Comparison · NCT01857310-sae
Folic Acid and Zinc Supplementation vs Placebo: serious adverse events
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Cite this record
ConductScience Library. Folic Acid and Zinc Supplementation vs Placebo: serious adverse events. Trial comparisons, record NCT01857310-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01857310-sae
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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 | 0.00591 | 0.00286 | 0.0121 | wilson | |
| Risk in group 2 | 0.00422 | 0.0018 | 0.00984 | wilson | |
| Risk difference, group 1 minus group 2 | 0.00169 | -0.0047 | 0.00838 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.4 | 0.446 | 4.4 | log | |
| Odds ratio, group 1 over group 2 | 1.4 | 0.444 | 4.43 | log | |
| Number needed to harm, for one more participant with a serious adverse event on Folic Acid and Zinc Supplementation than on Placebo | 593 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Folic Acid and Zinc Supplementation | 5 mg folic acid and 30 mg elemental zinc, taken orally, daily for 6 months.~5 mg folic acid and 30 mg elemental zinc | 7 | 1,185 | EG000 |
| Group 2 | Placebo | Matching placebo, taken orally daily for 6 months.~Placebo Comparator: Placebo | 5 | 1,185 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
- Adverse events were collected over the 6 month duration of the study.
Source ClinicalTrials.gov
Trial
- Title
- Folic Acid and Zinc Supplementation Trial (FAZST)
- NCT number
- NCT01857310
- Phases
- NA
- Conditions
- Pregnancy, Live Birth, Spontaneous Abortion
- Interventions
- 5 mg folic acid and 30 mg elemental zinc, Placebo Comparator: Placebo
- Lead sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Results first posted
- 2020-11-19
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01857310?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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