Table 3 Association between caffeine metabolic ratios, risk of at least one hospital admission and length of stays in PsyMetab.

(Intercept)

0.06

0.02–0.25

<0.001

Age (10 years)

1.56

1.42–1.72

<0.001

0.87

0.84–0.90

<0.001

Sex (Male)

0.76

0.57–1.01

0.059

1.11

0.99–1.25

0.13

Psychiatric diagnosis^a

 Mood disorders

1.54

1.06–2.26

0.02

1.00

0.83–1.21

0.99

 Psychotic disorders

5.88

3.86–9.05

<0.001

0.87

0.72–1.06

0.28

Smoking

0.99

0.74–1.34

0.97

1.14

1.01–1.28

0.05

Caffeine metabolic ratios^b

1.26

1.09–1.46

0.002

0.89

0.84–0.95

<0.001

rs2472297 (TT or CT; ref: CC)

0.85

0.61–1.19

0.35

0.98

0.86–1.12

0.79

rs4410790 (TT or CT; ref: CC)

1.34

0.99–1.82

0.057

0.99

0.88–1.11

0.88

rs56113850 (TT or CT; ref: CC)

1.21

0.36–4.01

0.75

0.82

0.44–1.54

0.38

Clozapine or olanzapine use

1.59

1.05–2.46

0.03

0.88

0.77–1.01

0.11

Patients

Observations