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Table 2 Sero-prevalence of Chlamydia pneumoniae and heat shock proteins 60 in the various age groups

From: Chlamydia pneumoniae, heat shock proteins 60 and risk of secondary cardiovascular events in patients with coronary heart disease under special consideration of diabetes: a prospective study

  Male N(%) Female N(%) All N(%)
N = 1030 Chlamydia pneumoniae (IgA) positive
Age groups    
30–49 45 (34.4) 7 (46.7) 52 (35.6)
50–59 104 (39.4) 9 (25.0) 113 (37.7)
60–70 184 (38.3) 36 (34.3) 220 (37.7)
  p = 0.5 p = 0.8 P = 0.9
All 333 (38.1) 52 (33.3) 385 (37.4)
N = 1030 Chlamydia pneumoniae (IgG) positive
Age groups    
30–49 41 (31.5) 6 (40.0) 47 (32.4)
50–59 109 (41.1) 13 (36.1) 122 (40.5)
60–70 193 (40.3) 43 (41.0) 236 (40.4)
  p = 0.2 p = 0.9 p = 0.2
All 343 (39.2) 62 (39.7) 405 (39.3)
N = 1029 Chlamydia heat shock protein 60 positive   
Age groups    
30–49 26 (20.0) 2 (13.3) 28 (19.3)
50–59 52 (19.7) 7 (19.4) 59 (19.7)
60–70 114 (23.8) 27 (25.7) 141 (24.1)
  p = 0.4 p = 0.2 p = 0.2
All 192 (21.9) 36 (28.1) 228 (22.2)
N = 983 Human heat shock protein 60 positive
Age groups    
30–49 13 (10.5) 1 (7.1) 14 (10.1)
50–59 22 (8.9) 5 (13.9) 27 (9.5)
60–70 37 (8.0) 5 (5.0) 42 (7.5)
  p = 0.4 p = 0.2 p = 0.5
All 72 (8.7) 11 (7.3) 83 (8.4)