Table 3.

Estimated coefficients (β) with standard error (SE) from multiple linear regression models of sciatica symptoms by demographic and clinical characteristics

	Leg pain		Paresthesia		Weakness
	β	SE	β	SE	β	SE
Age (+1 year)	−0.01	0.01	0.01	0.01	0.00	0.01
Sex (females vs. males)	0.24	0.15	0.25	0.18	0.22	0.19
Duration of current episode (+1 week)	0.00	0.00	0.00	0.00	0.00	0.00
Education (+1 year)	−0.04	0.03	−0.01	0.03	−0.01	0.03
Working status (full time vs. not full time)	−0.28	0.18	−0.52*	0.22	−0.39	0.24
Smoking status (smoking vs. not smoking)	0.22	0.14	0.19	0.18	0.03	0.19
SF-36 General health (+1 unit)	0.00	0.00	0.00	0.01	0.00	0.01
SF-36 Physical functioning (+1 unit)	−0.02**	0.00	−0.01*	0.00	−0.02**	0.00
HSCL-25 mean score (+1 unit)	0.45*	0.19	0.53*	0.24	0.49	0.25
SLR (abnormal vs. normal)	0.63**	0.15	0.42*	0.19	0.07	0.20
Sensibility (abnormal vs. normal)	−0.02	0.14	1.08**	0.18	0.29	0.19
Muscular strength (abnormal vs. normal)	−0.22	0.14	0.59**	0.18	1.73**	0.19
Reflexes (abnormal vs. normal)	−0.22	0.14	0.02	0.17	0.17	0.18

Statistically significant β-coefficients are in bold

*P < 0.05; **P < 0.01