Analyze Diet

Topic:Risk Factors

Risk factors in horses refer to variables or conditions that increase the likelihood of disease, injury, or other adverse health outcomes in equine populations. These factors can be intrinsic, such as age, breed, and genetic predisposition, or extrinsic, including environmental conditions, management practices, and exposure to infectious agents. Understanding risk factors is important for developing preventive strategies and improving health management in horses. This page aggregates peer-reviewed research studies and scholarly articles that explore the identification, assessment, and mitigation of risk factors in equine health, with the aim of enhancing disease prevention and promoting overall well-being in horses.
Bronchoalveolar lavage in the newborn foal.
Journal of reproduction and fertility. Supplement    January 1, 1987   Volume 35 587-592 
Liu IK, Walsh EM, Bernoco M, Cheung AT.Two bronchoalveolar lavages, 24 h apart, were performed on 15 foals, ranging in age from 1 to 21 days. In the first lavage, a numerical deficiency in alveolar macrophages was demonstrated in foals up to 2 weeks of age when compared with older (2-3 years of age) horses. Alveolar macrophages obtained from the lungs of 2-3-day-old foals also demonstrated significant impaired chemotactic function. In the second lavage, although an increase of alveolar macrophages was noted, a dramatic increase of polymorphonuclear neutrophil (PMN) mobilization occurred in the foals, thus providing a phagocytic bac...
Epizootic vesicular stomatitis in Colorado, 1982: epidemiologic studies along the northern Colorado front range.
The American journal of tropical medicine and hygiene    January 1, 1987   Volume 36, Issue 1 183-188 doi: 10.4269/ajtmh.1987.36.183
Webb PA, Monath TP, Reif JS, Smith GC, Kemp GE, Lazuick JS, Walton TE.Epidemiologic evaluations were made of farm personnel on vesicular stomatitis-affected premises along the front range of the Rocky Mountains in Colorado during the 1982 epizootic. A similar antibody prevalence was noted to that of veterinarians and research and regulatory personnel who were involved with the same epizootic. Risk of infection resulted from intimate physical contact with infected horses or cows. Incidence and infection rates in horses were 45%; rates in cows were much lower, only 5%. Some epidemiologic clues were gained by a detailed study of an equine ranch. The pasture was inc...
Epizootic vesicular stomatitis in Colorado, 1982: infection in occupational risk groups.
The American journal of tropical medicine and hygiene    January 1, 1987   Volume 36, Issue 1 177-182 doi: 10.4269/ajtmh.1987.36.177
Reif JS, Webb PA, Monath TP, Emerson JK, Poland JD, Kemp GE, Cholas G.In 1982-1983, an epizootic of vesicular stomatitis occurred in the western United States. Veterinarians, research workers, and regulatory personnel who were exposed to vesicular stomatitis virus were examined for patterns of human infection and prevalence of vesicular stomatitis New Jersey serotype neutralizing antibody. Insight into the mechanism of transmission was sought by comparing activities of antibody-positive and antibody-negative persons. A statistically significant risk factor was a history of infected animals sneezing in the face of serosurvey participants. Elevated odds ratios wer...
Genomic and antigenic comparison of an equine herpesvirus 1 (EHV 1) isolate from the 1983 Lippizan abortion storm with EHV 1 reference strains.
Microbiologica    April 1, 1986   Volume 9, Issue 2 221-234 
Engels M, Nowotny N, Metzler AE, Wyler R, Bürki F.An EHV 1 isolate from the Lippizan Stud at Piber, which caused the abortion and paresis outbreak in 1983, was investigated using 3 known subtype 1 and 2 subtype 2 strains for comparison. Broad-scale restriction enzyme analysis as well as cross-neutralization with hyperimmune sera produced in rabbits were performed, and SDS-PAGE of infected cell proteins was conducted on a limited scale. The Piber isolate was clearly classified as a subtype 1 strain of EHV 1, and showed closest resemblance in its restriction patterns with a British EHV 1 strain, which originated from an outbreak with paretic sy...
[Riding accidents in the County of Fredriksborg. A one-year prospective study].
Ugeskrift for laeger    March 17, 1986   Volume 148, Issue 12 738-740 
Kramhøft M, Kjersgaard AG, Kramp S, Rosenberg B, Solgaard S.No abstract available
Risk factors for salmonellosis in hospitalized horses.
