Table 4. The significant results of Wilcoxon-Mann-Whitney test between high-score and low-score group on UCLA-LS.

	High loneliness score group			Low loneliness score group			Mann-Whitney U	Wilcoxon W	Z	P
	Median	Min	Max	Median	Min	Max
Total (incoming and outgoing) call	2.96	0.60	11.27	5.92	0.71	16.80	370.50	965.50	−2.55	0.011
Total call in the morning	0.94	0.00	9.64	1.43	0.06	5.16	394.00	989.00	−2.26	0.024
Total call in the afternoon	0.80	0.00	2.03	1.42	0.06	3.38	344.50	939.50	−2.86	0.004
Total call in the evening	1.24	0.00	5.26	2.40	0.29	11.43	362.00	957.00	−2.65	0.008
Incoming call	1.55	0.00	5.48	2.98	0.33	16.28	305.00	900.00	−3.35	0.001
Incoming call in the morning	0.52	0.00	2.17	0.89	0.00	4.11	321.50	916.50	−3.15	0.002
Incoming call in the afternoon	0.46	0.00	1.50	0.81	0.05	2.50	357.00	952.00	−2.71	0.007
Incoming call in the evening	0.50	0.00	3.38	1.42	0.05	12.23	314.00	909.00	−3.24	0.001
Incoming call from phone no. in contacts	0.91	0.00	4.87	1.78	0.03	9.55	373.50	968.50	−2.51	0.012
Incoming call from phone no. in contacts in the morning	0.30	0.00	1.91	0.44	0.00	4.05	407.50	1,002.50	−2.09	0.036
Incoming call from phone no. in contacts in the evening	0.31	0.00	2.35	0.84	0.00	3.83	354.50	949.50	−2.74	0.006
System apps use	104.88	0.00	1,597.95	16.81	0.00	245.90	314.00	909.00	−3.24	0.001
Beautify apps use	237.43	0.00	5,887.65	0.00	0.00	866.83	385.00	980.00	−2.52	0.012
Health apps use	0.00	0.00	29.50	0.00	0.00	0.00	510.00	1,105.00	−2.05	0.041
Browser apps use	10.42	0.00	1,151.40	4.07	0.00	89.12	416.00	1,011.00	−1.99	0.046
RenRen apps use	3.46	0.00	1,043.83	0.00	0.00	36.00	388.50	983.50	−2.60	0.009