Skip to main content

Table 1 Characteristics of studies included in this meta-analysis

From: Lack of association of matrix metalloproteinase-3 gene polymorphism with susceptibility to rheumatoid arthritis: a meta-analysis

Author year

Ethnicity

HWE ( P)

Score

Sample size (case/control)

Case (%)

Control (%)

5A

6A

6A/6A

5A/6A

5A/5A

5A

6A

6A/6A

5A/6A

5A/5A

Abd-Allah 2012

Caucasian (Egypt)

Y (0.986)

8

100/100

88 (44.0)

112 (56.0)

33 (33.0)

46 (46.0)

21 (21.0)

128 (64.0)

72 (36.0)

13 (13.0)

46 (46.0)

41 (41.0)

Constantin 2002

Caucasian (France)

Y (0.213)

8

102/126

98 (48.0)

106 (52.0)

27 (26.5)

52 (51.0)

23 (22.5)

111 (44.0)

141 (56.0)

36 (28.5)

69 (54.8)

21 (16.7)

Dörr 2004

Caucasian (Germany)

Y*

8

308/110

306 (49.6)

310 (50.4)

NM

NM

NM

103 (46.8)

117 (53.2)

NM

NM

NM

Rodrigue 2006

Caucasian (Spain)

Y*

7

550/652

556 (50.5)

544 (49.5)

NM

NM

NM

674 (51.7)

630 (48.3)

NM

NM

NM

Scherer 2010

Caucasian (Brazil)

Y (0.130)

8

110/100

71 (32.3)

149 (67.7)

52 (47.3)

45 (40.9)

13 (11.8)

90 (45.0)

110 (55.0)

34 (34.0)

42 (42.0)

24 (24.0)

Zhou 2007

Asian (China)

Y (0.150)

7

281/151

65 (11.6)

497 (88.4)

224 (79.7)

49 (17.4)

8 (2.8)

36 (11.9)

266 (88.1)

119 (78.8)

28 (18.5)

4 (2.7)

  1. HWE: Hardy–Weinberg equilibrium, Y: yes, N: no. *confirmed in original study, Score: The Newcastle-Ottawa Scale for Case-control Study, NM: none mention.