Journal of the American Veterinary Medical Association    January 15, 1986   Volume 188, Issue 2 173-177 
Hird DW, Casebolt DB, Carter JD, Pappaioanou M, Hjerpe CA.A case-control study to identify risk factors associated with isolation of Salmonella was accomplished, using data from records of horses hospitalized in the period July 1971 through June 1982. Horses in which nasogastric tubes were passed were at 2.9 times greater risk of having Salmonella isolated, compared with horses that did not undergo this procedure. Horses treated with antibiotics parenterally were at 6.4 times greater risk, and those treated with antibiotics orally and parenterally were at 40.4 times greater risk of developing salmonellosis, compared with horses not receiving such tre...
Youth Accidents With Horses.
The Physician and sportsmedicine    September 1, 1985   Volume 13, Issue 9 105-117 doi: 10.1080/00913847.1985.11708882
Bixby-Hammett DM.In brief: In a two-year study of the estimated 13,428,000 hours of horse activities by 18,408 US Pony Clubs (USPC) members aged 6 to 21 in scheduled supervised programs, there were 64 accidents resulting in 88 injuries in 16 areas of the body. The head/face was the area most often injured (27.27%), and bruise/abrasion was the most common type of injury (28.26%). Cross-country riding was the most dangerous event (42.31%). Unexpected actions of the horse caused many accidents-25% occurred when the horse bucked and threw the rider, 23.08% when the horse refused a jump, and 17.31% when the horse f...
Head protection for horse riders: a cause for concern.
Archives of emergency medicine    June 1, 1985   Volume 2, Issue 2 85-87 doi: 10.1136/emj.2.2.85
Muwanga LC, Dove AF.We report the frequency with which horse riders with a significant head injury present to a large accident and emergency department. We have also recorded details about the use of headwear and conclude that horse-riding is associated with a serious risk of head injury and 'protective' headwear may not always protect.
Insurance cover at race courses.
The Veterinary record    April 20, 1985   Volume 116, Issue 16 450 doi: 10.1136/vr.116.16.450-a
Eagles BW.No abstract available
Case-control study of risk factors associated with isolation of Salmonella saintpaul in hospitalized horses.
American journal of epidemiology    December 1, 1984   Volume 120, Issue 6 852-864 doi: 10.1093/oxfordjournals.aje.a113957
Hird DW, Pappaioanou M, Smith BP.In an investigation of a 1981-1982 outbreak of nosocomial Salmonella saintpaul infection in hospitalized horses at the University of California Veterinary Medical Teaching Hospital in Davis, California, a case-control study was performed using data gathered from the records of 33 cases and 132 controls. Multiple logistic regression risk analysis was used to identify factors associated with isolation of the organism, controlling for the effects of other, possibly confounding variables. Horses receiving parenteral antibiotics were at 10.9 times greater risk of having S. saintpaul isolated than w...
“The grave yawns for the horseman.” Equestrian deaths in South Australia 1973-1983.
The Medical journal of Australia    November 10, 1984   Volume 141, Issue 10 632-635 doi: 10.5694/j.1326-5377.1984.tb113173.x
Pounder DJ.The fatalities associated with the riding and handling of horses in South Australia over the 11-year period 1973-1983 are reviewed. There were 18 deaths, including two sudden natural deaths in the saddle and one drowning. The 15 cases of horse-related trauma represent a death rate of approximately one per million population per annum. Thirteen of the deaths were the result of a head injury after a fall. Nine persons were not wearing protective headgear. The two principal groups at risk were male professional riders with a mean age of 32 years and female amateurs with a mean age of 19 years.
Clinical and pathological studies of brain injuries in horse-riding accidents: a description of cases and review with a warning to the unhelmeted.
Clinical neuropathology    November 1, 1984   Volume 3, Issue 6 253-259 
Ilgren EB, Teddy PJ, Vafadis J, Briggs M, Gardiner NG.We present a clinical and pathological study of brain injuries in horse-riding accidents. Among six fatal cases, all experienced riders varying in age and sex, two were not wearing helmets and four had inadequate protective headgear. Among five non-fatal cases, four wore adequate helmets and only one of these suffered permanent neurological damage. The fifth was not wearing a helmet and although he eventually returned to work, a CT scan following the fall showed a deep-seated perithalamic hematoma. These findings are consistent with those of virtually all other studies in that they suggest tha...
