Table 5.

Effect of covariates on QUS index.

Variable	Coefficient	95% confidence interval	p
Age	−0.01	−0.02; −0.004	0.006
Gender	0.32	0.20; 0.44	0.000
PA (step count)	0.00	0.00; 0.00	0.285
TARFS	0.01	0.00; 0.02	0.034
Antidepressants	0.06	−0.15; 0.27	0.582
Inhaled steroids	−0.16	−0.47; 0.15	0.304
Antiepileptics	−0.57	−1.33; 0.19	0.145
Vitamin D	−0.59	−1.098; −0.073	0.025
Calcium	−0.35	−0.55; −0.15	0.001
Smoking class “ever”	0.13	0.00; 0.26	0.050
Smoking class “never”	Ref	—	—
Smoking class “now”	−0.36	−0.60; −0.12	0.003
BMI < 18.5 “underweight”	−0.59	−1.52; 0.34	0.215
18.5 ≤ BMI < 25 “normal”	Ref	—	—
25 ≤ BMI< 30 “overweight”	0.33	0.17; 0.49	0.000
BMI ≥ 30 “obese”	0.48	0.31; 0.65	0.000

PA: physical activity; TARFS: Total Australian Recommended Food Score.