Developing a predictive tool for psychological well-being among Chinese adolescents in the presence of missing data

Table 1 Characteristics of Cohort of 2919 Shanghai Students

Variable	N	Mean (SD)/Percentage	Percent Missing^c
Age (years)	2915	11.9 (0.6)	0.1%
Male (%)	2918	53.3%	0.03%
CBCL	1188	13.6 (14.1)	59.3%
YSR	2129	24.4 (19.7)	27.1%
MHI	2110	173.5 (29.9)	27.7%
Psychosocial maladjustment ^a (%)	868	24.5%	70.3%
SIF Summary Scores ^b
What is your overall feeling towards your family?	2879		1.4%
1-3 (favorable)	2451	85.1%
4 (neutral)	291	10.1%
5-7 (not favorable)	137	4.8%
What is your overall feeling towards your school?	2869		1.7%
1-3 (favorable)	2311	80.5%
4 (neutral)	366	12.8%
5-7 (not favorable)	192	6.7%
What is your assessment of your health?	2872		1.6%
1-3 (favorable)	2575	89.7%
4 (neutral)	188	6.5%
5-7 (not favorable)	109	3.8%
What is your assessment of your social skills and social support environment?	2868		1.7%
1-3 (favorable)	2311	80.6%
4 (neutral)	396	13.8%
5-7 (not favorable)	161	5.6%

^a Psychosocial maladjustment defined as a gender specific score above the 95^th percentile on either the CBCL, YSR, or MHI multi-component scales
^b SIF summary scores are rated on an integer scale of 1 (most favorable) to 7 (least favorable)
^c Calculated as a percentage out of 2919

ISSN: 1471-2288