DOI: 10.5061/dryad.vt4b8gv39
title: Data from: Online prenatal trial in mindfulness sleep management (OPTIMISM)

description: This is a two-arm, parallel-group randomized controlled trial. A total of
 45 pregnant women between 12 and 28 weeks gestation were recruited from
 the community and randomly assigned to a mindfulness or education-only
 control group in a 1:1 ratio. During the study, all participants completed
 six weekly online modules, daily sleep diaries, and optional participation
 in a treatment-specific online discussion forum. Feasibility outcome
 measures included study recruitment, retention, intervention adherence
 (number of online modules completed, number of meditation days per week),
 and intervention acceptability (8-item questionnaire). The primary
 clinical outcome measure was sleep quality measured with the Pittsburgh
 Sleep Quality Index. Secondary outcome measures included sleep measured
 with actigraphy and diaries (sleep efficiency, total sleep time, total
 wake time), Patient-Reported Outcomes Measurement Information System
 (PROMIS) measures (fatigue, sleep-related impairment, sleep disturbance);
 mood (depression, anxiety, positive affect, quality of life); and
 self-management and behavior change (potential self-efficacy,
 self-regulation, sleep problem acceptance, and trait mindfulness).
 Assessments occurred at baseline and post-intervention; an additional
 acceptability survey was completed 4 weeks postpartum.
description: Study survey data were collected and managed using Research
 Electronic Data Capture (REDCap). Objective sleep data were collected
 using a combination of daily sleep diaries and nighttime actigraphy with
 an Actiwatch Spectrum Plus (Philips Respironics, Murrysville, PA).
 Participants were asked to wear the actigraph and keep sleep diaries for 8
 days at baseline and post-intervention. Actigraphy-measured sleep
 variables included total sleep time (TST), defined as the number of
 minutes of all time spent asleep; sleep efficiency (SE), a measure of
 sleep quality calculated as the ratio of TST divided by total time in bed
 ×100, with values closer to 100 meaning more efficient (better) sleep;
 sleep onset latency (SOL), defined as the number of minutes from getting
 into bed to falling asleep; total wake time (TWT), defined as the total
 number of minutes spent awake during the rest period; and wake after sleep
 onset (WASO), defined as the number of minutes awake between time falling
 asleep and wake time.
description: # Data from: Online prenatal trial in mindfulness sleep management
 (OPTIMISM)
 [https://doi.org/10.5061/dryad.vt4b8gv39](https://doi.org/10.5061/dryad.vt4b8gv39) ## Description of the data and file structure This study tested an online mindfulness-based intervention for pregnant women with insomnia.  Self-report surveys and objective sleep monitoring were collected pre-intervention and post-intervention in two groups:  mindfulness intervention and education-only control.  ### Files and variables #### File: OPTIMISM\_actigraphy\_summary\_03052025.xlsx **Description:** This file contains participants' sleep-actigraphy data pre-intervention and post-intervention. Mean values are reported over up to 8 days (nights) of measurement. ##### Variables * ID:  unique participant identifier * Intervention: allocation to intervention or control group * no_of_days_of diary_or_actigraphy1: pre-intervention number of days sleep data recorded using diaries and actigraphy * avg_Time_in_bed1: pre-intervention average total time in bed determined by sleep diary (minutes) * avg_Total_sleep time1: pre-intervention average total sleep time determined by actigraphy (minutes) * avg_Total_wake_time1: pre-intervention average total wake time determined by actigraphy (minutes) * avg_Sleep_onset_latency1: pre-intervention average time in bed until fell asleep determined by actigraphy (minutes) * avg_Wake_after_sleep_onset1: pre-intervention average time awake after sleep onset determined by actigraphy (minutes) * avg_Sleep_efficiency1: pre-intervention average total sleep efficiency calculated from actigraphy (minutes) * no_of_days_of diary_or_actigraphy2: post-intervention number of days sleep data recorded using diaries and actigraphy * avg_Time_in_bed2: post-intervention average total time in bed determined by sleep diary (minutes) * avg_Total_sleep time2: post-intervention average total sleep time determined by actigraphy (minutes) * avg_Total_wake_time2: post-intervention average total wake time determined by actigraphy (minutes) * avg_Sleep_onset_latency2: post-intervention average time in bed until fell asleep determined by actigraphy (minutes) * avg_Wake_after_sleep_onset2: post-intervention average time awake after sleep onset determined by actigraphy (minutes) * avg_Sleep_efficiency2: post-intervention average total sleep efficiency calculated from actigraphy (minutes) #### File: OPTIMISM\_Survey\_Outcomes\_Final(2025-02-13).xlsx **Description:** This file contains participant survey data pre-intervention and post-intervention. A data dictionary is available in the second tab of the Excel file. ##### Variables * ID:  unique participant identifier **Demographics** * Intervention: allocation to intervention or control groups * age: age in years (redacted to remove partial identifiers) * race: self-selected racial identity (redacted to remove partial identifiers) * ethnicity: self-selected ethnicity (Hispanic