OFA Canine Health Disease Statistics Scraper

Retrieves breed-level disease prevalence statistics from the Orthopedic Foundation for Animals (OFA) database. For each disease, the actor returns per-breed evaluation counts and percentage breakdowns used by pet-insurance actuaries and AKC breeder compliance auditors.

What it does

The actor fetches the OFA's comprehensive disease statistics endpoint and parses every disease section into structured records. Each record represents a single breed's performance for a single disease, including:

• Breed name and rank within the disease category
• Total number of OFA evaluations for that breed
• Percentage breakdowns by outcome (normal, dysplastic, borderline, mild, moderate, severe, equivocal, abnormal, excellent, good, fair — depending on the disease)

Supported diseases

The actor covers all diseases published in the OFA disease statistics database, including:

• Orthopedic: Hip Dysplasia (HIPS), Elbow Dysplasia (ELBOW), Patellar Luxation, Legg-Calvé-Perthes, Shoulder
• Cardiac: Advanced Cardiac, Basic Cardiac, Congenital Cardiac
• Eye diseases: 30+ conditions including cataracts, choroidal hypoplasia, progressive retinal atrophy, and more
• DNA-based tests: Hundreds of breed-specific genetic disease tests
• Other phenotypic: Thyroid, RFGS (Respiratory Function Grading Scheme), Sebaceous Adenitis, and more

Use cases

• Pet insurance underwriting — OFA breed-prevalence rates are the actuarial baseline for canine health premiums
• AKC and breed-club compliance auditing — OFA clearances are a minimum standard in responsible-breeder codes of ethics
• Veterinary epidemiology and research
• Breeder marketing copy and health transparency reports

Input

Field	Type	Default	Description
maxItems	integer	10	Maximum number of breed-disease records to return. Set to 0 for no limit.

Output

Each record in the dataset represents one breed's statistics for one disease:

{
  "disease_category": "ADVANCED CARDIAC",
  "disease_slug": "advanced-cardiac",
  "breed_name": "BULL TERRIER",
  "rank_within_breed_total": 1,
  "breed_total_evaluations": 246,
  "percent_normal": 70.3,
  "percent_equivocal": 7.7,
  "percent_abnormal": 21.5,
  "statistic_source_url": "https://api.ofa.org/api/ds.php",
  "methodology_note": "OFA breed-prevalence statistics; breeds with <50 evaluations are excluded.",
  "scraped_at": "2026-06-01T19:53:04.736Z"
}

Percentage fields present depend on the disease type. Hip dysplasia records include percent_excellent, percent_good, percent_fair, percent_borderline, percent_mild, percent_moderate, and percent_severe. Cardiac records use percent_normal, percent_equivocal, and percent_abnormal.

Notes

• Data source: https://api.ofa.org/api/ds.php (OFA's public statistics endpoint)
• Breeds with fewer than 50 evaluations are excluded from the OFA dataset
• Trend-by-birth-year tables are skipped; only breed-summary tables are extracted