Vitamins vs Placebo: Severe Hypertension
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
Measures 6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note | Source |
|---|---|---|---|---|---|---|
| Risk in group 1 | 0.0421 | 0.0368 | 0.048 | wilson | ClinicalTrials.gov | |
| Risk in group 2 | 0.041 | 0.0358 | 0.0469 | wilson | ClinicalTrials.gov | |
| Risk difference, group 1 minus group 2 | 0.00106 | -0.0068 | 0.00892 | newcombe hybrid score | ClinicalTrials.gov | |
| Risk ratio, group 1 over group 2 | 1.03 | 0.85 | 1.24 | log | ClinicalTrials.gov | |
| Odds ratio, group 1 over group 2 | 1.03 | 0.844 | 1.25 | log | ClinicalTrials.gov | |
| Number needed to treat, for one more participant with the outcome on Vitamins than on Placebo | 942 | from the risk difference interval | the interval includes no difference | ClinicalTrials.gov |
Groups 2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code | Source |
|---|---|---|---|---|---|---|
| Group 1 | Vitamins | Vitamins C \& E | 210 | 4,993 | OG000 | ClinicalTrials.gov |
| Group 2 | Placebo | Mineral Oil, Hydrogenated Vegetable Oil, Lecithin, Yellow wax, Soft Gelatin Shell | 204 | 4,976 | OG001 | ClinicalTrials.gov |
Outcome 5
| Field | Value | Source |
|---|---|---|
| Type | PRIMARY | ClinicalTrials.gov |
| Title | Severe Hypertension | ClinicalTrials.gov |
| Description | Included here are women who had severe hypertension only and those who had severe hypertension with elevated liver enzyme levels, thrombocytopenia, elevated serum creatinine levels, eclamptic seizure, medically indicated preterm birth, fetal-growth restriction, or fetal death after 20 weeks of gestation, or neonatal death. | ClinicalTrials.gov |
| Time frame | 20 weeks through discharge following delivery | ClinicalTrials.gov |
| Population | ClinicalTrials.gov |
Trial 8
| Field | Value | Source |
|---|---|---|
| Title | Combined Antioxidant and Preeclampsia Prediction Studies (CAPPS) | ClinicalTrials.gov |
| NCT number | NCT00135707 | ClinicalTrials.gov |
| Phases | PHASE3 | ClinicalTrials.gov |
| Conditions | Preeclampsia | ClinicalTrials.gov |
| Interventions | Dietary Supplement/Vitamins, Placebo for Vitamin C and Vitamin E | ClinicalTrials.gov |
| Lead sponsor | The George Washington University Biostatistics Center | ClinicalTrials.gov |
| Results first posted | 2018-11-20 | ClinicalTrials.gov |
| Results on ClinicalTrials.gov | https://clinicaltrials.gov/study/NCT00135707?tab=results | ClinicalTrials.gov |
Source 4
| Field | Value | Source |
|---|---|---|
| Release | trial-comparisons-2026-03-23-0.1.0 | ClinicalTrials.gov |
| Release manifest SHA-256 | f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57 | ClinicalTrials.gov |
| AACT copy | 2026-03-23 | ClinicalTrials.gov |
| 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 | ClinicalTrials.gov |
Release trial-comparisons-2026-03-23-0.1.0
ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.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.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.
ClinicalTrials.gov: none 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.