or not) (redacted to remove partial identifiers) * education: participant's highest level of education (redacted to remove partial identifiers) * employment status: participant's employment status (redacted to remove partial identifiers) * Please specify:  free text for "other" employment status (redacted to remove partial identifiers) * Maritalstatus: marital status or partnership status (redacted to remove partial identifiers) * householdmember: number of people living in participant's in the household (redacted to remove partial identifiers) **Five Facet Mindfulness Questionnaire Short Form** * FFMQ_1: pre-intervention Five Facet Mindfulness Questionnaire (FFMQ) score * FFMQ_2: post-intervention Five Facet Mindfulness Questionnaire (FFMQ) score **Pittsburgh Sleep Quality Index** * psqi_duration_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) sleep duration item * psqi_duration_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) sleep duration item * psqi_sleepdisturbance_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) sleep disturbance item * psqi_sleepdisturbance_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) sleep disturbance item * psqi_sleeplatency_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) sleep latency item * psqi_sleeplatency_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) sleep latency item * psqi_daydysfunction_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) daytime dysfunction item * psqi_daydysfunction_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) daytime dysfunction item * tmphse_1: pre-intervention sleep efficiency percentage * tmphse_2: post-intervention sleep efficiency percentage * sleepefficiency_score_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) calculated sleep efficiency * sleepefficiency_score_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) calculated sleep efficiency * psqi_sleepquality_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) sleep quality * psqi_sleepquality_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) sleep quality * psqi_needmeds_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) needing medications to sleep item * psqi_needmeds_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) needing medications to sleep item * psqi_total_1: pre-intervention Pittsburgh Sleep Quality Index (PSQI) total score * psqi_total_2: post-intervention Pittsburgh Sleep Quality Index (PSQI) total score **Other Outcome Measures** * sleep_disturbance_1: pre-intervention PROMIS measure Sleep Disturbance T-score * sleep_disturbance_2: post-intervention PROMIS measure Sleep Disturbance T-score * SRI_1: pre-intervention Sleep Related Impairment (SRI) score * SRI_2: post-intervention Sleep Related Impairment (SRI) score * self_efficacy_1: pre-intervention PROMIS Self-Efficacy Emotion Management Short Forms T-score * self_efficacy_2: post-intervention PROMIS Self-Efficacy Emotion Management Short Forms T-score * pawb_1: pre-intervention Neuro-QOL Positive Affect and Well-Being Short Form * pawb_2: post-intervention Neuro-QOL Positive Affect and Well-Being Short Form * fatigue_1: pre-intervention PROMIS Fatigue Short Form  * fatigue_2: post-intervention PROMIS Fatigue Short Form * self_regulation_1: pre-intervention Index of Self-Regulation (ISR) score * self_regulation_2: post-intervention Index of Self-Regulation (ISR) score * spaq_1: pre-intervention Sleep Problem Acceptance Questionnaire (SPAQ) score * spaq_2: post-intervention Sleep Problem Acceptance Questionnaire (SPAQ) score **Short Form Health Survey (SF_36) Questionnaire** * sf36_physfunc_1: pre-intervention Physical Functioning subscale score * sf36_physfunc_2: post-intervention Physical Functioning subscale score * sf36_role_lim_1: pre-intervention Role Limitations due to Physical Health subscale score * sf35_role_lim_2: post-intervention Role Limitations due to Physical Health subscale score * sf36_role_lim_emotion_1: pre-intervention Role Limitations due to Emotional Problems subscale score * sf36_role_lim_emotion_2: post-intervention Role Limitations due to Emotional Problems subscale score * sf36_energy_1: pre-intervention Energy/Fatigue subscale score * sf36_energy_2: post-intervention Energy/Fatigue subscale score * sf36_emotionalwellbeing_1: pre-intervention Emotional Wellbeing subscale score * sf36_emotionalwellbeing_2: post-intervention Emotional Wellbeing subscale score * sf36_socialfunctioning_1: pre-intervention Social Functioning subscale score * sf36_socialfunctioning_2: post-intervention Social Functioning subscale score * sf36_pain_1: pre-intervention Pain subscale score * sf36_pain_2: post-intervention Pain subscale score * sf36_generalhealth_1: post-intervention General Health Subscale score * sf36_generalhealth_2: post-intervention General Health Subscale score * epds_1: pre-intervention Edinburgh Postnatal Depression Scale score * epds_2: post-intervention Edinburgh Postnatal Depression Scale score * anxiety_1: pre-intervention PROMIS Emotional Distress - Anxiety Short Form score * anxiety_2: post-intervention PROMIS Emotional Distress - Anxiety Short Form score * sf36_total_1: pre-intervention Short Form Health Survey total score * sf36_total_2:  post-intervention Short Form Health Survey total score Data are provided in Excel files.  A second tab in each file includes a data dictionary with an explanation of the variable names and the codes (possible values) for each variable.