Table 3 Univariate and multivariate logistic regression analysis for high depressive symptomatology in male adolescents

Rural areas

0.439

0.932 (0.781 ~ 1.113)

Age

0.009*

1.129 (1.031 ~ 1.236)

1.145 (1.034 ~ 1.266)

Boarding status

0.328

1.095 (0.913 ~ 1.315)

Key class

0.030*

1.220 (1.020 ~ 1.461)

1.206 (0.994 ~ 1.464)

Three generational household

0.627

0.949 (0.770 ~ 1.171)

Single parent family

<  0.001*

1.801 (1.386 ~ 2.342)

1.734 (1.327 ~ 2.265)

Current caregivers

0.783

 Parents

1.00

 Grandparents

0.546

0.928 (0.728 ~ 1.182)

 Other relatives

0.758

1.089 (0.634 ~ 1.871)

Sibling children

0.938

0.993 (0.831 ~ 1.186

Left behind types

0.072

 Un-left-behind

1.00

1.00

 Father absent

0.035*

1.473 (1.027 ~ 2.112)

1.436 (0.996 ~ 2.071)

 Mother absent

0.115

1.549 (0.899 ~ 2.669)

1.462 (0.838 ~ 2.550)

 Both absent

0.260

1.128 (0.915 ~ 1.392)

1.225 (0.978 ~ 1.534)

Father’s education level

0.883

 Primary School and Below

1.00

 Junior middle school

0.824

0.965 (0.704 ~ 1.322)

 Senior middle school

0.611

0.918 (0.661 ~ 1.275)

 College degree and above

0.950

1.011 (0.731 ~ 1.397)

Mother’s education level

0.928

 Primary School and Below

1.00

 Junior middle school

0.942

0.991 (0.770 ~ 1.275)

 Senior middle school

0.907

0.984 (0.754 ~ 1.285)

 College degree and above

0.651

1.062 (0.818 ~ 1.380)

Physical activity

<  0.001*

0.666 (0.539 ~ 0.822)

0.632 (0.509 ~ 0.783)

Birth order

964

 Only children

1.00

 Eldest children

0.692

0.952 (0.747 ~ 1.214)

 Middle children

0.978

0.996 (0.732 ~ 1.355)

 Youngest children

0.840

1.023 (0.823 ~ 1.271)

Having younger brother(s)

0.749

0.964 (0.772 ~ 1.204)

Having younger sister(s)

0.635

1.061 (0.832 ~ 1.353)

Having elder brother(s)

0.734

1.043 (0.817 ~ 1.333)

Having elder sister(s)

0.954

1.006 (0.825 ~ 1.226)