Trial · NCT07883993
Registered outcomes12
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
1 to 12 of 12
Download this page as JSON| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Percentage of weeks with any user interaction | Weekly from enrollment through delivery or gestational week 41, up to 31 weeks | Binary measure of whether the user gave any response during the specified week. Measured from platform interaction logs. |
| Primary | Mean conversational turns per week | Weekly from enrollment through delivery or gestational week 41, up to 31 weeks | Number of user-initiated messages sent to the chatbot in a given week, averaged across the participant's follow-up weeks. Measured from platform interaction logs. |
| Primary | Mean number of substantive user queries per week | Weekly from enrollment through delivery or gestational week 41, up to 31 weeks | Number of substantive queries sent by the participant in a given week, averaged across her follow-up weeks. A substantive query is a user-initiated free-text message, excluding greetings, acknowledgments, single-word replies, emoji-only messages, system strings, and blanks. The same classification procedure is applied in both arms. Measured from platform interaction logs. |
| Primary | Percentage of weeks with any substantive user query | Weekly from enrollment through delivery or gestational week 41, up to 31 weeks | Binary measure of whether a participant gave any substantive query during the given week, defined as above. Measured from platform interaction logs. |
| Secondary | Percentage of weeks with user response to weekly template message | Weekly from enrollment through delivery or gestational week 41, up to 31 weeks | Binary measure of whether the user responded to the template message of the specified week |
| Secondary | Discernment index from user responses to clinical scenarios | Baseline and gestational weeks 38 to 41, up to 31 weeks | Score from 0 to 2 across a paired scenario battery. Each participant sees one high-severity and one low-severity scenario at baseline and the other pair at endline, so no scenario is answered twice. Each scenario scores 1 for the keyed action and 0 otherwise. High-severity and low-severity accuracy are also reported separately. |
| Secondary | Self-reported prenatal care attendance and health-seeking behaviors | From enrollment through delivery or gestational week 41, up to 31 weeks | Total antenatal care visits during the pregnancy, self-reported by the participant. Visits since enrollment are reported at midline and total visits for the pregnancy at endline. |
| Secondary | Self-reported acute care-seeking | Every 6 to 8 weeks from enrollment through delivery or gestational week 41, up to 31 weeks | The share of reported worrying symptoms for which the participant sought care the same day. Collected through between-survey pulse checks and the midline questionnaire. |
| Secondary | Usability of the chatbot, adapted System Usability Scale | Gestational weeks 28 to 30, up to 20 weeks after enrollment | Mean score across a 5-item usability instrument adapted from the System Usability Scale, with items rated from 1 (strongly disagree) to 5 (strongly agree). Possible range 1 to 5. Higher scores indicate better perceived usability. Negatively worded items are reverse-scored before averaging. |
| Secondary | Net Promoter Score | Gestational weeks 38 to 41 or within one week of delivery, up to 31 weeks | Single survey item asking how likely the participant is to recommend the chatbot to a pregnant friend or family member, rated from 0 (not at all likely) to 10 (extremely likely). Higher scores indicate greater likelihood to recommend. |
| Secondary | Change in knowledge self-efficacy | Baseline, gestational weeks 28 to 30, and gestational weeks 38 to 41, up to 31 weeks | Single survey item, "I feel knowledgeable about my pregnancy," rated from 1 (strongly disagree) to 5 (strongly agree). Higher scores indicate greater self-efficacy. Analyzed as change from baseline. |
| Secondary | Retention assessed as time to last user interaction | From enrollment to gestational week 41, up to 31 weeks | Number of weeks from enrollment to the participant's last interaction with the chatbot. Disengagement is defined as no user interaction of any type for four or more consecutive weeks, with the event dated to the last week containing an interaction. Participants are censored at delivery where the delivery date is known, and at gestational week 41 otherwise. |
Source ClinicalTrials.govtrials-2026-11-12-0.5.0
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
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
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this list from software.
Twenty rows a page, as JSON. No key.
GET https://conductscience.org/api/trials/v1/NCT07883993/registered