Table 8 Multivariate multiple regression results for covariates of quality of life domains

−0.14

−0.09

−0.06

−0.05

Age in years

(−0.22, −0.06)

(−0.18, 0.002)

(−0.17, 0.04)

(−0.13, 0.04)

3.19

0.0133*

Sex

***

**

***

*

 Female

Ref

Ref

Ref

Ref

 Male

4.08(2.15, 6.01)

2.93(0.68, 5.17)

5.66(3.09, 8.22)

2.22(0.16, 4.28)

6.14

0.0001***

Marital status:

***

 Single

Ref

Ref

Ref

Ref

 Married

0.45(−1.59, 2.48)

−1.73(−4.10, 0.63)

−5.68(−8.38, −2.98)

−2.18(−4.35, −0.02)

5.08

0.0005***

Proximity

***

*

*

**

 Close

Ref

Ref

Ref

Ref

 Far

−5.88(−8.10, −3.66)

−3.01(−5.59, −0.43)

−3.57(−6.52, −0.63)

−3.66(−6.02, −1.30)

6.68

0.0001***

Education

***

***

*

***

 None

Ref

Ref

Ref

Ref

 Primary/junior high school

2.20(−1.00, 5.40)

3.59(−0.13, 7.31)

6.79(2.54, 11.05)

5.24(1.83, 8.65)

 Secondary

3.02(−0.24, 6.29)

5.12(1.33, 8.91)

5.23(0.90, 9.57)

6.53(3.06, 10.01)

 Tertiary

7.05(3.32, 10.79)

11.04(6.69, 15.38)

9.81(4.84, 14.77)

14.55(10.57, 18.53)

12.03

0.0001***

 None

Ref

Ref

Ref

Ref

 Private

2.41(−1.18, 6.01)

0.07(−4.11, 4.25)

−1.61(−6.39, 3.16)

1.49(−2.35, 5.32)

 Public

1.12(−2.86, 5.11)

−1.79(−6.42, 2.84)

−5.02(−10.32, 0.27)

−1.26(−5.50,2.99)

 Self-employed

2.81(0.06, 5.56)

1.57(−1.63, 4.76)

−0.90(−4.55, 2.75)

2.86(−0.07, 5.79)

 Student/apprentice

−2.91(−8.85, 3.03)

−1.61(−8.51, 5.30)

−5.36(−13.25, 2.53)

1.51(−4.82, 7.84)

1.38

0.2412

Direct cost

−0.003(−0.01, 0.005)

−0.005(−0.014, 0.004)

−0.0008(−0.01, 0.01)

−0.003(−0.01, 0.01)

0.35

0.8468

Indirect cost

0.0001(−0.005, 0.005)

−0.007(−0.01, −0.001)

−0.001(−0.01, 0.01)

−0.004(−0.01, 0.001)

1.46

0.2151

***

***

Zarit

−0.25(−0.38, −0.13)

−0.27(−0.42, −0.12)

−0.06(−0.23, 0.11)

−0.10(−0.23, 0.04)

5.30

0.0004***

Duration of care given

−0.003(−0.013, 0.007)

−0.004(−0.02, 0.01)

0.01(−0.01, 0.02)

0.002(−0.01, 0.01)

0.85

0.4931

Daily care given time in hrs

0.14(−0.16, 0.44)

0.17(−0.18, 0.52)

0.002(−0.40, 0.40)

0.27(−0.05, 0.59)

0.63

0.6409

Other family

*

**

 No

Ref

Ref

Ref

Ref

 Yes

2.38(0.47, 4.29)

2.90(0.68, 5.12)

−2.33(−4.87, 0.20)

0.56(−1.48, 2.59)

6.24

0.0001***

Anxiety

**

 Normal

Ref

 Moderate

0.13(−2.22, 2.47)

1.29(−1.43, 4.01)

0.07(−3.04, 3.18)

0.74(−1.75, 3.24)

 Severe

−2.80(−6.48, 0.87)

5.12(0.84, 9.39)

−0.18(−5.06, 4.70)

3.60(−0.31, 7.52)

4.06

0.0030**

Depression

***

***

***

***

 Normal

Ref

Ref

Ref

Ref

 Moderate

−2.73(−5.00, −0.47)

−6.02(−8.66, −3.39)

−3.30(−6.31, −0.29)

−5.11(−7.52, −2.70)

 Severe

−8.39(−13.15, −3.64)

−17.39(−22.92, −11.87)

−12.29(−18.60, −5.97)

−16.40(−21.47, −11.34)

19.20

0.0001***

Stress

**

 Normal

Ref

Ref

Ref

Ref

 Moderate

2.46(−0.45, 5.36)

3.04(−0.34, 6.41)

0.30(−3.56, 4.15)

2.34(−0.76, 5.44)

 Severe

−2.44(−6.48, 1.60)

−1.26(−5.96, 3.44)

−10.43 (−15.80, −5.06)

−1.33(−5.64, 2.988)

3.73

0.0054**

  R ²

68.5

69.8

64.3

67.2