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. Author manuscript; available in PMC: 2009 Jul 1.
Published in final edited form as: J Electrocardiol. 2008 Mar 14;41(4):342–350. doi: 10.1016/j.jelectrocard.2007.11.006

Table 1.

Characteristics of study population

Variable: Total Males Females
Age, years (mean, sd) 59.9 (13.4) 60 (13.4) 59.7 (13.5)
Gender (% female) 53% - -
Current smoker at baseline (%) 23% 27% 18%
Total cholesterol, mmol/l (mean, sd) 5.64 (1.14) 5.51 (1.10) 5.78 (1.16)
HDL* cholesterol, mmol/l (mean, sd) 1.32 (0.42) 1.19 (0.38) 1.42 (0.42)
Diabetes (%) 11% 11% 11%
Systolic blood pressure, mmHg 132.9 (19.9) 134.0 (18.5) 132.4 (21.0)
Cornell voltage, mm 13.1 (5.5); 14.0 (5.7); 12.0 (5.0);
  (mean, sd; median, IQR) 12.7 (9.20,16.5) 14.0 (10.3,17.9) 11.6 (8.38,15.1)
Cornell product, mm-msec 1272 (580); 1428 (610); 1132 (512);
  (mean, sd; median, IQR) 1205 (858,1611) 1368 (999,1788) 1076 (761,1432)
Adjusted Cornell voltage 1.5 (0.6); 1.8 (0.6); 1.2 (0.5);
  (mean, sd; median, IQR) 1.5 (1.08,1.90) 1.8 (1.44,2.19) 1.2 (0.88,1.50)
Sokolow-Lyons voltage, mm 25.9 (7.8); 27 (8.3); 24.8 (7.0);
  (mean, sd; median, IQR) 25.0 (20.6,30.2) 26.3 (21.5,32.1) 23.8 (20.0,28.7)
Novacode mass, gms 154 (29.4); 172 (25.5); 138 (22.6);
  (mean, sd; median, IQR) 153 (133,174) 171 (156,188) 136 (123,152)
Novacode mass index, gms/m2 105 (21.7); 112 (20.5); 98.4 (20.8);
  (mean, sd; median, IQR) 103 (90,118) 110 (99,123) 96.0 (85,110)
*

HDL = high density lipoprotein