Table 4.

Results of the Chain Mediating Effect with daytime sleepiness and depression as mediators between mobile phone addiction and suicidality

Path	Effect	SE	p	95% CI
MPA_T1(X) → DS_T2(M1) → Depression_T2(M2) → Suicidality_T2(Y)
Total effect of X on Y	0.289	0.024	< 0.001	0.242–0.336
Direct effect of X on Y	0.129	0.023	< 0.001	0.083–0.174
Indirect effect of X on Y(Total)	0.160	0.014	-	0.133–0.189
Indirect effect of X on Y(Via M1)	0.042	0.010	-	0.023–0.062
Indirect effect of X on Y(Via M2)	0.083	0.012	-	0.059–0.110
Indirect effect of X on Y(Via M1 → M2)	0.036	0.006	-	0.026–0.047
X → M1	0.316	0.026	< 0.001	0.265–0.367
M1 → Y	0.131	0.030	< 0.001	0.073–0.189
X → M2	0.218	0.027	< 0.001	0.162–0.271
M2 → Y	0.381	0.035	< 0.001	0.316–0.451
M1 → M2	0.295	0.029	< 0.001	0.238–0.353

Note. MPA Mobile phone addiction, DS Daytime sleepiness