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Table 1 Patient characteristics

From: Assessment of left ventricular function in horses with aortic regurgitation by 2D speckle tracking

 ControlMildModerateSevereAll AR
Number of horses2923211357
Age (years)8 ± 4a14 ± 6b
P = 0.001
15 ± 6b
P < 0.001
16 ± 6b
P < 0.001
15 ± 6
Body weight (kg)566 ± 48548 ± 61542 ± 72559 ± 78548 ± 68
Height at withers (cm)168 ± 4166 ± 6167 ± 7169 ± 8167 ± 7
Heart rate (beats/min)40 ± 740 ± 639 ± 642 ± 1040 ± 7
LVIDd (500) (cm)11.1 (9.9–13.5)a11.2 (9.5–13.2)a12.4 (10.7–13.5)b
P < 0.022
13.7 (12.4–18.9)bP < 0.00112.2 (9.5–18.9)
LVIDs (500) (cm)6.4 (4.6–8.1)a6.4 (4.4–8.1)a7.3 (6.0–8.5)bP < 0.0278.5 (6.1–10.8)bP < 0.0017.1 (4.4–10.8)
FS (%)43 ± 644 ± 741 ± 539 ± 1141 ± 7
EF (%)72 (49–83)71 (50–86)69 (61–76)70 (39–80)70 (39–86)
  1. LVIDd (500), left ventricular internal diastolic diameter scaled for bodyweight; LVIDs (500), left ventricular internal systolic diameter scaled for bodyweight; FS, fractional shortening; EF, ejection fraction. Different superscripts indicate significant (P < 0.05) differences between groups (a, b). Variables with normal distribution are reported as mean ± standard deviation. Variables with non-normal distribution are reported as median (range)