Trial reportBMC pregnancy and childbirth2025
Validation of the intolerance of uncertainty scale-12 in a sample of pregnant people.
Trial report in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06129461 (A Single Session Self-guided Acceptance-based Digital Intervention Targeting Food Cravings as Predictors of Disordered Eating in Pregnant People), which is not on this map. Not yet cited in PubMed.
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A Single Session Self-guided Acceptance-based Digital Intervention Targeting Food Cravings as Predictors of Disordered Eating in Pregnant People
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundIntolerance of uncertainty (IU) has been proposed as a transdiagnostic mechanism driving anxiety, depression, and eating disorder symptoms. Pregnancy is a time of significant uncertainty, yet few studies have examined the measurement of IU and its impacts on pregnant people. The current study aimed to examine the psychometric performance of two versions of the Intolerance of Uncertainty Scale (IUS-27 and IUS-12) and their associations with psychopathologies common in pregnancy.
methodsThis study is a secondary analysis of participants (n = 254) recruited for a larger study of a single-session intervention targeting disordered eating in pregnancy. We examined fit of participant baseline data with IUS-27 and IUS-12 factor structures using confirmatory factor analyses. We also assessed associations between IU and emotion dysregulation and depression and eating disorder symptoms, controlling for age, parity, and perceived social status.
resultsThe IUS-12 provided superior fit to the data (CFI = 0.95; TLI = 0.93; RMSEA = 0.09) compared to the IUS-27. The IUS-12 was significantly (all p < 0.05) correlated with measures of emotion dysregulation (r = 0.67), depression (r = 0.58), and eating disorders (r = 0.37). Inhibitory IU rather than prospective IU was generally significantly associated with greater psychopathology (ß range = 0.46 - 3.51, p's < 0.01).
conclusionsResults from this study provide initial support for the IUS-12 as a valid measure of IU in pregnant people and suggest that IU is strongly associated with measures of depression, emotion dysregulation, and eating disorder behaviors in this population. Severe psychological distress in pregnancy has been linked to complications in gestation and delivery and overall poor birth outcomes. Clinicians and doctors should consider using the IUS-12 as a general measure of psychological distress among pregnant patients.
trial registrationThe trial from which these data were drawn is registered at clinicaltrials.gov, NCT06129461 (registered on November 10, 2023).
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