Comparison · NCT03360539-a56b7406
Treatment - Participation in Nurse Family Partnership vs Control: Number of Participants With a Group B Streptococcus Test (35-37 Weeks)
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Treatment - Participation in Nurse Family Partnership vs Control: Number of Participants With a Group B Streptococcus Test (35-37 Weeks). Trial comparisons, record NCT03360539-a56b7406. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT03360539-a56b7406
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.636 | 0.614 | 0.658 | wilson | |
| Risk in group 2 | 0.68 | 0.649 | 0.71 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0438 | -0.0812 | -0.00551 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.936 | 0.884 | 0.991 | log | |
| Odds ratio, group 1 over group 2 | 0.823 | 0.694 | 0.976 | log | |
| Number needed to treat, for one fewer participant with the outcome on Treatment - Participation in Nurse Family Partnership than on Control | 22.8 | 12.3 | 182 | from the risk difference interval |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: control.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Treatment - Participation in Nurse Family Partnership | NFP is a prenatal and infancy home visiting program for low-income, first-time mothers and their families. Registered nurses begin visiting their clients as early in the pregnancy as possible, helping the mother-to-be make informed choices. The nurses continue visiting regularly until the child is two years old. | 1,150 | 1,807 | OG000 |
| Group 2 | Control | Control group members have access to the standard of care and whatever other programs and services are available in the community. | 602 | 885 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Number of Participants With a Group B Streptococcus Test (35-37 Weeks)
- Description
Received Group B streptococcus test at 35-37 weeks' gestation.~Note: Our original prenatal screening outcome variable included the obstetric panel (D \[Rh\], RBC antibody screen, CBC, urine culture, urinalysis), STI screenings (HIV, syphilis, hepatitis B, chlamydia if \<25, gonorrhea if \<25), Group B strep screening, and glucose screening. However, since most participants had already completed their first prenatal visit prior to enrolling in the trial (when many of these tests are performed), it was not appropriate to include first-visit tests as outcomes. We therefore modified the outcome to instead use three clinically relevant measures that could occur after enrollment: glucose screening, Group B strep screening, and Tdap vaccination. These outcomes are reported as they appear in the published papers.
- Time frame
- At 35-37 weeks' gestation of index pregnancy; Medicaid claims
- Population
Differs from randomized sample as it excludes participants with missing outcome data, an index fetal death, who withdrew, who experienced a pregnancy loss, and who could not be matched to an index pregnancy.
Source ClinicalTrials.gov
Trial
- Title
- Nurse-Family Partnership Impact Evaluation in South Carolina
- NCT number
- NCT03360539
- Phases
- NA
- Conditions
- Preterm Birth, Injuries, Maternal Behavior
- Interventions
- Nurse-Family Partnership
- Lead sponsor
- Harvard School of Public Health (HSPH)
- Results first posted
- 2025-12-12
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT03360539?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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