[Seasonal dynamics of equine strongyle larvae and its relations to the risk of infection at pasture]. Hasslinger MA, Bittner G.No abstract available
Electrocution of horses by a “hot” ground.
The Canadian veterinary journal = La revue veterinaire canadienne    March 1, 1983   Volume 24, Issue 3 66 
Brackett JB.No abstract available
Mortality rates and associated factors in equine colic operations – a retrospective study of 341 operations.
The Canadian veterinary journal = La revue veterinaire canadienne    March 1, 1983   Volume 24, Issue 3 76-85 
Pascoe PJ, McDonell WN, Trim CM, Van Gorder J.A retrospective survey of 300 surgical treatments for colic involving 341 interventions was carried out to determine mortality rates and associated factors. These horses had been referred to the Ontario Veterinary College over the period September 1974 to February 1980. Data from the case records was collected and stored on a computer and statistical analysis was carried out using X(2) tests.Fifty percent (150/300) of the horses survived to be discharged from the hospital. Fifty-two horses were euthanized during the operation and another ten horses should have been; if these cases are excluded...
Equestrian Injuries.
The Physician and sportsmedicine    January 1, 1983   Volume 11, Issue 1 90-97 doi: 10.1080/00913847.1983.11708437
Bernhang AM, Winslett G.In brief: It has always been assumed that participants in equestrian sports are at high risk of serious injury and that minor injuries are common. This study of American Horse Shows Association and United States Pony Clubs horse shows tried to determine if shows are as safe as or safer than other sports, what the accident rate is for horse shows, if any factors influence the accident rate, and what types of accidents and injuries occur. There were 290 reported injuries and two deaths in the 984 responding shows. The accident rate per entry was 0.0003. There was no statistically significant rel...
Sports activities and risk of testicular cancer.
British journal of cancer    November 1, 1982   Volume 46, Issue 5 749-756 doi: 10.1038/bjc.1982.267
Coldman AJ, Elwood JM, Gallagher RP.The relationship of testicular seminoma with several factors was explored using a case-control study. Previously recognized associations with cryptorchidism and infantile inguinal hernia were confirmed and relationships were also found with cycling and horse-riding. These findings represent the first relationships of testicular cancer with well-defined postnatal risk factors.
Insurance problems with horses.
The Veterinary record    May 8, 1982   Volume 110, Issue 19 454 doi: 10.1136/vr.110.19.454
Vogel C.No abstract available
Effect of total calorific deprivation on host defence in the horse.
Research in veterinary science    November 1, 1981   Volume 31, Issue 3 369-372 
Naylor JM, Kenyon SJ.Horses were deprived of food but not water for a period of five days. There was a progressive decrease in circulating lymphocyte count and compromised host deference. In vitro phagocytosis of yeast fell from a mean of 97 per cent in fed horses to 78 per cent in horses deprived of food for five days. The Arthus response to intradermal challenge with allergens fell to 57 per cent of fed values. These changes indicated that food deprivation increases the susceptibility to bacterial infections; persistent anorexia in chronic bacterial infections may limit the horse's ability to cast off infection....
[Horse-riding accidents in western Ostergötland – a prospective study 1978-1980].
Lakartidningen    June 10, 1981   Volume 78, Issue 24 2356-2357 
Bröte L, Skau A.No abstract available
Epidemiology of equine influenza, risk by age, breed and sex.
Comparative immunology, microbiology and infectious diseases    January 1, 1980   Volume 3, Issue 1-2 67-73 doi: 10.1016/0147-9571(80)90040-5
Nyaga PN, Wiggins AD, Priester WA.Three hundred and sixty cases of diagnosed equine influenza reported to the Veterinary Medical Data Program (VMDP) of the National Cancer Institute, U.S.A., were tested for the independent effects of age, breed and sex, relative to a reference clinic-hospital population of 84,562 equine patients. Horses of age category 2-6 months showed a significant risk above unity for infection with equine influenza virus whereas, horses in age category 7-10 yr showed a significant, low and sparing risk. Horses under two months or over 10 years, as well as those in ages from 6 months to 7 yr had non-s...
