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Table 2 P wave parameter and morphology data

From: Age-related changes in P wave morphology in healthy subjects

  P wave duration X max position X max amplitude Y max position Y max amplitude  
All 123 ± 12 65 ± 10 51 ± 15 60 ± 10 80 ± 30  
Men 127 ± 11 67 ± 10 51 ± 10 60 ± 8 74 ± 21  
Women 121 ± 12 64 ± 10 52 ± 18 59 ± 10 87 ± 35  
P-value 0,004 0,19 0,85 0,57 0,05  
20–29 yrs 117 ± 12 63 ± 10 40 ± 9 53 ± 8 59 ± 27  
30–39 yrs 117 ± 11 63 ± 10 50 ± 12 57 ± 11 85 ± 29  
40–49 yrs 121 ± 13 64 ± 9 52 ± 12 61 ± 8 95 ± 26  
50–59 yrs 120 ± 13 69 ± 7 68 ± 22 66 ± 9 114 ± 50  
60–69 yrs 123 ± 15 62 ± 16 51 ± 23 59 ± 12 92 ± 29  
70 < yrs 125 ± 9 64 ± 6 53 ± 15 59 ± 11 77 ± 18  
P-value 0,02 0,57 0,07 0,21 0,37  
  Z min position Z min amplitude Z zero position Z max position Z max amplitude P wave morphology
All 41 ± 7 -30 ± 10 65 ± 13 86 ± 15 20 ± 10 45/73/2
Men 43 ± 7 -32 ± 11 65 ± 12 89 ± 15 25 ± 10 18/42/0
Women 39 ± 6 -29 ± 9 64 ± 13 85 ± 15 19 ± 11 27/31/2
P-value 0,004 0,09 0,26 0,10 0,003 0,001
20–29 yrs 42 ± 5 -26 ± 7 72 ± 11 87 ± 17 9 ± 5 12/8/0
30–39 yrs 40 ± 4 -31 ± 10 64 ± 10 85 ± 16 16 ± 11 10/10/0
40–49 yrs 38 ± 8 -27 ± 10 67 ± 22 82 ± 22 18 ± 11 12/8/0
50–59 yrs 38 ± 6 -29 ± 11 57 ± 8 79 ± 6 22 ± 10 1/18/1
60–69 yrs 36 ± 5 -29 ± 6 60 ± 9 92 ± 15 21 ± 9 5/14/1
70 < yrs 41 ± 6 -33 ± 9 63 ± 13 84 ± 6 26 ± 12 2/18/0
P-value 0,18 0,59 0,02 0,35 < 0,001 < 0,001
  1. P wave parameter data is provided above. All positions and P wave duration (PWD) are expressed as [ms] and all amplitudes as [μV]. In the column "P wave morphology", the distribution of different P wave morphology types is provided (Type 1/Type 2/Atypical).