Table 2.
P‐wave Indices Reference Value Distributions by Sex and Age.*
| Maximum P Wave, milliseconds | Mean P Wave, milliseconds | Mean P‐wave Duration, Lead II, milliseconds | P‐wave Dispersion, milliseconds | Standard Deviation P Wave, milliseconds | PR Interval, milliseconds | ||
|---|---|---|---|---|---|---|---|
| <25 years | Men (n = 20) | 95 (88,100) | 81 (75,90) | 87 (80, 96) | 27 (19,35) | 9 (6,11) | 160 (160,160) |
| Women (n = 20) | 93 (87, 102) | 80 (75,85) | 84 (78,90) | 31 (28,38) | 10 (8,11) | 160 (140,160) | |
| 26–35 years | Men (n = 20) | 99 (92,110) | 84 (78,89) | 96 (86,107) | 31 (25,43) | 9 (8,12) | 160 (160,160) |
| Women (n = 20) | 95 (84,103) | 80 (74,86) | 92 (83,102) | 32 (23,42) | 9 (8,13) | 160 (140,160) | |
| 36–45 years | Men (n = 20) | 96 (92,105) | 83 (78,87) | 93 (91,98) | 31 (26.4,39.5) | 10 (8,12) | 160 (150,160) |
| Women (n = 20) | 94 (89,99) | 78 (74,83) | 88 (81,94) | 30.7 (24.3,33.5) | 9 (8,10) | 160 (140,160) | |
| 46–55 years | Men (n = 23) | 106 (103, 111) | 90 (87,95) | 99 (90, 107) | 37.0 (31.3,43.0) | 13 (11,14) | 160 (160,160) |
| Women (n = 20) | 99 (93,112) | 84 (81,89) | 94 (88,105) | 31.3 (24.5,46.5) | 10 (8,13) | 160 (150,160) | |
| 56–65 years | Men (n = 24) | 104 (96,114) | 87 (85,93) | 99 (94,111) | 36.5 (27.2,45.5) | 12 (9,15) | 160 (160,170) |
| Women (n = 24) | 105 (99,110) | 89 (86,91) | 100 (90,108) | 34.3 (29.8,42.2) | 11 (9,13) | 160 (160,170) | |
| 66–75 years | Men (n = 24) | 110 (104,114) | 91 (87,93) | 104 (85,108) | 37.7 (31.6,44.0) | 12 (10,14) | 160 (155,160) |
| Women (n = 23) | 105 (98,113) | 87 (83,92) | 102 (90,113) | 37.0 (32.6,42.3) | 12 (10,16) | 160 (140,180) | |
| 76–85 years | Men (n = 22) | 110 (109,114) | 89 (84,94) | 108 (102,110) | 46.7 (41.0,50.5) | 15 (13,16) | 180 (160,180) |
| Women (n = 17) | 105 (102,111) | 88 (83,89) | 102 (92,106) | 40.0 (33.7,47.0) | 13 (12,14) | 160 (160,180) |
*Values are median (25th Percentile, 75th Percentile).