Table 3 Hierarchical multiple regression analysis: Effect of childhood SES and life satisfaction on depression symptoms

−1.153*** (−1.300, −1.005)

−0.670*** (− 0.827, − 0.512)

−0.524*** (− 0.681, − 0.366)

−0.422*** (− 0.576, − 0.267)

−0.401*** (− 0.555, − 0.247)

–

–

–

–

− 0.403*** (− 0.506, − 0.300)

Gender (Male = 0)

Female

2.228*** (2.028, 2.427)

1.810*** (1.600, 2.020)

1.898*** (1.689, 2.108)

1.418*** (1.193, 1.642)

1.422*** (1.198, 1.647)

Age (45 ~ = 0)

60~

0.386*** (0.163, 0.609)

0.119 (−0.109, 0.346)

0.072 (−0.157, 0.300)

− 0.206 (− 0.429, 0.018)

−0.143 (− 0.366, 0.080)

75~

−0.533*** (− 0.831, − 0.235)

−1.195*** (− 1.514, − 0.875)

−1.157*** (− 1.477, − 0.837)

−1.888*** (− 2.209, − 1.567)

−1.868*** (− 2.188, − 1.548)

Residence (Town = 0)

Rural

–

1.123*** (0.867, 1.379)

1.119*** (0.864, 1.374)

1.137*** (0.889, 1.386)

1.149*** (0.901, 1.398)

Education background (“Illiterate or semi-illiterate” = 0)

Primary school or home school

–

−0.553*** (− 0.820, − 0.286)

−0.552*** (− 0.818, − 0.287)

−0.310* (− 0.570, − 0.050)

−0.315* (− 0.575, − 0.056)

Middle school

–

−1.175*** (− 1.464, − 0.886)

−1.172*** (− 1.460, − 0.884)

−0.897*** (− 1.179, − 0.616)

−0.908*** (− 1.189, − 0.626)

High school or vocational school

–

−1.652*** (− 2.038, − 1.265)

−1.612*** (− 1.998, − 1.227)

−1.384*** (− 1.761, − 1.007)

−1.409*** (− 1.785, − 1.032)

University degree or above

–

−1.831*** (− 2.641, − 1.021)

−1.839*** (− 2.646, − 1.033)

−1.402*** (− 2.188, − 0.616)

−1.411*** (− 2.196, − 0.626)

Marital status (“No spouse” = 0)

Have a spouse

–

− 0.962*** (− 1.258, − 0.667)

−0.966*** (− 1.259, − 0.673)

−0.734*** (− 1.020, − 0.448)

−0.672*** (− 0.958, − 0.386)

Social interaction support (No = 0)

Yes

–

− 0.398*** (− 0.602, − 0.194)

− 0.468*** (− 0.671, − 0.265)

−0.238* (− 0.437, − 0.039)

−0.206* (− 0.405, − 0.007)

Childhood parental quarrels (Never = 0)

Rarely

–

–

0.318* (0.069, 0.567)

0.295* (0.050, 0.539)

0.270* (0.026, 0.514)

Sometimes

–

–

0.708*** (0.387, 1.029)

0.670*** (0.357, 0.984)

0.632*** (0.319, 0.946)

Often

–

–

0.850** (0.310, 1.390)

0.802** (0.281, 1.322)

0.735** (0.216, 1.255)

Childhood parental violence (Never = 0)

Rarely

–

–

0.739*** (0.413, 1.066)

0.677*** (0.360, 0.994)

0.665*** (0.349, 0.981)

Sometimes

–

–

1.137*** (0.670, 1.603)

0.996*** (0.547, 1.446)

0.964*** (0.516, 1.413)

Often

–

–

1.731*** (0.830, 2.632)

1.617*** (0.747, 2.486)

1.589*** (0.720, 2.458)

Childhood famine (No = 0)

Yes

–

–

1.272*** (0.993, 1.550)

1.112*** (0.841, 1.383)

1.122*** (0.851, 1.392)

ADL (No = 0)

Yes

–

–

2.248*** (1.995, 2.502)

2.073*** (1.816, 2.330)

Sleep at night (“< 7 h” = 0)

7 ~ 8 h

–

–

–

− 2.405*** (−2.614, −2.196)

−2.374*** (− 2.583, − 2.165)

> 8 h

–

–

–

− 2.544*** (− 2.880, − 2.208)

−2.537*** (− 2.873, − 2.201)

Alcohol consumption (No = 0)

Yes

–

–

–

−0.505*** (−0.733, −0.276)

−0.484*** (− 0.712, − 0.256)