Table 2.

Descriptive statistics of influence factors.

Influence factors	Anxiety					Depression
	NO		Yes		P-value	No		Yes		P-value
School regulation
School reopening
Yes	397	85.40%	68	14.60%	F-P	314	67.50%	151	32.50%	F-P
No	7	53.80%	6	46.20%	0.008	9	69.20%	4	30.80%	0.58
Wearing masks routinely
Yes	246	84.80%	44	15.20%	C-P	202	69.70%	88	30.30%	C-P
No	158	84.00%	30	16.00%	0.817	121	64.40%	67	35.60%	0.227
Taking temperature routinely
Yes	339	84.30%	63	15.70%	C-P	267	66.40%	135	33.60%	C-P
No	65	85.50%	11	14.50%	0.791	56	73.70%	20	26.30%	0.215
Several areas in school closed due to COVID-19 (136 reported not sure)
Yes	135	82.80%	28	17.20%	C-P	101	62.00%	62	38.00%	C-P
No	149	83.20%	30	16.80%	0.918	132	73.70%	47	26.30%	0.02
Taking the final examination after school reopening
Yes	237	86.80%	36	13.20%	C-P	190	69.60%	83	30.40%	C-P
No	167	81.50%	38	18.50%	0.11	133	64.90%	72	35.10%	0.275
Retaining holiday (119 reported not sure)
Yes	100	86.20%	16	13.80%	C-P	80	69.00%	36	31.00%	C-P
No	200	82.30%	43	17.70%	0.351	165	67.90%	78	32.10%	0.839
Availability of package delivery (28 reported not sure)
Yes	313	86.50%	49	13.50%	C-P	244	67.40%	118	32.60%	C-P
No	68	77.30%	20	22.70%	0.032	60	68.20%	28	31.80%	0.889
Take-out availability (31 reported not sure)
Yes	41	67.20%	20	32.80%	C-P	36	59.00%	25	41.00%	C-P
No	335	86.80%	51	13.20%	<0.001	264	68.40%	122	31.60%	0.147
Lockdown restriction (19 reported not sure)
Yes	364	85.60%	61	14.40%	C-P	287	67.50%	138	32.50%	C-P
No	23	67.60%	11	32.40%	0.005	22	64.70%	12	35.30%	0.736
Quarantine of classmates
Yes	51	75.00%	17	25.00%	C-P	36	52.90%	32	47.10%	C-P
No	353	86.10%	57	13.90%	0.019	287	70.00%	123	30.00%	0.005
Self-quarantine after school reopening
Yes	9	47.40%	10	52.60%	C-P	7	36.80%	12	63.20%	C-P
No	395	86.10%	64	13.90%	<0.001	316	68.80%	143	31.20%	0.003
Family situation
Having relatives or friends who have been infected
Yes	4	50.00%	4	50.00%	F-P	2	25.00%	6	75.00%	F-P
No	400	85.10%	70	14.90%	0.023	321	68.30%	149	31.70%	0.016
The degree of family economic status influenced by COVID-19 (1 for little, 5 for much)
1	136	94.40%	8	5.60%		110	76.40%	34	23.60%
2	87	74.40%	30	25.60%	S	71	60.70%	46	39.30%	S
3	119	88.10%	16	11.90%	0.066	90	66.70%	45	33.30%	0.06
4	35	70.00%	15	30.00%	p	31	62.00%	19	38.00%	p
5	27	84.40%	5	15.60%	0.004	21	65.60%	11	34.40%	0.053
Personal living style
Exercise frequency (past 1 week)
nearly 0 time	87	82.10%	19	17.90%		62	58.50%	44	41.50%
1 time	79	78.20%	22	21.80%	S	64	63.40%	37	36.60%	S
2 times	89	88.10%	12	11.90%	−0.046	69	68.30%	32	31.70%	−0.092
3 times	45	83.30%	9	16.70%	p	41	75.90%	13	24.10%	p
more than 4 times	104	89.70%	12	10.30%	0.045	87	75.00%	29	25.00%	0.002
Alcohol use (past 2 week)
nearly 0 time	314	88.00%	43	12.00%		251	70.30%	106	29.70%
1 time	52	76.50%	16	23.50%	S	42	61.80%	26	38.20%	S
2 times	18	66.70%	9	33.30%	0.124	16	59.30%	11	40.70%	0.102
3 times	9	64.30%	5	35.70%	p	7	50.00%	7	50.00%	p
more than 4 times	11	91.70%	1	8.30%	0.002	7	58.30%	5	41.70%	0.03
Self-rating sleep quality (1 for very poor, 5 for very good)
1	39	81.30%	9	18.80%		29	60.40%	19	39.60%
2	58	73.40%	21	26.60%	S	45	57.00%	34	43.00%	S
3	94	81.70%	21	18.30%	−0.089	70	60.90%	45	39.10%	−0.147
4	96	86.50%	15	13.50%	p	69	62.20%	42	37.80%	p
5	117	93.60%	8	6.40%	<0.001	110	88.00%	15	12.00%	<0.001
Satisfaction of living conditions in school (1 for very unsatisfied, 5 for very satisfied)
1	52	85.20%	9	14.80%		43	70.50%	18	29.50%
2	83	80.60%	20	19.40%	S	69	67.00%	34	33.00%	S
3	110	78.00%	31	22.00%	−0.059	82	58.20%	59	41.80%	−0.043
4	81	89.00%	10	11.00%	p	64	70.30%	27	29.70%	p
5	78	95.10%	4	4.90%	0.005	65	79.30%	17	20.70%	0.141

F-P, P-value of Fisher's test; C-P, P-value of the Chi-square test; S, Somer's d; p, P-value of Somer's d.