Comparison of efficacy of corticosteroid injection versus extracorporeal shock wave therapy on inferior trigger points in the quadratus lumborum muscle: a randomized clinical trial

Table 1 Demographic and baseline characteristics comparison of patients with chronic LBP with trigger point on quadratus lumborum muscle between ESWT or corticosteroid TPI groups (n = 54)

Characteristics	ESWT (n = 27)	Corticosteroid TPI (n = 27)	P value
Gender (female)	20 (74.1%)	17 (63.0%)	0.379^a
Age, yrs	44.74 ± 9.34	45.04 ± 11.86	0.919^b
BMI, kg/m²	27.47 ± 1.44	26.20 ± 2.06	0.110^b

Note: The data are presented as mean ± standard deviation or frequency (percentage)
Abbreviation: ESWT Extracorporeal shockwave, TPI Trigger point injection, BMI Body mass index
Symbol: ^a P obtained from Chi-Square test, ^bP obtained from Independent samples t-test

ISSN: 1471-2474