Table 2 The meta-analysis results and corresponding qualities of evidence (GRADE)

One month after treatment

PRP

^b1.80(-6.68,10.28)/m

^b5.49(-1.36,12.34)/m

^b4.50(-1.88,10.88)/m

^a1.49(-0.94,3.92)/m

PRF

^b3.69(-3.81,11.19)/m

^b0.81(-3.14,4.77)/m

^a-0.36(-2.31,1.60)/l

^a-1.85(-3.83,0.13)/l

HA

^b2.99(-2.78,8.76)/l

^a*-2.89(-4.63,-1.15)/l

^a*-1.04(-2.00,-0.09)/m

^a1.74(-0.19,3.68)/m

PO

Three months after treatment

PRP

^b-2.31(-8.69,4.06)/l

^b4.38(-1.70,10.47)/m

^b*8.31(4.81,11.82)/m

^a1.38(-0.76,3.52)/m

PRF

^b*6.69(2.11,11.28)/m

^b1.62(-1.33,4.57)/m

^a-0.47(-1.85,0.91)/l

^a-1.85(-4.02,0.31)/l

HA

^b1.38(-3.43,6.20)/l

^a-0.88(-1.89,0.14)/m

^a*-2.26(-4.14,-0.37)/m

^a-0.40(-1.50,0.70)/m

PO

Six months after treatment

PRP

^b*-11.01(-16.17,-5.86)/l

^b-2.29(-4.85,0.27)/l

^b0.11(-2.07,2.29)/l

^a-0.17(-2.88,2.54)/m

PRF

^b*8.72(3.64,13.80)/m

^b*11.12(6.45,15.79)/m

^a-0.79(-1.65,0.07)/m

^a-0.62(-3.33,2.09)/m

HA

^b*2.40(0.40,4.40)/m

^a*-1.17(-1.82,-0.51)/m

^a-1.00(-3.63,1.63)/m

^a-0.38(-1.06,0.30)/m

PO