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Table 1 Results Serum Amyloid A 51 horses subdivision in 3 groups
Nr. of horses Group mean Age (sd) mean SAA SAA range mean Sum of Weight
26 Negative 2.15 (1.08) <3 0 - 2 547 (229)
17 Moderate 3.12 (1.54) 24 7 – 69 553 (196)
8 High 6.63 (6.70) 535 111 – 1160 655 (270)
Legend of Table 1
Data of horses divided in three groups of post-operative Serum Amyloid A (SAA) depending on SAA value: Negative, Moderate and High, presenting number of horses, mean age and Standard deviation, mean value and range of SAA, Sum of Weight of excised tissue and standard deviation for each of the three groups.
Table 2 Four horses with extreme SAA values
Breed Age SAA pre-OP SAA post-OP Remarks
Standardbred 3 yr 75 mg/l 514 mg/l Possible orthopaedic injury
Riding pony 2 yr < 3 mg/l 747 mg/l Violent character, unilateral Cryptorchid
Welsh Cob 9 yr < 3 mg/l 1110 mg/l p.o. unilateral incisional infection
Warmblood 4 yr < 3 mg/l 1160 mg/l Incisor removal, tetanus vaccination
Legend of Table 2
Additional data of four horses with extreme high values of p.o. Serum Amyloid A (SAA): presenting breed, age (in year, yr), pre-operative SAA values, post-operative SAA values and some possible correlations.
Table 3 3rd day p.o. SAA Closed Inguinal Approach versus Field Castration
Literature: N1 s1 Mean SAA t df P-value P Cohen’s d
Jacobsen (2005) 1 11 68 458 mg/l 4.75 60 0.00000666 <0.001 2.75
Jacobsen (2005) 2 7 67 550 mg/l 4.75 56 0.00000726 <0.001 2.71
Busk (2010) 1 24 370 543 mg/l 6.18 73 0.00000002 <0.001 1.42
Busk (2010) 2 26 428 708 mg/l 7.94 75 0.00000000 <0.001 1.75
Haucke (2017) 1 24 151 664 mg/l 10.27 73 0.00000000 <0.001 1.98
Haucke (2017) 2 23 216 729 mg/l 10.50 72 0.00000000 <0.001 2.48
Bergstrom (2021) 1 33 479 608 mg/l 6.43 82 0.00000000 <0.001 1.34
Bergstrom (2021) 2 32 608 570 mg/l 5.35 81 0.00000040 <0.001 1.11
Legend of Table 3
Post-operative mean Serum Amyloid A (SAA) values of 51 horses castrated by the Closed Inguinal Approach in comparison with mean SAA values of eight groups of horses castrated in Field Castrations (FC) using a paired T-test. Representing author of respective FC study, number of horses in FC study (N1), standard deviation (s1), mean SAA (mean1), test value (t), degrees of freedom (df), calculated probability (P-value), significance level (P), Cohen’s d.