Investigating adolescent mental health of Chinese students during the COVID-19 pandemic: Multicenter cross-sectional comparative investigation

Table 2 The negative factors of the adolescents

Learning effects	Mean point [-1,1]	Disagree	Agree	Life influence	Mean point [-1,1]	Disagree	Agree
Increased parents’ monitoring				Distance from friends
All	0.073	20.1%	33.2%	All	-0.111	34.0%	23.0%
Primary school	0.165	17.5%	44.4%	Primary school	0.017	25.2%	32.2%
Junior high school	0.090	19.9%	34.0%	Junior high school	-0.204	42.6%	20.3%
Senior high school	-0.031	22.7%	21.6%	Senior high school	-0.134	33.0%	17.1%
Difficulty concentrating				Don't socialize with people
All	-0.098	34.3%	24.6%	All	-0.243	44.5%	14.6%
Primary school	-0.051	31.1%	27.6%	Primary school	-0.160	38%	18.3%
Junior high school	-0.185	42.2%	21.0%	Junior high school	-0.353	54.3%	12.7%
Senior high school	-0.051	28.9%	25.6%	Senior high school	-0.205	40.2%	13.1%
Worry about the future				Less entertainment
All	0.065	25.3%	37.1%	All	-0.02	27.1%	26.7%
Primary school	0.031	27.9%	34.4%	Primary school	0.076	21.1%	34.1%
Junior high school	0.101	25.8%	42.0%	Junior high school	-0.119	36.4%	21.9%
Senior high school	0.058	22.2%	34.5%	Senior high school	-0.005	22.9%	24.7%
Interference with academic performance				Reduce pocket money
All	0.108	23.4%	40.6%	All	-0.209	37.4%	11.1%
Primary school	0.072	26.1%	37.9%	Primary school	-0.192	34.9%	10.8%
Junior high school	0.160	23.3%	46.2%	Junior high school	-0.243	43.9%	13.9%
Senior high school	0.086	21.0%	37.1%	Senior high school	-0.187	33.0%	8.2%
Unable to adapt to online classes				Pay more attention to news reports
All	-0.057	31.3%	25.7%	All	0.236	11.9%	48.2%
Primary school	-0.027	30.5%	28.8%	Primary school	0.193	12.0%	45.0%
Junior high school	-0.092	35.6%	25.5%	Junior high school	0.236	14.7%	46.8%
Senior high school	-0.050	27.6%	22.9%	Senior high school	0.278	8.8%	52.7%
Feel an increase in homework				Change of living environment
All	-0.167	35.3%	14.4%	All	0.091	18.5%	35.1%
Primary school	-0.242	41.5%	10.8%	Primary school	0.119	15.9%	37.6%
Junior high school	-0.160	38.5%	18.8%	Junior high school	0.067	23.4%	34.3%
Senior high school	-0.105	26.0%	13.3%	Senior high school	0.090	15.7%	33.6%
				Less travel
				All	0.317	13.4%	53.7%
				Primary school	0.407	11.7%	60.9%
				Junior high school	0.258	17.4%	49.5%
				Senior high school	0.295	10.8%	51.4%
				Feel the traffic is inconvenient
				All	0.072	20.8%	32.2%
				Primary school	0.108	10.7%	35.3%
				Junior high school	0.030	26.6%	30.6%
				Senior high school	0.083	15.5%	31.1%
				Hospital care is harder
				All	0.145	18.5%	39.7%
				Primary school	0.205	17.1%	44.5%
				Junior high school	0.095	23.4%	37.7%
				Senior high school	0.142	14.6%	37.4%