{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T14:49:28Z","timestamp":1785854968925,"version":"3.56.0"},"reference-count":93,"publisher":"JMIR Publications Inc.","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JMIR Mhealth Uhealth"],"abstract":"\n Background<\/jats:title>\n Obsessive-compulsive disorder (OCD) is the third most prevalent mental health disorder in Singapore, with a high degree of burden and large treatment gaps. Self-guided programs on mobile apps are accessible and affordable interventions, with the potential to address subclinical OCD before symptoms escalate.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n This randomized controlled trial aimed to examine the efficacy of a self-guided OCD program on the mobile health (mHealth) app Intellect in improving subclinical OCD and maladaptive perfectionism (MP) as a potential moderator of this predicted relationship.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n University students (N=225) were randomly assigned to an 8-day, self-guided app program on OCD (intervention group) or cooperation (active control). Self-reported measures were obtained at baseline, after the program, and at a 4-week follow-up. The primary outcome measure was OCD symptom severity (Obsessive Compulsive Inventory\u2013Revised [OCI-R]). Baseline MP was assessed as a potential moderator. Depression, anxiety, and stress (Depression Anxiety and Stress Scales-21) were controlled for during statistical analyses.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n The final sample included 192 participants. The intervention group reported significantly lower OCI-R scores compared with the active control group after the intervention (partial eta-squared [\u03b7p2]=0.031; P=.02) and at 4-week follow-up (\u03b7p2=0.021; P=.044). A significant, weak positive correlation was found between MP and OCI-R levels at baseline (r=0.28; P<.001). MP was not found to moderate the relationship between condition and OCI-R scores at postintervention (P=.70) and at 4-week follow-up (P=.88).<\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n This study provides evidence that the self-guided OCD program on the Intellect app is effective in reducing subclinical OCD among university students in Singapore. Future studies should include longer follow-up durations and study MP as a moderator in a broader spectrum of OCD symptom severity.<\/jats:p>\n <\/jats:sec>\n \n Trial Registration<\/jats:title>\n ClinicalTrials.gov NCT06202677; https:\/\/clinicaltrials.gov\/study\/NCT06202677<\/jats:p>\n <\/jats:sec>","DOI":"10.2196\/63316","type":"journal-article","created":{"date-parts":[[2024,11,12]],"date-time":"2024-11-12T06:08:08Z","timestamp":1731391688000},"page":"e63316","source":"Crossref","is-referenced-by-count":5,"title":["Efficacy of the mHealth App Intellect in Improving Subclinical Obsessive-Compulsive Disorder in University Students: Randomized Controlled Trial With a 4-Week Follow-Up"],"prefix":"10.2196","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2881-7827","authenticated-orcid":false,"given":"Madeline","family":"Lee Yoon 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