Table 3.
Correlation coefficients of TCC and GHQ-12 items in each period.
| Items | COVID-19 epidemic |
Difference | 95% CI | |
|---|---|---|---|---|
| No | Yes | |||
| G1: Lost sleep- | −0.280** | −0.111* | −0.169 | −0.271, −0.065 |
| G2: Under strain- | −0.283** | −0.108* | −0.174 | −0.281, −0.075 |
| G3: Able to concentrate+ | −0.299** | 0.037 | −0.336 | −0.447, −0.248 |
| G4: Play a useful part+ | −0.243** | 0.045 | −0.288 | −0.394, −0.171 |
| G5: Able to face problems+ | −0.244** | −0.032 | −0.212 | −0.332, −0.099 |
| G6: Making decisions+ | −0.231** | −0.009 | −0.222 | −0.343, −0.104 |
| G7: Unable to overcome difficulties- | −0.252** | 0.005 | −0.257 | −0.369, −0.147 |
| G8: Reasonably happy+ | −0.192** | 0.011 | −0.203 | −0.328, −0.076 |
| G9: Enjoy day-to-day activities+ | −0.259** | −0.095* | −0.164 | −0.277, −0.060 |
| G10: Feeling unhappy- | −0.259** | 0.008 | −0.267 | −0.370, −0.166 |
| G11: Losing confidence- | −0.244** | 0.014 | −0.258 | −0.366, −0.159 |
| G12: Thinking of self as worthless- | −0.206** | −0.008 | −0.198 | −0.319, −0.075 |
Two-sided P < 0.01, * Two-sided P < 0.05. Items with “-” were the negatively worded items, scored “0-0-1-1” as the response options: “less than usual-no more than usual-more than usual-much more than usual”. Items with “+” were the positively worded items, scored “0-0-1-1” as the response options: “more than usual-same as usual-less than usual-much less than usual”.