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Table 3 Clustered cases, according to ethnicity, by year

From: Migrant tuberculosis: the extent of transmission in a low burden country

Year n(row %)*

Danes

Migrants

Somalis

Greenlanders

Others **

Total

1992

86 (63.2)

50 (36.8)

13 (9.6)

5 (3.7)

32 (23.5)

136 (100.0)

1993

97 (53.3)

85 (46.7)

32 (17.6)

15 (8.2)

38 (20.9)

182 (100.0)

1994

107 (48.0)

116 (52)

61 (27.4)

5 (2.2)

50 (22.4)

223 (100.0)

1995

93 (43.5)

121 (56.5)

61 (28.5)

14 (6.5)

46 (21.5)

214 (100.0)

1996

101 (47.0)

114 (53.0)

63 (29.3)

9 (4.2)

42 (19.5)

215 (100.0)

1997

86 (34.5)

163 (65.5)

104 (41.8)

13 (5.2)

46 (18.5)

249 (100.0)

1998

112 (41.3)

159 (58.7)

90 (33.2)

15 (5.5)

54 (19.9)

271 (100.0)

1999

87 (35.7)

157 (64.3)

102 (41.8)

8 (3.3)

47 (19.3)

244 (100.0)

2000

94 (39.3)

145 (60.7)

91 (38.1)

13 (5.4)

41 (17.2)

239 (100.0)

2001

96 (46.8)

109 (53.2)

52 (25.4)

20 (9.8)

37 (18.0)

205 (100.0)

2002

73 (41.2)

104 (58.8)

37 (20.9)

23 (13.0)

44 (24.9)

177 (100.0)

2003

96 (56.1)

75 (43.9)

27 (15.8)

18 (10.5)

30 (17.5)

171 (100.0)

2004

79 (52.3)

72 (47.7)

27 (17.9)

16 (10.6)

29 (19.2)

151 (100.0)

All

1207 (45.1)

1470 (54.9)

760 (28.4)

174 (6.5)

536 (20.0)

* 2677 (100.0)

  1. * Cases are represented by clustered M. tuberculosis strains included in study, high- and low copy number clustered patterns, genotyped by IS6110-RFLP/Spoligo in Denmark, 1992-2004, including cases without known country of birth (non-Danish, in "others") (n = 14).
  2. ** Pooling of non-Somali-Greenlandic migrants