Demographic and echocardiographic characteristics
| 10–19 years | 20–29 years | 30–39 years | 40–49 years | 50–59 years | ⩾ 60 years | All subjects | |
| n | 15 | 92 | 127 | 65 | 52 | 50 | 404 |
| Age (years) | 17.9 (1.0) | 25.1 (3.0) | 34.4 (2.9) | 44.4 (3.0) | 54.1 (3.0) | 69.2 (7.3) | 40.3 (15.0) |
| Male/female (%male) | 15/3 (80%) | 63/29 (68%) | 93/34 (73%) | 33/32 (51%) | 29/23 (56%) | 27/23 (54%) | 259/145 (64%) |
| LVMI (g/m2) | 75 (9) | 85 (25) | 87 (22) | 86 (15) | 88 (19) | 90 (21) | 88 (22) |
| LA diameter (mm) | 34 (4) | 33 (5) | 35 (5) | 34 (5) | 36 (4) | 37 (6) | 35 (5) |
| LVEF (%) | 67 (7) | 68 (7) | 69 (7) | 69 (7) | 69 (6) | 69 (7) | 69 (7) |
| Heart rate (beats/min) | 74 (9) | 70 (14) | 68 (13) | 75 (17) | 73 (13) | 72 (12) | 71 (14) |
| Systolic BP (mm Hg) | 123 (24) | 120 (10) | 121 (15) | 123 (16) | 124 (19) | 131 (24) | 123 (17) |
| Diastolic BP (mm Hg) | 73 (13) | 71 (11) | 74 (12) | 75 (11) | 73 (11) | 72 (14) | 73 (12) |
| TMFint (m) | 0.191 (0.030) | 0.184 (0.035) | 0.194 (0.046) | 0.191 (0.050) | 0.172 (0.031) | 0.198 (0.040) | 0.189 (0.042) |
| E:A | 1.61 (0.37) | 1.81 (0.52) | 1.52 (0.43) | 1.31 (0.32) | 1.12 (0.27) | 0.98 (0.22) | 1.49 (0.48) |
| EDT (ms) | 144 (26) | 152 (35) | 164 (38) | 167 (41) | 166 (41) | 165 (47) | 161 (39) |
| IVRT (ms) | 73 (7) | 71 (10) | 76 (14) | 72 (10) | 79 (14) | 83 (14) | 75 (13) |
| AdurTMF (ms) | 130 (20) | 139 (24) | 146 (34) | 143 (31) | 142 (19) | 155 (35) | 144 (30) |
Values are mean (SD).
AdurTMF, duration of late diastolic transmitral flow; BP, blood pressure; E:A, early to late diastolic peak flow velocity ratio; EDT, deceleration time of early transmitral filling; IVRT, isovolumetric relaxation time; LA, left atrial; LVEF, left ventricular ejection fraction; LVMI, left ventricular mass index; TMFint, time–velocity integral of transmitral flow.