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Table 1 Demographic characteristics of the study population

From: Relationships between body dimensions, body weight, age, gender, breed and echocardiographic dimensions in young endurance horses

  4-year-olds 5-year-olds 6-year-olds Total p #
Number 101 109 130 340 n.s.
  Mean (± SD) Mean (± SD) Mean (± SD) Mean (± SD)  
HR (bpm) 44 (±10) 44 (±9) 43 (±10) 43 (±9) n.s.
BWT (kg) 405.9a (±39.2) 422.9b (±35.3) 411.1a (±37.0) 413.4 (±37.6) *
BSA (m2) 3.9a (±0.2) 4.0b (±0.2) 3.9a (±0.2) 3.9 (±0.2) *
WH (cm) 152.9 (±3.8) 153.5 (±4.0) 152.5 (±4.3) 152.9 (±4.0) n.s.
TC (cm) 173.5 (±7.6) 174.7 (±6.8) 173.1 (±5.8) 173.8 (±6.7) n.s.
BL (cm) 154.2 (±7.3) 154.7 (±7.5) 152.9 (±7.4) 153.9 (±7.4) n.s.
d-career (days) 109.7a (±69.5) 302.5b (±175.1) 576.3c (±268.8) 351.5 (±276.5) **
Km-career (km) 44.3a (±49.7) 130.5b (±82.8) 435.8c (±323.6) 223.0 (±269.8) **
Gender
females 42 52 64 158 **
geldings 34 36 48 118
intact males 25 21 18 64
Breed
Purebred Arabian 49 64 88 201 *
Part-bred Arabians 39 30 31 100
Anglo-Arabians 5 11 8 24
Others 8 4 3 15
  1. #, results from ANOVAs or Chi2 tests, as appropriate; *, significant at p < 0.05; **, significant at p < 0.01; n.s., not significant; results marked with a different superscript letter differed significant from the other results in the row. For p-values, see Additional file 5