Table 2 Odds ratios from the 5-class traj models

Group

2: Medium trajectory group

2: Medium-increasing trajectory group

Group 2: Medium trajectory group

Female ^a

1.08

0.94–1.24

0.282

13.68

10.51–17.81

0.000

0.63

0.55–0.73

0.000

Non-binary or Questioning ^a

2.58

0.63–10.48

0.187

27.32

4.68–159.39

0.000

0.42

0.17–1.01

0.053

Ethnicity - Asian ^b

0.77

0.63–0.93

0.006

0.50

0.35–0.71

0.000

1.19

0.96–1.47

0.105

Ethnicity - Black ^b

0.82

0.63–1.06

0.132

0.22

0.14–0.34

0.000

1.87

1.29–2.72

0.001

Ethnicity - Mixed ^b

0.78

0.56–1.08

0.130

0.58

0.36–0.92

0.021

1.02

0.71–1.45

0.929

Ethnicity - Other ^b

0.81

0.57–1.16

0.260

0.52

0.28–0.95

0.033

1.56

0.98–2.51

0.063

Free school meal eligibility (yes) ^c

1.42

1.22–1.66

0.000

1.53

1.23–1.91

0.000

1.87

1.58–2.21

0.000

Special education need (yes) ^d

1.89

1.42–2.51

0.000

1.49

1.02–2.17

0.037

1.87

1.36–2.56

0.000

Child in need status (yes) ^e

1.10

0.76–1.59

0.605

0.74

0.47–1.18

0.210

1.15

0.75–1.76

0.513

Group

3: Medium-increasing trajectory group

3: Medium trajectory group

3: Medium/high-decreasing trajectory group

Female ^a

2.45

2.01–3.00

0.000

2.56

2.07–3.18

0.000

0.31

0.26–0.37

0.000

Non-binary or Questioning ^a

14.67

4.11–52.32

0.000

1.27

0.13–12.40

0.838

0.40

0.15–1.05

0.061

Ethnicity - Asian ^b

0.32

0.23–0.45

0.000

1.01

0.76–1.33

0.969

0.64

0.48–0.86

0.003

Ethnicity - Black ^b

0.30

0.18–0.49

0.000

0.49

0.36–0.66

0.000

1.72

1.16–2.55

0.007

Ethnicity - Mixed ^b

0.69

0.46–1.03

0.072

0.79

0.53–1.18

0.251

0.86

0.57–1.30

0.465

Ethnicity - Other ^b

0.58

0.36–0.94

0.028

0.95

0.58–1.55

0.822

1.31

0.80–2.14

0.287

Free school meal eligibility (yes) ^c

2.25

1.86–2.72

0.000

1.28

1.05–1.56

0.014

3.43

2.86–4.12

0.000

Special education need (yes) ^d

2.29

1.64–3.22

0.000

1.38

1.01–1.87

0.043

3.10

2.27–4.22

0.000

Child in need status (yes) ^e

1.30

0.85–1.98

0.220

0.75

0.51–1.12

0.160

1.93

1.27–2.92

0.002

Group

4: Medium-decreasing trajectory group

4: High-decreasing trajectory group

4: Medium-increasing trajectory group

Female ^a

0.78

0.66–0.93

0.005

3.27

2.45–4.37

0.000

0.66

0.49–0.89

0.000

Non-binary or Questioning ^a

2.75

0.67–11.34

0.161

1.91

0.15–24.51

0.618

2.63

1.01–6.88

0.007

Ethnicity - Asian ^b

0.43

0.34–0.55

0.000

1.02

0.74–1.40

0.909

0.65

0.38–1.11

0.673

Ethnicity - Black ^b

0.54

0.40–0.73

0.000

0.37

0.25–0.55

0.000

1.17

0.57–2.38

0.974

Ethnicity - Mixed ^b

0.65

0.45–0.94

0.022

0.52

0.29–0.91

0.023

1.59

0.92–2.77

0.115

Ethnicity - Other ^b

0.80

0.55–1.16

0.236

1.13

0.67–1.88

0.648

0.93

0.35–2.48

0.098

Free school meal eligibility (yes) ^c

2.32

1.98–2.72

0.000

1.59

1.27–1.98

0.000

3.44

2.53–4.68

0.877

Special education need (yes) ^d

4.17

3.24–5.38

0.000

3.31

2.45–4.48

0.000

2.75

1.74–4.34

0.000

Child in need status (yes) ^e

1.53

1.09–2.16

0.014

0.86

0.56–1.34

0.513

1.56

0.82–2.95

0.000

Group

5: High-stable trajectory group

5: High trajectory group

5: High-slightly-decreasing trajectory group

Female ^a

1.59

1.35–1.89

0.000

18.78

14.59–24.17

0.000

0.30

0.24–0.38

0.000

Non-binary or Questioning ^a

7.54

1.96–29.06

0.003

31.69

5.12–196.28

0.000

0.22

0.04–1.10

0.066

Ethnicity - Asian ^b

0.11

0.07–0.18

0.000

0.27

0.18–0.40

0.000

0.32

0.20–0.54

0.000

Ethnicity - Black ^b

0.18

0.11–0.29

0.000

0.15

0.10–0.23

0.000

1.70

1.06–2.72

0.029

Ethnicity - Mixed ^b

0.48

0.31–0.73

0.001

0.45

0.28–0.72

0.001

1.08

0.64–1.81

0.771

Ethnicity - Other ^b

0.35

0.20–0.62

0.000

0.36

0.19–0.68

0.002

0.98

0.49–1.96

0.958

Free school meal eligibility (yes) ^c

3.57

2.98–4.26

0.000

2.30

1.85–2.85

0.000

4.41

3.49–5.58

0.000

Special education need (yes) ^d

4.26

3.21–5.66

0.000

2.29

1.64–3.19

0.000

4.08

2.87–5.81

0.000

Child in need status (yes) ^e

1.84

1.28–2.63

0.001

0.87

0.57–1.33

0.516

2.39

1.49–3.84

0.000