John Terehoff v Rubin Frenkel
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Attorneys and Parties
Brief Summary
Medical malpractice and the admissibility of expert causation testimony under Frye v. United States [expert scientific evidence is admissible only if the principle or procedure has gained general acceptance in the relevant field], specifically whether prematurity and low birth weight can be presented as causing autism.
The Supreme Court, Kings County, denied the defendants' motion to preclude the plaintiff's causation expert, allowed the autism-causation theory to go to the jury, and entered judgment for the plaintiff after a liability verdict and damages award.
The Appellate Division reversed the judgment insofar as appealed from, granted the branch of the defendants' motion seeking to preclude the plaintiff's causation theory, modified the prior order accordingly, and remitted for a new trial.
The plaintiff's neurology expert relied on observational studies showing association or causal inference between prematurity, low birth weight, and autism, but not general acceptance of actual causation in the medical community. The court found too great an analytical gap between the data and the expert's opinion.
Background
The plaintiff alleged that the defendants, the mother's obstetrician and his practice, negligently failed to diagnose preterm labor. According to the plaintiff, proper diagnosis and treatment would have prolonged the pregnancy by at least two weeks, avoiding the extreme prematurity of birth at 25 weeks and 770 grams. The plaintiff was later diagnosed with autism spectrum disorder-pervasive developmental delay and claimed that the premature birth caused that condition.
Lower Court Decision
Before trial, the defendants sought to preclude expert testimony that prematurity and low birth weight caused the plaintiff's autism. After a Frye hearing, the trial court denied that request. At trial, the plaintiff's obstetrics expert testified that the defendants departed from accepted practice by failing to diagnose preterm labor, and the plaintiff's neurology expert testified that the failure to extend the pregnancy by two weeks was a substantial factor in the autism diagnosis. The jury found liability, awarded damages including $2,250,000 for past pain and suffering, and awarded no damages for future pain and suffering.
Appellate Division Reversal
The Appellate Division held that the expert causation testimony should have been precluded. The court emphasized that New York permits Frye review of causation theories and that association is not the same as medical or legal causation. Because the expert acknowledged that the causes and pathophysiology of autism are unknown and relied only on observational studies showing association, not accepted proof that prematurity causes autism or that birth at 25 weeks rather than 27 weeks increases autism risk, the testimony lacked the necessary scientific foundation. The court therefore reversed the judgment insofar as appealed from, granted preclusion of that causation theory, ordered a new trial, and dismissed the plaintiff's cross-appeal on damages as academic.
Legal Significance
This decision reinforces that, under New York Frye principles, an expert may not transform epidemiological association into admissible causation testimony without objective and legitimate scientific support showing general acceptance of the causal theory. Observational studies and statistical associations, standing alone, are insufficient where the expert cannot bridge the gap between correlation and accepted causation.
In New York medical malpractice cases, expert testimony that a medical condition caused autism must rest on generally accepted scientific support for causation, not merely studies showing association or increased prevalence.