QPPV.COM KNOWLEDGE ASSESSMENT

Signal Evaluation: SSRIs and Persistent Pulmonary Hypertension of the Newborn

Test your understanding of the concepts covered by Signal Evaluation: SSRIs and Persistent Pulmonary Hypertension of the Newborn.

Question 1 of 10Pass mark: 80%

Question 1 of 10 Which formulation most accurately represents the initial pharmacovigilance signal described in the article?

Any SSRI exposure at any point in pregnancy causes PPHN Late-pregnancy SSRI exposure may be associated with an increased risk of PPHN Only first-trimester SSRI exposure is associated with PPHN PPHN is an established, class-wide adverse reaction caused by all antidepressants

Question 2 of 10 In evaluating a case of PPHN following SSRI exposure, what does temporal compatibility establish?

It shows that exposure preceded the event in a way compatible with the hypothesis, but it does not establish causality It proves that the SSRI caused the event It excludes maternal and neonatal alternative causes It quantifies the population incidence of PPHN

Question 3 of 10 Why did the seriousness of PPHN contribute to the need to investigate a relatively small number of reported exposed cases?

Serious outcomes require investigation regardless of frequency because their clinical consequences may be substantial Rare outcomes automatically provide stronger evidence of causality Small case numbers eliminate the need for epidemiological studies PPHN is common enough that statistical precision is not relevant

Question 4 of 10 Which finding would provide the strongest support for a causal relationship in future research?

A consistent late-exposure association that persists with an appropriate active comparator and rigorous confounding control A single case report with no exposure-timing information A plausible mechanism without epidemiological evidence A large unadjusted association that disappears after restricting to women with depression

Question 5 of 10 What is the main interpretive limitation of the original adjusted odds ratio of 6.1 from the 2006 case-control study?

It was based on a relatively small number of exposed cases and could not establish reproducibility, absolute risk, or absence of confounding An odds ratio cannot be used in a case-control study A statistically significant result cannot be relevant to pharmacovigilance The estimate directly measured the number of additional cases per 1,000 births

Question 6 of 10 Which conclusion most appropriately reflects the totality of evidence described in the article?

A small causal increase cannot be definitively excluded, but any effect is likely substantially smaller than the original estimate and difficult to separate from maternal and obstetric confounding Late-pregnancy SSRIs definitively cause PPHN with approximately a six-fold increased risk The evidence definitively proves that SSRIs have no effect on PPHN Because PPHN is rare, the signal has no clinical or regulatory relevance

Question 7 of 10 Why should the primary-PPHN analysis in the 2015 study prevent a conclusion that the study demonstrated 'no risk'?

Its adjusted estimate remained compatible with a small increase, with a confidence interval just above 1 It showed an adjusted odds ratio of 6.1 It assessed only early-pregnancy exposure It was based on a randomized controlled trial

Question 8 of 10 Why should the original six-fold estimate not be presented as the established current magnitude of risk?

Later evidence produced substantially smaller estimates, particularly after more rigorous control of confounding The original study did not include any PPHN cases Odds ratios are always invalid for rare outcomes The estimate was based on absolute risk rather than relative risk

Question 9 of 10 Which additional case feature would generally strengthen, but not prove, a drug-specific causal hypothesis?

Confirmed PPHN after continuous late-pregnancy exposure with no major alternative explanation PPHN diagnosed before the first SSRI exposure Multiple established neonatal causes of pulmonary hypertension An incomplete report with no information on timing or diagnosis

Question 10 of 10 Which causal structure best illustrates confounding by indication in this signal?

Depression increases the likelihood of SSRI treatment and depression or related factors also influence PPHN risk SSRI exposure occurs after PPHN and therefore causes it PPHN determines whether a woman received an SSRI during pregnancy The outcome is measured before the exposure in every study

Signal Evaluation: SSRIs and Persistent Pulmonary Hypertension of the Newborn

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