A comparative study between rheumatoid arthritis and osteoarthritis regarding association of insomnia with disease status

Egyptian Rheumatology and Rehabilitation

Table 5 Regression analysis for the prediction of the Athens Insomnia scale grading in RA patients

RA (n = 20)	Beta	P value	95.0% confidence interval for B
RA (n = 20)	Beta	P value	Lower bound	Upper bound
Tender joints	0.30	0.390	− 0.41	0.97
Swollen joints	0.25	0.45	− 1.14	2.57
Anti-CCP titre	0.20	0.28	− 0.01	0.03
DAS 28	0.12	0.003**	1.29	5.25
Beck depression inventory	0.31	0.01 *	0.01	0.53