Table 1.

Demographics of subjects and their effect on study variables

Variable	N (%)	Depression		EAN		Neuroticism
		Mean±SD	F/t	Mean±SD	F/t	Mean±SD	F/t
Sex			5.454***		1.961		9.792***
Male	2,059 (51.6)	15.95±3.58		16.71±7.35		26.33±8.04
Female	1,934 (48.4)	16.59±3.88		16.25±7.45		28.88±8.37
Grade			2.704		16.736***		10.579***
One	1,800 (45.1)	16.23±3.78		16.73±7.37†§		27.71±8.52†§
Two	1,578 (39.5)	16.40±3.78		16.82±7.47‡§		27.94±8.28‡§
Three	615 (15.4)	15.99±3.50		14.90±7.08		26.17±7.51
Family economic status			85.869***		42.723***		35.557***
Good	1,505 (37.7)	15.55±3.62†‡		15.70±7.17†‡		26.51±8.52†‡
Fair	2,119 (53.1)	16.42±3.63‡§		16.50±7.25‡§		27.82±8.07‡§
Poor	369 (9.2)	18.28±4.05†§		19.64±8.30†§		30.42±7.89†§
One-child status			2.029		1.306		3.108**
Yes	2,359 (59.1)	16.16±3.71		16.36±7.34		27.23±8.31
No	1,634 (40.9)	16.41±3.79		16.67±7.48		28.06±8.26

Degrees of freedom=2.

^**p<0.01;

^***p<0.001;

^†significant group A;

^‡significant group B;

^§significant group C;

^†‡significant difference between group A and group B;

^†‡§indicate statistically significant differences between groups, post hoc analyses were used by least significant difference.

EAN, emotional abuse and neglect; SD, standard deviation