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Table 1 Global parameters and analysis of the variables by age subgroups

From: Tissue Doppler Imaging and strain rate of the left atrial lateral wall: age related variations and comparison with parameters of diastolic function

 

Global

Md (IQR)

≤ 30 y

n: 14

Md (IQR)

31–40 y

n: 27

Md (IQR)

41–50 y

n: 27

Md (IQR)

51–60 y

n:14

Md (IQR)

≥ 61 y

n: 9

Md (IQR)

p

Age (y)

42 (18)

23.5 (3.7)

34 (3.5)

44 (4)

53.5 (5.7)

69 (2)

< 0.0001

Female (%)

54.9

64.3

33.3

63

64.3

66.7

NS

HR (bpm)

74 (15)

76.5 (11.7)

74 (15)

75 (14.2)

69.5 (9.7)

77 (12)

NS

SBP (mmHg)

110.5 (16.5)

95 (18)

110 (19)

115 (16)

115 (17.5)

126 (8.7)

< 0.0001

DBP (mmHg)

70.5 (10)

60 (10)

75 (10)

76 (10)

80 (10)

77.5 (10)

0.001

BSA

1.83 (0.2)

1.71 (0.1)

1.97 (0.3)

1.83 (0.19)

1.84 (0.4)

1.76 (0.1)

0.03

EF (%)

63 (11.7)

61 (8)

63 (13.5)

66 (11)

62 (7)

62.5 (12.2)

NS

LA Vol Ind (ml/m2)

22.9 (8)

20.6 (6.3)

21.7 (5.4)

23 (12.4)

25.2 (5.5)

22.8 (3.8)

NS

E (cm/s)

79 (22.5)

84.5 (15)

80 (23.5)

80 (17.5)

72.5 (20.5)

60 (11)

0.01

A (cm/s)

61 (23.5)

47.5 (15.2)

52 (14)

64 (20)

80 (17.7)

78 (20)

< 0.0001

E/A

1.32 (0.7)

1.79 (0.7)

1.62 (0.4)

1.22 (0.5)

0.98 (0.3)

0.7 (0.3)

< 0.0001

DTE (ms)

211 (70.5)

201.5 (68)

190 (44)

202 (63)

228.5 (45)

292 (152)

0.003

LmaS´ (cm/s)

10 (3)

11 (2.7)

11 (4.5)

11 (4)

9 (2.5)

10 (3)

NS

LmaE´ (cm/s)

14 (7)

17.5 (1.7)

16 (5)

14 (4.5)

11 (3)

9 (2)

< 0.0001

LmaA´ (cm/s)

9 (4)

6.5 (3.7)

8 (2.5)

9 (3.5)

9.5 (2.7)

13 (4)

0.001

LmaE´/LmaA´

1.70 (1.12)

2.70 (2.48)

2.0 (1.09)

1.37 (0.65)

1.10 (0.57)

0.6 (0.37)

< 0.0001

SmaS´ (cm/s)

8 (2)

7 (1)

8 (1)

8 (2)

7.5 (1)

8 (1)

NS

Sma E´ (cm/s)

9 (4)

11 (3.5)

11 (5)

9 (3)

8 (2.7)

6 (2)

0.001

Sma A´ (cm/s)

9 (3)

7 (2)

8 (3.5)

9 (3)

9 (1)

11 (3)

0.001

Sma E´/Sma A´

1.11 (0.81)

1.73 (0.49)

1.37 (0.92)

1 (0.39)

0.88 (0.31)

0.57 (0.18)

< 0.0001

E/e´

6.7 (1.7)

5.77 (1.3)

6.17 (1)

7.01 (1.5)

7.68 (2.4)

8.4 (1.7)

0.0002

S’la (cm/s) basal

11.5 (3)

10 (2)

11 (2)

12 (3)

11 (3.7)

12 (3)

NS

E’la (cm/s) basal

13 (5)

15 (5)

16 (3)

13 (3)

10 (2)

9 (1)

< 0.0001

A’la (cm/s) basal

12 (4)

10 (3)

11 (2)

14 (5)

12.5 (2.7)

13 (2)

0.0006

E’la/A’la basal

1.06 (0.6)

1.63 (0.5)

1.42 (0.4)

0.92 (0.2)

0.82 (0.2)

0.64 (0.1)

< 0.0001

SRS (1/s) basal

2.9 (0.9)

3.6 (1.2)

3.13 (0.8)

2.62 (1.1)

2.54 (0.8)

2.17 (1.1)

0.016

SRE (1/s) basal

- 2.74 (1.1)

−3.4 (1)

−3.06 (0.6)

−2.26 (1.2)

−2.31 (0.5)

−1.97 (0.2)

< 0.0001

SRA (1/s) basal

−2.65 (1.1)

−2.6 (1.2)

−2.48 (1.1)

−2.7 (1.1)

− 2.9 (0.8)

−2.87 (0.7)

NS

SRE/SRA basal

1.03 (0.6)

1.23 (0.1)

1.19 (0.5)

0.78 (0.6)

0.88 (0.2)

0.69 (0.1)

0.002

  1. HR heart rate, bpm beats per minute, SBP systolic blood pressure, DBP diastolic blood pressure, BSA body surface area, EF ejection fraction, LA Vol Ind indexed left atrial volume, DTE E-wave deceleration time, Lma lateral mitral annulus, Sma septal mitral annulus, la left atrial, SR Strain Rate