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Table 1 Study population of 6-year-old children in East and West Germany by year of investigation and urban/rural residency. Number of participants of German nationality with complete information on parental education and portions of these participants with investigation of sensitisation (RAST), atopic eczema or lung function test.

From: Preschool children's health and its association with parental education and individual living conditions in East and West Germany

Year Sample size (percentage with RAST, dermatological investigation and lung function test)
  East Germany West Germany Total
  Urban a Rural b Urban c Rural d  
1991 3108 (32.4; 9.1; 24.3) 916 (40.9; 0.0; 25.7) 2554 (16.9; 20.9; 5.4) 359 (58.5; 68.8; 20.1) 6937 (29.2; 15.3; 17.2)
1992 1225 924 --e --e 2149
1993 973 873 --e --e 1846
1994 3331 (24.6; 17.2; 8.5) 890 (33.3; 31.7; 26.7) 396 (70.5; 37.1; 45.5) 265 (79.6; 87.7; 44.2) 4882 (32.9; 25.2; 16.8)
1995 1061 714 --e --e 1775
1996 965 667 --e --e 1632
1997 2095 (16.9; 16.5; 10.5) 561 (36.4; 47.1; 28.9) 356 (64.0; 82.9; 31.5) 429 (53.1; 58.3; 11.0) 3441 (28.1; 33.6; 15.7)
1998 862 321 --e --e 1183
1999 826 356 --e --e 1182
2000 1662 (17.0; 16.2; 0.0) 336 (29.5;38.4; 0.0) 1540 (12.3; 15.8; 13.1) 323 (41.2; 52.9; 44.6) 3861 (18.2; 21.1; 8.9)
Total 16108 (15.3; 9.1; 7.8) 6558 (14.9; 10.3; 9.5) 4846 (22.2; 25.2; 13.0) 1376 (56.8; 65.3; 27.6) 28888 (18.3; 14.8; 10.0)
  1. a Leipzig, Halle and Magdeburg; b Salzwedel, Gardelegen, Osterburg and Kloetze; c Duisburg, Essen, and Cologne; d Borken; e no investigation