Chronic obstructive pulmonary disease (COPD): factors influencing the occurrence.
Equine veterinary journal    July 1, 1979   Volume 11, Issue 3 167-171 doi: 10.1111/j.2042-3306.1979.tb01332.x
McPherson EA, Lawson GH, Murphy JR, Nicholson JM, Breeze RG, Pirie HM.Breed, age, weight, type of work performed, seasonal onset, poor ventilation and exposure to moulds in the habitat were investigated in relation to the occurrence of chronic obstructive pulmonary disease (COPD). COPD was most commonly detected in showjumping and hacking horses. The older a horse, the more likely it was to become affected although most were 6 to 10 years of age. Of the horses in this sample of the population, which was not a random one, thoroughbred horses were affected least and ponies most often. The high incidence in ponies was related to their more frequent exposure to poor...
[Is horseback riding a dangerous sport?].
Lakartidningen    December 21, 1977   Volume 74, Issue 51 4608-4610 
Lennquist S.No abstract available
[Horseback-riding accidents. I. Frequency of accidents in a horseback-riding population].
Ugeskrift for laeger    July 11, 1977   Volume 139, Issue 28 1687-1689 
Lie HR, Lucht U.No abstract available
Herbicide risk.
The Veterinary record    April 23, 1977   Volume 100, Issue 17 371 doi: 10.1136/vr.100.17.371-b
Cleverly JM.No abstract available
Navicular disease in the horse: risk factors, radiographic changes, and response to therapy.
Journal of the American Veterinary Medical Association    January 15, 1977   Volume 170, Issue 2 183-187 
Ackerman N, Johnson JH, Dorn CR.In a retrospective study, 74 horses met defined historical and clinical features indicative of navicular disease. Most of the affected horses were 4 to 9 years old. Males had a greater risk of navicular disease than females, geldings had a greater risk than stallions, and Quarter Horses had a greater risk than other breeds. Diagnostic radiographic changes were found in 42 of 70 horses examined. The distribution of diagnostic radiographic changes between the right and left fron feet was equal. There was no correlation between the finding of diagnostic radiographic changes and the horse's respon...
Epidemiologic analysis of oral and pharyngeal cancer in dogs, cats, horses, and cattle.
Journal of the American Veterinary Medical Association    December 1, 1976   Volume 169, Issue 11 1202-1206 
Dorn CR, Priester WA.Four hundred sixty-nine oral-pharyngeal malignancies diagnosed in dogs, cats, horses, and cattle and submitted to the Viterinary Medical Data Program between March 1, 1964, and Dec 31, 1974, were analyzed. Of these cases, 84% were in dogs. The most frequent oral-pharyngeal cancer in dogs was melanoma; in cats and horses, it was squamous cell carcinoma. In dogs, the risk of developing melanoma increased more with age than did the risk of developing squamous cell carcinoma and fibrosarcoma. Male dogs had significantly greater risk of developing fibrosarcomas and melanomas than did female dogs. T...
Letter: Brain damage in jockeys.
Lancet (London, England)    June 5, 1976   Volume 1, Issue 7971 1241 doi: 10.1016/s0140-6736(76)92188-7
d'Abreu F.This research article discusses brain injuries in jockeys, particularly in horse racing. The author recounts the preventive measures taken by the Jockey Club and the Betting Levy Board to protect […]
The medical hazards of horse-riding.
The Practitioner    August 1, 1975   Volume 215, Issue 1286 197-200 
Goulden RP.No abstract available
Castration and other factors affecting the risk of equine laminitis.
The Cornell veterinarian    January 1, 1975   Volume 65, Issue 1 57-64 
Dorn CR, Garner HE, Coffman JR, Hahn AW, Tritschler LG.The characteristics of a series of equine laminitis cases were compared with that of other Equidae examined at the University of Missouri Veterinary Hospital and Clinic during May, 1965 through December, 1971. The model age for ponies with laminitis was 7-9 years and for all other cases the model age was 4-6 years. Also the predominant age for mares was 4-6 years and for males was 7-9 years. After controlling for age and breed differences, there were significantly fewer castrated males among the affected males than expected (P small than 0.02), indicating that hormonal factors may play a role ...