A Mobile App–Based Intervention Program for Nonprofessional Caregivers to Promote Positive Mental Health: Randomized Controlled Trial

Carme Ferré-Grau   ^{1 *} , RN, BSc, MSN, PhD ;   Laia Raigal-Aran   ^{1 *} , RN, BSc, MSN, PhD ;   Jael Lorca-Cabrera   ² , RN, MSc ;   Teresa Lluch-Canut   ³ , RN, BSc, MSc, PhD ;   Maria Ferré-Bergadà   ⁴ , BSc, PhD ;   Mar Lleixá-Fortuño   ⁵ , RN, BSc, MSc, PhD ;   Montserrat Puig-Llobet   ³ , RN, MSc, PhD ;   Maria Dolores Miguel-Ruiz   ⁶ , RN, MSc, PhD ;   Núria Albacar-Riobóo   ² , RN, MSc, PhD

¹ Department of Nursing, Universitat Rovira i Virgili, Tarragona, Spain

² Department of Nursing, Universitat Rovira i Virgili, Tortosa, Spain

³ Department of Public Health, Mental Health and Maternal-Child Nursing, School of Nursing, University of Barcelona, Barcelona, Spain

⁴ Department of Computer Engineering and Mathematics, Universitat Rovira i Virgili, Tarragona, Spain

⁵ Territorial Health Services of Terres de l’Ebre, Catalan Health Institute, Tortosa, Spain

⁶ Department of Mental Health, Campus Docent Sant Joan de Déu-–Fundació Privada, University of Barcelona, Barcelona, Spain

*these authors contributed equally