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. 2025 Jul 7;25:1015. doi: 10.1186/s12909-025-07503-1

Table 6.

Highest individual question correlations with CVS, PSQI, and FSS

CVS Headache CVS Eye Pain FSS Causes frequent problems for me FSS Interferes with work, family, and social life
Global PSQI 0.425** 0.331** 0.432** 0.360**
p < 0.001 < 0.001 < 0.001 < 0.001
n 168 168 168 168
CVS Headache CVS Sensitivity to light PSQI Component 7, Trouble Staying Awake PSQI Component 5, Sleep Disturbances
FSS 0.428** 0.355** 0.568** 0.305**
p < 0.001 < 0.001 < 0.001 < 0.001
n 168 168 173 174
FSS Causes frequent problems for me FSS Interferes with work, family, and social life PSQI Component 7, Trouble Staying Awake PSQI Component 5, Sleep Disturbances
CVS 0.520** 0.433** 0.451** 0.345**
p < 0.001 < 0.001 < 0.001 < 0.001
n 177 177 173 174

**. Correlation is significant at the 0.001 level (2-tailed)