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. 2022 Aug 12;22:1537. doi: 10.1186/s12889-022-13931-1

Table 5.

Stepwise regression of suicidal risk with age, gender, COVID-19 related exposure, daytime sleepiness, depressive symptoms, and MPAI in adolescents (N=1609)

Independent variable Step 1: Adjusted
R2=0.001
Step 2: Adjusted
R2= 0.003
Step 3: Adjusted
R2= 0.244
Step 4: Adjusted
R2= 0.259
Beta Beta Beta Beta
Age 0.019 0.019 0.021 0.021
Gender 0.026 0.025 0.006 0.004
Someone in the community is infected 0.010 0.008 0.011
A relative or friend is infected -0.037 -0.030 -0.035
A relative or friend died from the infection -0.025 -0.018 -0.019
Daytime sleepiness_T2 0.410*** 0.381***
Depression_T2 0.160*** 0.130***
MPAI_T1 0.130***

Abbreviations: MPA_T1 Time1 mobile phone addiction score, Daytime sleepiness _T2 Time 2 daytime sleepiness score, Depression_T2 Time 2 depression score

***p < 0.001