Table 2 Correlation analysis of insomnia, psychological capital, self-esteem and anxiety
Variables | Mean ± standard deviation | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|
1 Insomnia | 6.044±4.663 | 1 | |||||||
2 Self-effificacy | 26.879±5.639 | -0.179*** | 1 | ||||||
3 Hope | 26.328±5.447 | -0.165*** | 0.773*** | 1 | |||||
4 Resilience | 25.983±4.586 | -0.158*** | 0.729*** | 0.778*** | 1 | ||||
5 Optimism | 25.201±4.058 | -0.146*** | 0.512*** | 0.551*** | 0.604*** | 1 | |||
6 Psychological capital | 104.390±17.127 | -0.188*** | 0.892*** | 0.912*** | 0.898*** | 0.743*** | 1 | ||
7 Self-esteem | 28.993±3.984 | -0.218*** | 0.483*** | 0.448*** | 0.488*** | 0.408*** | 0.529*** | 1 | |
8 Anxiety | 44.642±8.981 | 0.410*** | -0.310*** | -0.248*** | -0.355*** | -0.357*** | -0.361*** | -0.493*** | 1 |