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Table 1 Characteristics of the included studies

From: A meta-analysis of randomized control trials of surgical methods with osteosarcoma outcomes

Ref.

Study period

Patient number

Male/female

Median age (range)

Enneking stage

Country

Ferrari et al.

1983–1986

127 (91/35)

72/55

15 (5–43)

Stage IIB

Austria

Bacci et al.

1986–1993

29 (25/4)

20/9

46

Stage IIB

Italy

Edmonson et al.

1976–1980

38 (1/37)

24/14

17 (9–62)

Stage IIB

Austria

Gherlinzoni et al.

1983–1988

355 (239/116)

–

–

Stage IIA

Italy

Goorin et al.

1976–1989

74 (36/38)

–

–

Stage IIA

Austria

Zhang et al.

1981–1997

31 (17/14)

26/5

15 (7–42)

Stage IIB

China

Sha et al.

1989–2006

56 (35/21)

–

18 (2–46)

Stage IIA

China

Niu et al.

1992–2001

189 (140/49)

125/64

18 (4–39)

Stage IIB

China

Bramer et al.

1983–2003

56 (44/12)

36/20

16 (3–36)

Stage IIB

America

Ferguson et al.

1989–2006

31 (19/12)

14/17

30 (11–32)

Stage IIB

America