2007 11 22

Archie Cochrane 19091988systematic reviewSR1979 (Archie Cochrane).

Systematic review

Meta-

,,,,,.

1 2 3 4

(SR)Meta- (RCT) (CCT)

JADAD

A BMeta C D

1980RCTs

N OR CIA 1972 1070 0.560.39-0.80B 1977 130 0.340.12-0.94C 1978 126 0.330.13-0.87D 1979 127 0.600.23-1.25E 1979 146 0.280.13-0.63

MEDLINE Liggins GC, Howie RN. . Pediatrics, 1972;50:515-525

Block MF, Kling OR, Crosby WM.. Obstet Gynecol, 1977;50:186-90.

Robertson NR. . British Medical Journal, 1982;284:917-918

1982 BMJ3032

Crowley P, Chalmers I, Keirse MJNC. The effects of corticosteroid administration before preterm delivery: an overview of the evidence from controlled trials. British Journal of Obstetrics and Gynaecology 1990;97:11-25.

1250%0.49 95% CI 0.41-0.60 0.5395% 0.44 0.63

David Sackett,2000

Cochrane19952000

Chart6

600

80120

120250

180450

150680

2001000

new review

total review

Sheet1

606001995

1996200801201996

19973701202501997

19986301804501998

19995701506801999

2000120020010002000

Sheet1

00

00

00

00

00

00

new review

total review

Sheet2

Sheet3

The Cochrane

MEDLINE

BMJ 199012OR