Table 3 Regression analyses to show univariable linear and multivariable GAM models
Predictors | Univariable association | Multivariable model | ||
|---|---|---|---|---|
β (95% CI) | P | β (95% CI) | P | |
Age, years | − 0.008 (− 0.03–0.01) | 0.50 | − 0.008 (− 0.03–0.01) | 0.40 |
Sex | 0.46 (− 0.23–1.16) | 0.20 | 0.54 (− 0.29–1.26) | 0.10 |
Disease duration, years | 0.01 (− 0.02–0.04) | 0.50 | 0.02 (− 0.01–0.03) | 0.15 |
Mood status score | − 0.05 (− 0.08–− 0.02) | 0.001 | − 0.04 (− 0.07–− 0.02) | 0.01 |
Night sleep duration on weekdays | 0.03 (− 0.15–0.21) | 0.70 | 0.21 (− 0.04–0.50) | 0.20 |
Night sleep duration on weekends | − 0.06 (− 0.21–0.10) | 0.50 | − 0.20 (− 0.41–− 0.02) | 0.03 |
Time to fall asleep, Minutes | − 0.01 (− 0.03–− 0.001) | 0.03 | − 0.007 (− 0.01–0.01) | 0.20 |
Sleep quality score | EDF* = 2.10 | 0.0006 | EDF* = 2.10 | 0.01 |
Time to go to bed on weekdays | EDF* = 2.40 | 0.20 | EDF* = 2.45 | 0.08 |
Wake-up time on weekdays | EDF* = 1.32 | 0.80 | EDF* = 1.72 | 0.25 |
Nap duration on weekdays, Minutes | EDF* = 1.13 | 0.20 | EDF* = 1.96 | 0.03 |
Nap duration on weekends, Minutes | − 0.003 (− 0.01–0.006) | 0.50 | Removed by backward elimination | |
Time to go to bed on weekends | EDF = 3.51 | 0.04 | ||
Wake-up time on weekends | 0.05 (− 0.08–0.19) | 0.40 | ||
Snoring | − 0.027 (− 0.11–0.057) | 0.55 | ||
diet score | 0.006 (− 0.03–0.05) | 0.80 | ||
Smoking, Pack-Years | 0.01 (− 0.02–0.04) | 0.60 | ||
Physical activity | − 0.03 (− 0.24–0.18) | 0.80 | ||
Social activity | 0.06(− 0.14–0.26) | 0.80 | ||
Body mass index | − 0.003 (− 0.01–0.009) | 0.60 | ||
Number of tender joints | − 0.001 (− 0.06–0.06) | 0.97 | ||
Number of swollen joints | 0.01 (− 0.05–0.07) | 0.70 | ||
Extra-articular manifestations | − 0.02 (− 0.14–0.09) | 0.70 | ||
Hemoglobin level | − 0.005 (− 0.13–0.12) | 0.90 | ||
C-reactive protein | − 0.008 (− 0.03–0.01) | 0.40 | ||
Triglyceride level | − 0.001 (− 0.005–0.004) | 0.80 | ||
Fasting blood sugar | − 0.002 (− 0.11–0.006) | 0.50 | ||