Combined Patterns Of Physical Activity And Screen-Related Sedentary Behavior Among Chinese Adolescents And Their Correlations With Depression, Anxiety And Self-Injurious Behaviors

Figures & data

Figure 1 Profiles of the four MVPA/SSB classes. Proportions for the latent classes were based on estimated posterior probabilities.

Class 1, low MVPA/low SSB group (26.7%); Class 2, high MVPA/low SSB group (64.7%); Class 3, low MVPA/high SSB group (4.8%); Class 4, low MVPA/moderate SSB group (3.9%); MVPA, moderate to vigorous physical activity; SSB, screen-related sedentary behavior; Red line: Class 1; blue line: Class 2; green line: Class 3; black line: Class 4.

Table 1 Socio-Demographic Differences By Latent Class MVPA/SSB Behaviors Group

	Total (n = 13,163)	high MVPA/low SSB (n=7,983)	low MVPA/low SSB (n=4,189)	low MVPA/high SSB (n=518)	low MVPA/moderate SSB (n=473)	p
Age, Mean (SD) (33^M)	15.20 (1.89)	15.29 (1.92)	15.10 (1.84)	14.99 (1.73)	14.70 (1.84)	<0.001 (a>b,c,d; b>d)
Female, OR (95% CI) (57 ^M)		1.00	0.65(0.61–0.70)	0.43(0.36–0.52)	0.60(0.49–0.72)	Adjusted age
BMI, Mean (SD) (1022^M)	19.62(3.34)	19.53(3.21)	19.74(3.48)	19.84(3.67)	19.73(3.80)	0.001 (a<b)
SES, Mean (SD) (789^M)	6.42(1.59)	6.46(1.60)	6.41(1.54)	6.13(1.65)	6.07(1.61)	<0.001 (a>c,d; b>c,d)
Senior grads respondents (10, 11, 12grade), OR (95% CI) (47 ^M)		1.00	0.79(0.73–0.85)	0.76(0.64–0.91)	0.56(0.46–0.68)	Adjusted gender
Only child, OR (95% CI) (867^M)		1.00	1.04(0.96–1.13)	0.99(0.81–1.21)	1.17(0.95–1.44)	Adjusted gender
Intactness of parents’ marriage, OR (95% CI) (310^M)		1.00	0.91(0.79–1.05)	0.53(0.41–0.70)	0.49(0.38–0.65)	Adjusted gender
High level of paternal education, OR (95% CI) (2609^M)		1.00	1.10(1.01–1.19)	0.78(0.64–0.97)	0.85(0.69–1.05)	Adjusted gender
High level of Maternal education, OR (95% CI) (2686^M)		1.00	1.09(1.00–1.18)	0.76(0.61–0.94)	0.91(0.73–1.13)	Adjusted gender
High level of family income, OR (95% CI) (1575^M)		1.00	0.89(0.82–0.97)	0.75(0.61–0.91)	0.70(0.56–0.86)	Adjusted gender

Abbreviations: MVPA, moderate to vigorous physical activity; SSB, Screen-based sedentary behavior; BMI, body mass index; SES, socioeconomic status; SES, subjective economic status, was considered as continuous variables (ranging from 1-the worst, to 10-the best); a, Class1, high MVPA/low SSB; b, Class2, low MVPA/low SSB; c, Class3, low MVPA/high SSB; d, Class4, low MVPA/moderate SSB; M, missing data.

Table 2 Differences In Psychological Problems (M±SD) By Latent Classes Of MVPA/SSB In Boys

	Total (N=6,624)	high MVPA/low SSB (n=3,646)	low MVPA/low SSB (n=2,359)	low MVPA/high SSB (n=343)	low MVPA/moderate SSB (n=276)	P
Depression	16.71(9.09)	16.64 (9.17)	16.40(8.77)	19.18(9.95)	17.37(9.22)	<0.001(1,2<3)
Anxiety (total)	33.18(20.09)	32.9 8(20.10)	32.75(19.53)	36.61(22.91)	35.27(20.69)	0.004(1,2<3)
Physical symptoms	7.80(6.78)	7.70(6.75)	7.60(6.56)	9.52(7.86)	8.71(7.24)	<0.001(1,2<3)
Social anxiety	9.22(6.35)	9.25(6.42)	9.06(6.22)	9.72(6.58)	9.58(6.20)	0.260
Harm avoidance	10.13(5.23)	10.15(5.23)	10.10(5.14)	10.03(5.94)	10.16(5.12)	0.973
Separation anxiety	6.08(4.69)	5.96(4.66)	6.04(4.57)	7.14(5.46)	6.86(5.02)	<0.001(1,2<3; 1<4)
Self-injurious behavior	6.10(2.24)	6.08(2.23)	6.00(2.10)	6.62(2.90)	6.45(2.41)	<0.001(1,2<3; 2<4)

Abbreviations: MVPA, moderate to vigorous physical activity; SSB, Screen-based sedentary behavior.

Table 3 Differences In Psychological Problems (M±SD) By Latent Classes Of MVPA/SSB In Girls

	Total (N=6,495)	high MVPA/low SSB (n=4303)	low MVPA/low SSB (n=1822)	low MVPA/high SSB (n=175)	low MVPA/moderate SSB (n=195)	p
Depression	17.78(9.31)	17.43(9.29)	18.22(9.20)	20.69(9.91)	18.66(9.41)	<0.001(1<2,3; 2<3)
Anxiety total	40.54(19.57)	40.24(19.55)	41.21(19.17)	42.50(22.52)	39.23(20.75)	0.130
Physical symptoms	9.53(6.86)	9.34(6.75)	9.87(6.93)	10.74(8.09)	9.56(7.38)	0.006(1<2)
Social anxiety	11.18(6.21)	11.12(6.27)	11.30(6.04)	11.95(6.42)	10.73(6.39)	0.217
Harm avoidance	11.77(4.88)	11.80(4.90)	11.80(4.78)	11.75(5.62)	10.89(4.69)	0.095
Separation anxiety	8.31(4.91)	8.23(4.89)	8.48(4.87)	8.58(5.47)	8.15(5.19)	0.297
Self-injurious behavior	6.44(2.63)	6.36(2.54)	6.52(2.73)	7.41(3.22)	6.61(2.76)	<0.001(1,2<3)

Abbreviations: MVPA, moderate to vigorous physical activity; SSB, Screen-based sedentary behavior.