Chinese Translation and Psychometric Testing of the Simplified Version of Social Support Scale for Physical Activity

Figures & data

Table 1 Socio-Demographic Characteristics of the Sample

Variables		M ± SD /N (%)
Age		37.54 ± 15.39
	18–29	117 (43.98)
	30–39	46 (17.29)
	40–59	71 (26.69)
	60–100	32 (12.03)
Gender	Male	80 (30.08)
	Female	186 (69.92)
Marital status^&	Not married	131 (49.25)
	Married	135 (50.75)
Education	Primary and below	37 (13.91)
	Middle and high	76 (28.57)
	College and above	153 (57.52)
Employment	Unemployed	111 (41.73)
	Employed	155 (58.27)
	Else (divorced/separated/widowed)
Income^#	≤2000	33 (12.41)
	2001–3000	53 (19.92)
	3001–4500	76 (28.57)
	4501–6000	44 (16.54)
	>6000	60 (22.56)

Notes: ^&For marital status, not married includes single/divorced/separate/widowed, married includes married and cohabited. ^#Income means family monthly income in Chinese currency of Renminbi (RMB) with the unit of Yuan/month.

Table 2 Comparison of Model Fit Statistics of Single-Factor Model and Two-Factor Model of the SSSPH-SC by Confirmatory Factor Analysis^#

Model	χ2/df	CFI	TLI	RMSEA	SRMR
Criteria	<3	>0.90	>0.90	<0.08	<0.10
Single-factor model	5.02	0.85	0.76	0.12	0.08
Two-factor model	2.45	0.98	0.97	0.07	0.03

Note: ^#Two-factor model: family support and friend support.

Abbreviations: SSSPH-SC, simplified Chinese version of social support for physical activity; χ2/df, ratio of chi-square to degrees of freedom; CFI, comparative fit index; TLI, Tucker-Lewis index; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual.

Table 3 Descriptive Statistics and Factor Loadings of All 6 Items of the SSSPH-SC by Confirmatory Factor Analysis

Items	Mean (SD)	Factor Loading
Factor 1: Family support (α = 0.80)
1. My family exercised with me	2.23 (0.91)	0.71
2. My family offered to exercise with me	2.29 (0.96)	0.80
3. My family gave me encouragement to stick with my exercise program.	2.57 (0.91)	0.83
Factor 2: Friend support (α = 0.84)
4. My friends exercised with me	2.65 (0.97)	0.74
5. My friends offered to exercise with me	2.55 (0.96)	0.85
6. My friends gave me encouragement to stick with my exercise program.	2.82 (0.96)	0.87
Correlation between Factor 1 and Factor 2	0.60

Table 4 Correlations of SCESS-6 and Its Two Subscales with Other Variables

Variables	Mean ± SD	1	2	3	4	5	6
1. SCESS-6	15.11 ± 4.17	1
2. Family support	7.09 ± 2.34	0.83***	1
3. Friend support	8.02 ± 2.60	0.86***	0.60***	1
4. Social support	40.21 ± 7.32	0.26***	0.24***	0.20**	1
5. Quality of life	89.66 ± 9.22	0.25***	0.16*	0.26***	0.24***	1
6. Self-rated health	3.61 ± 0.92	0.23***	0.13*	0.25***	0.03	0.35***	1

Notes: *P < 0.05, **P < 0.01, ***P < 0.001.