0.0820 |
−0.01811 0.0866 |
|
| Optimism | 0.22911 <0.0001 |
0.20105 <0.0001 |
0.03388 0.0014 |
−0.06613 <0.0001 |
−0.08412 <0.0001 |
0.01842 0.0820 |
1.00000 | 0.31119 <0.0001 |
|
| Social support | 0.04023 0.0001 |
0.23234 <0.0001 |
0.26036 <0.0001 |
-0.06407 <0.0001 |
-0.06870 <0.0001 |
-0.01811 0.0866 |
0.31119 <0.0001 |
1.00000 | |
HRQoL, health-related quality of life; QoL, quality of life.