Autologous micro-fragmented adipose tissue injection provides significant and prolonged clinical improvement in patients with knee osteoarthritis: a case-series study

Journal of Experimental Orthopaedics

Table 7 Factors influencing WOMAC improvements

	Δ3-month	Δ 6-month	Δ 12-month	Δ 24-month	Δ 36-month
Intercept P value	-33.2 < 0.001	-41.6 < 0.001	-44.2 0.001	-52.4 < 0.001	-39.2 0.001
Gender (M) P value	14.3 0.017	17.4 0.011	16.3 0.043	21.7 0.053	21.4 0.124
KL = 2 P value	-	0.54 0.772	0.15 0.864	20.1 0.088	-
KL = 3 P value	-	-11.0 0.347	-3.3 0.817	9.6 0.683	-
BMI P value	-	-	-	-	1.9 0.506
N (knees)	67	62	51	36	25

Δ, difference compared to baseline. Coefficient (i.e. mean changes associated with the index variable) and p values are reported. Reference subject: Female, KL grade 1, BMI = 26. Intercept indicated the mean change for a subject with reference values. Values represent absolute adjusted change in score due to 1 unit increase (continuous variable) or absolute variation with respect to the reference category (Gender, KL grade)
M male, KL Kellgren-Lawrence, BMI body mass index