보건복지부 국립정신건강센터 정신건강연구소 연구원
Researcher, Mental Health Research Institute, National Center for Mental Health, Seoul, Korea
Copyright © 2024 Korean Society of Stress Medicine.
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Variable | Measurement | |
---|---|---|
Independent variable | Stress | 1∼5 |
Dependent variable | Anxiety | 7∼28 (GAD-7) |
Mediating variable | Sleep time | Continuous variable (Hour) |
Control variable | Gender | Male=0, Female=1 |
Age | Middle school student=0 | |
High school student=1 | ||
Self rated health | Very bad=1∼Very good=5 | |
Feeling of depression | No=0 | |
Yes=1 | ||
Household type | Living with family=0 | |
Separation from family=1 | ||
Household economy | Low=0, Middle=1, High=2 | |
School type | Coeducation school=0 | |
Gender classification school=1 | ||
Academic score | Low=0, Middle=1, High=2 |
Variable | Category | N (%)/M±SD |
---|---|---|
Gender | Male | 23,675 (50.5) |
Female | 23,195 (49.5) | |
Age | Middle school student | 25,380 (54.1) |
High school student | 21,490 (45.9) | |
Self rated health | Very bad | 284 (0.6) |
Bad | 4,400 (9.4) | |
Normal | 12,218 (26.1) | |
Good | 20,526 (43.8) | |
Very good | 9,442 (20.1) | |
Feeling of depression | No | 33,663 (71.8) |
Yes | 13,207 (28.2) | |
Household type | Living with family | 44,635 (95.2) |
Separation from family | 2,235 (4.8) | |
Household economy | Low | 5,111 (10.9) |
Middle | 21,946 (46.8) | |
High | 19,813 (42.3) | |
School type | Coeducation school | 31,936 (68.2) |
Gender classification school | 14,884 (31.8) | |
Academic score | Low | 14,376 (30.7) |
Middle | 14,111 (30.1) | |
High | 18,383 (39.2) | |
Stress | 3.33±0.95 (Skewness: −.074, Kurtosis: −.262) | |
Anxiety | 11.15±4.57 (Skewness: −1.442, Kurtosis: 2.321) | |
Sleep time | 6.07±2.32 (Skewness: 1.482, Kurtosis: 2.011) |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
---|---|---|---|---|---|---|---|---|---|---|
2 | −.007 | |||||||||
3 | −.129 |
−.064 |
||||||||
4 | .107 |
.009 |
−.160 |
|||||||
5 | −.037 |
.176 |
−.009 |
.022 |
||||||
6 | −.044 |
−.101 |
.142 |
−.055 |
−.050 |
|||||
7 | .009 |
.190 |
−.005 | −.034 |
−.029 |
−.040 |
||||
8 | −.009 |
−.137 |
.087 |
−.080 |
−.012 |
.277 |
−.036 |
|||
9 | .135 |
.041 |
−.300 |
.360 |
.015 |
−.090 |
−.005 | −.053 |
||
10 | −.094 |
−.221 |
.114 |
−.098 |
−.034 |
.060 |
−.047 |
.106 |
−.135 |
|
11 | .157 |
.009 |
−.304 |
.425 |
.011 |
−.094 |
−.017 |
−.043 |
.525 |
−.113 |
Variable | Model 1 (Stress→Sleep time) |
Model 2 (Stress→Anxiety) |
Model 3 (Stress+Sleep time→Anxiety) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
B | SE | β | VIF | B | SE | β | VIF | B | SE | β | VIF | ||
Constant variable | −6.691 | .072 | 6.929 | .118 | 7.197 | .129 | |||||||
Control variable | Gender | .333 | .021 | .072 |
1.034 | .536 | .034 | .059 |
1.034 | .522 | .034 | .057 |
1.039 |
Age | .950 | .022 | .204 |
1.100 | −.159 | .035 | −.017 |
1.100 | −.197 | .036 | −.021 |
1.145 | |
Self rated health | −.138 | .012 | −.054 |
1.131 | −.703 | .020 | −.139 |
1.131 | −.697 | .020 | −.138 |
1.135 | |
Feeling of depression | .234 | .025 | .045 |
1.163 | 2.631 | .040 | .259 |
1.163 | 2.621 | .040 | .258 |
1.166 | |
Household type | −.030 | .049 | −.003 | 1.040 | .060 | .081 | .003 | 1.040 | .061 | .081 | .003 | 1.040 | |
Household economy | .002 | .016 | .001 | 1.109 | .203 | .027 | .029 |
1.109 | −.203 | .027 | −.029 |
1.109 | |
School type | .032 | .023 | .006 | 1.044 | .051 | .037 | .005 | 1.044 | .053 | .037 | .005 | 1.044 | |
Academic score | .179 | .013 | .064 |
1.105 | .089 | .021 | .016 |
1.105 | .096 | .021 | .017 |
1.109 | |
Independent variable | .198 | .012 | .081 |
1.245 | 1.831 | .020 | .381 |
1.245 | 1.823 | .020 | .379 |
1.252 | |
Mediating variable | .040 | .008 | .020 |
1.087 | |||||||||
R2 | .080 | .363 | .364 | ||||||||||
△R2 | .283 | .001 | |||||||||||
Adjusted R2 | .079 | .362 | .363 | ||||||||||
F | 455.097 |
2,971.526 |
2,678.712 |
||||||||||
Stress→Sleep time→Anxiety | Indirect effect BootLLCI | .005 | |||||||||||
Indirect effect BootULCI | .011 |
M: mean, SD: standard deviation.
p<.05, p<.01, p<.001. 1. gender, 2. age, 3. self rated health, 4. feeling of depression, 5. household type, 6. household economy, 7. school type, 8. academic score, 9. stress, 10. sleep time, 11. anxiety.
p<.001. B: regression coefficient, SE: standard error,