Table 2 Generalized linear mixed effect model of overall usage

Intercept

 Age

  20-24

0.12

2.69

0.77 – 9.50

0.26

2.18

0.56 – 8.50

0.55

0.58

0.09 – 3.52

0.83

1.21

0.21 – 7.0

  25-29

0.57

0.84

0.46 – 1.53

0.60

1.17

0.65 – 2.10

<0.05*

0.33

0.13 – 0.84

0.33

0.63

0.25 – 1.60

  30-34

Ref.

Ref.

Ref.

Ref.

  35-39

0.34

1.40

0.70 – 2.83

0.22

1.57

0.77 – 3.18

0.29

1.72

0.64 – 4.59

< 0.05*

3.86

1.20 – 12.36

  > 40

0.81

1.15

0.36 – 3.67

0.49

0.60

0.14 – 2.53

0.99

1.01

0.22 – 4.72

0.63

0.66

0.12 – 3.53

 Marital status

  Married

Ref.

Ref.

Ref.

Ref.

  Not married

0.35

1.28

0.77 – 2.14

0.32

1.90

0.95 – 2.71

0.74

1.14

0.53 – 2.44

0.40

0.72

0.64 – 3.07

  Single

0.17

2.27

0.70 – 7.35

0.07

1.60

0.53 – 6.86

0.87

1.14

0.24 – 5.33

0.80

0.77

0.18 – 9.05

 Occupational status

  Employed

Ref.

Ref.

Ref.

Ref.

  Unemployed

0.73

0.84

0.31 – 2.27

0.45

0.66

0.23 – 1.92

0.30

2.80

0.41 – 19.14

0.54

1.72

0.30 – 10.0

  Sick leave or leave

0.54

0.72

0.26 – 2.03

0.32

0.57

0.19 – 1.74

0.73

0.77

0.17 – 3.38

0.84

1.20

0.22 – 6.64

  Studying

0.05*

2.23

1.06 – 4.71

< 0.05*

2.34

1.11 – 4.97

< 0.05*

6.30

1.94 – 20.23

< 0.05*

3.74

1.14 – 12.33

 Parity

  Nullipara

Ref.

Ref.

Ref.

Ref.

  Primipara

0.65

0.88

0.52 – 1.51

< 0.05*

0.33

0.18 – 0.59

0.74

0.87

0.38 – 1.98

< 0.05*

0.26

0.11 – 0.61

  Multipara

0.63

0.83

0.38 – 1.80

< 0.05*

0.15

0.05 – 0.44

0.24

0.47

0.13 – 1.65

< 0.05*

0.09

0.02 – 0.43

 Care level

  Regular

Ref.

Ref.

Ref.

Ref.

  Extended

0.57

1.20

0.65 – 2.17

0.43

1.28

0.69 – 2.38

0.99

1

0.42 – 2.34

0.33

1.60

0.62 – 4.06

 Region

  Capital region of Denmark

Ref.

Ref.

Ref.

Ref.

  Region Zealand

0.09

1.63

0.93 – 2.85

0.10

1.63

0.92 – 2.89

< 0.05*

2.77

1.18 – 6.48

< 0.05*

4.63

1.68 – 12.69

 Nurse or midwife

  Nurse

Ref.

Ref.

Ref.

Ref.

  Midwife

0.24

0.26

0.03 – 2.41

0.73

1.26

0.33 – 4.85

1.00

∞

1.00

∞

  Nurse + midwife

0.28

0.60

0.24 – 1.51

0.46

0.72

0.31 – 1.70

0.38

0.58

0.18 – 1.94

0.80

0.84

0.20 – 3.44

  No nurse or midwife

0.06

0.53

0.27 – 1.03

< 0.05*

0.32

0.15 – 0.68

< 0.05*

0.22

0.07 – 0.68

<0.05*

0.07

0.01 – 0.34

 Practice type

  GP partnership

Ref.

Ref.

Ref.

Ref.

  Solo GP sharing facilities

0.08

0.59

0.33 – 1.07

< 0.05*

0.50

0.26 – 0.93

0.66

0.80

0.30 – 2.13

0.42

0.62

0.19 – 1.98

  Solo GP practice

0.46

0.69

0.26 – 1.86

0.26

0.54

0.19 – 1.55

0.71

1.40

0.24 – 8.42

0.44

2.39

0.26 – 21.79

 HADS-A

  0-7

Ref.

Ref.

Ref.

Ref.

  8-10

0.40

1.42

0.63 – 3.19

0.38

1.46

0.62 – 3.44

0.67

1.28

0.40 – 4.20

0.13

2.36

0.77 – 7.23

  < 10

0.23

2.14

0.62 – 7.40

0.37

1.84

0.49 – 6.92

< 0.05*

7.85

1.26 – 48.54

0.13

6.36

0.57 – 71.74

 HADS-D

  0-7

Ref.

Ref.

Ref.

Ref.

  8-10

0.14

5.20

0.60 – 45.32

< 0.05*

9.87

1.20 – 81.04

0.40

2.80

0.25 – 31.58

0.21

5.31

0.38 – 74.07

  > 10

0.40

2.08

0.37 – 11.62

0.61

1.63

0.25 – 10.67

0.61

0.49

0.03 – 8.07

0.45

0.33

0.02 – 5.76

 ACE

  < 4

Ref.

Ref.

Ref.

Ref.

  > 4

0.28

1.38

0.77 – 2.44

0.44

0.77

0.80 – 1.07

0.64

1.21

0.54 – 2.75

0.22

0.57

0.23 – 1.40

 RLEQ

  Life events

0.69

0.97

0.86 – 1.11

0.91

0.99

0.88 – 1.12

0.85

1.02

0.83 – 1.26

0.88

0.98

0.80 – 1.21

  Events that still affects the individual

0.75

0.96

0.75 – 1.22

0.51

1.07

0.87 – 1.32

0.30

0.81

0.54 – 1.20

0.94

0.99

0.68 – 1.44

 P-PRFQ

0.32

0.86

0.64 – 1.16

0.87

0.97

0.71 – 1.33

0.52

0.88

0.58 – 1.31

0.81

0.95

0.61 – 1.47