115. Results of a Targeted Neonatal Screening Program for Congenital Cytomegalovirus Infection in Montreal, Quebec
Bibliographic record
Abstract
Abstract Background There remains considerable debate on the role of symptomatic, targeted vs. universal screening of newborns for congenital cytomegalovirus infection (cCMV). Here we report on a hospital-based targeted screening program for (1) infants who failed their newborn hearing screen and (2) infants of HIV-infected women, and compare this to the prevalence among infants tested for CMV following clinical suspicion of a congenital infection. Methods In November 2013, the “Programme québécois de dépistage de la surdité chez les nouveau-nés” (PQDSN), a provincially mandated hearing screening program, was implemented at Centre Hospitalier Universitaire Sainte-Justine, a tertiary maternal-child health center in Montreal, Quebec, along with CMV screening for all infants who failed their hearing test (excluding patients in the neonatal intensive care unit). Concurrently, beginning in April 2013, all infants of HIV-infected women were screened for cCMV infection within 48 hours of birth. The birth prevalence of cCMV infection in these targeted populations was compared with the prevalence among newborns tested for a clinical suspicion of cCMV. Results Out of 11 734 newborns screened for hearing through the PQDSN program between April 2014 and March 2018, 536 failed their initial hearing screen and 4 of these newborns tested positive for cCMV infection (0.75%). Out of a total of 130 HIV-exposed newborns born during this period, 116 were screened for cCMV and 3 (2.6%) confirmed positive. An additional 455 newborns were identified by the attending pediatrician as having a risk factor for any congenital infection; of these, 22 (5.3%) tested positive for cCMV. Using these combined methods, a total of 0.24% of newborns enrolled in the PQDSN program tested positive for cCMV infection. Conclusion The overall birth prevalence of cCMV was 0.75% among infants who failed their hearing screen, 2.6% among HIV exposed newborns, and 5.3% among infants with a clinical suspicion of a congenital infection. In the absence of a universal screening program for newborns, these results reinforce the importance of maintaining a high index of clinical suspicion for cCMV infection. Disclosures All authors: No reported disclosures.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".