Table 5 Factors influencing quality of life (N = 198)

(Constant)

116.75

13.31

8.78

< 0.001

90.51

143.17

Age

-0.95

0.32

− 0.19

3.02

0.003

1.09

-1.57

-0.33

Subjective health status^a

10.77

3.26

0.21

3.27

0.001

1.09

4.22

17.06

Grade point average

2.82

2.61

0.07

1.08

0.281

1.07

-2.33

7.99

Chronotype^b

0.10

0.16

0.04

0.60

0.551

1.12

-0.22

0.42

Social jetlag

-0.69

0.27

− 0.17

2.51

0.013

1.19

-1.23

-0.15

Depression symptoms

-0.79

0.16

− 0.33

4.95

< 0.001

1.21

-1.11

-0.48

Adjusted R² = 0.278, F = 13.66 (p < .001)

Breusch-Pagan test (χ²  = 3.64, p = .726), Kolmogorov-Smirnov test (Z = 0.05, p = .788)