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Table 3 GRADE evidence quality for each outcome

From: Progress in the treatment of knee osteoarthritis with high tibial osteotomy: a systematic review

N(study)

Design

Limitation

Inconsistency

Indirctness

Imprecision

Publication Bias

N

Quality

â‘ (study)

Prospective cohort 7

RCT 1

Yes(-2)

NO

NO

NO

NO

1479

Low

â‘¡(study)

Prospective cohort 3

RCT 1

Retrospective cohort 1

NO

Yes(-1)

NO

NO

NO

919

Low

â‘¢(study)

RCT 1

PCS 1

RCS 1

NO

NO

NO

NO

NO

60

Medium

â‘£(study)

Prospective cohort 1

RCT 2

NO

NO

NO

NO

NO

790

Medium

⑤(study)

Prospective cohort 2

RCT 1

NO

NO

NO

NO

NO

156

Medium

â‘¥(study)

Prospective cohort 1

RCT 1

NO

NO

NO

NO

NO

72

Low

  1. ① Posterior slope of tibial plateau, ② the height of the patella, ③ fracture in the osteotomy plane, ④ survival rate, ⑤ HSS, ⑥ the recurrence of varus deformity
  2. RCT Randomized controlled trial, RCS Retrospective comparative study, PCS Prospective comparative study