{"id":6370,"date":"2026-10-19T09:48:49","date_gmt":"2026-10-19T09:48:49","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-salfraedi-erlendur-egilsson\/"},"modified":"2026-10-19T09:48:49","modified_gmt":"2026-10-19T09:48:49","slug":"doktorsvorn-i-salfraedi-erlendur-egilsson","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-salfraedi-erlendur-egilsson\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed s\u00e1lfr\u00e6\u00f0i – Erlendur Egilsson"},"content":{"rendered":"
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F\u00f6studaginn 18. okt\u00f3ber 2024 ver Erlendur Egilsson doktorsritger\u00f0 s\u00edna \u00ed s\u00e1lfr\u00e6\u00f0i vi\u00f0 S\u00e1lfr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands. Ritger\u00f0in ber heiti\u00f0: Heilsueflandi snjallt\u00e6kjalausn fyrir unglinga – Notkun og brottfall. Adolescent smartphone-based health behavior intervention. Usage and Continuous Attrition.<\/p>\n

Andm\u00e6lendur eru dr. Wendy Silverman, pr\u00f3fessor vi\u00f0 Yale University School of Medicine, og dr. Brynjar Halld\u00f3rsson, d\u00f3sent vi\u00f0 H\u00e1sk\u00f3lann \u00ed Reykjav\u00edk.<\/p>\n

Umsj\u00f3narkennari og lei\u00f0beinandi var dr. Ur\u00f0ur Njar\u00f0v\u00edk, pr\u00f3fessor. Auk hennar s\u00e1tu \u00ed doktorsnefnd dr. Ragnar Gr\u00edmur Bjarnason, pr\u00f3fessor vi\u00f0 H\u00e1sk\u00f3la \u00cdslands, og dr. \u00der\u00fa\u00f0ur Gunnarsd\u00f3ttir, s\u00e1lfr\u00e6\u00f0ingur og doktor \u00ed l\u00fd\u00f0heilsuv\u00edsindum.<\/p>\n

Dr. Ragnar P\u00e9tur \u00d3lafsson, pr\u00f3fessor og deildarforseti S\u00e1lfr\u00e6\u00f0ideildar, stj\u00f3rnar ath\u00f6fninni sem fer fram \u00ed H\u00e1t\u00ed\u00f0asal H\u00e1sk\u00f3la \u00cdslands og hefst kl. 9.00.<\/p>\n

\u00c1grip<\/strong><\/p>\n

Flestir unglingar eiga e\u00f0a hafa a\u00f0gengi a\u00f0 snjallsi\u0301ma og margir \u00feeirra eru flestar vo\u0308kustundir vi\u00f0 si\u0301mann. Minnihluti unglinga notar snjallheilsuhugbu\u0301na\u00f0 se\u0301r til heilsubo\u0301ta. Bili\u00f0 a\u0301 milli a\u00f0gangs a\u00f0 heilsut\u00e6kni og ny\u0301tingu a\u0301 henni vir\u00f0ist umtalsvert og ma\u0301 rekja til y\u0301missa \u00fea\u0301tta, s.s. uppsetningar og ho\u0308nnunar me\u00f0fer\u00f0a auk skorts a\u0301 tru\u0301 a\u0301 hugsanlegan me\u00f0fer\u00f0ara\u0301vinning. \u00dera\u0301tt fyrir a\u00f0 um 10% unglinga se\u0301u greindir me\u00f0 tilfinningaro\u0308skun og enn fleiri gli\u0301mi vi\u00f0 hamlandi tilfinningavanda, \u00fea\u0301 er notkun snjallhugbu\u0301na\u00f0ar til handa ge\u00f0heilsu unglinga so\u0308mulei\u00f0is a\u0301berandi li\u0301til. \u00d3samr\u00e6mi\u00f0 undirstrikar skort a\u0301 a\u0301hrifari\u0301kum heilsutengdum snjalllausnum sem \u00e6tla\u00f0ar eru ge\u00f0heilbrig\u00f0i ungmenna. Rannso\u0301knir a\u0301 snjallu\u0301rr\u00e6\u00f0um fyrir unglinga hafa takmarkast vi\u00f0 skort a\u0301 i\u0301tarlegum, ti\u0301matengdum go\u0308gnum um brottfall, breytilegar skilgreiningar a\u0301 hugtakinu og skort a\u0301 a\u0301st\u00e6\u00f0unum sem liggja a\u00f0 baki virkri \u00fea\u0301ttto\u0308ku unglinga i\u0301 heilsutengdum snjallu\u0301rr\u00e6\u00f0um. I\u0301 doktorsverkefninu hefur veri\u00f0 leitast vi\u00f0 a\u00f0 skilja hvernig ti\u0301\u00f0ni og ti\u0301mi notkunar snjallhugbu\u0301na\u00f0ar, samfelldar m\u00e6lingar a\u0301 brottfalli, o\u0301eigingjo\u0308rn umbun, endurgjo\u0308f a\u0301 notkun auk hvatningar og stu\u00f0nings i\u0301 gegnum leikjav\u00e6\u00f0ingu snjallhugbu\u0301na\u00f0ar fyrir unglinga g\u00e6tu dregi\u00f0 u\u0301r brottfalli.<\/p>\n

Doktorsverkefni\u00f0 beindist a\u00f0 notkunareiginleikum snjallheilsuhugbu\u0301na\u00f0arins SidekickHealth i\u0301 tveimur sex vikna slembirannso\u0301knum me\u00f0al i\u0301slenskra unglinga. A\u00f0ala\u0301hersla var lo\u0308g\u00f0 a\u0301 a\u00f0 sko\u00f0a notkunar- og brottfallsmynstur, se\u0301r i\u0301 lagi hvernig stu\u00f0ningur og leikjav\u00e6\u00f0ing me\u00f0fer\u00f0ar ho\u0308f\u00f0u a\u0301hrif a\u0301 brottfall. \u00c1hrif hugbu\u0301na\u00f0arins a\u0301 daglegar heilsuvenjur voru metnar og me\u00f0 hva\u00f0a h\u00e6tti notkun a\u0301 hugbu\u0301na\u00f0inum stu\u00f0la\u00f0i a\u00f0 aukinni vels\u00e6ld \u00fea\u0301tttakenda. So\u0308mulei\u00f0is var markmi\u00f0i\u00f0 a\u00f0 rannsaka notkunargo\u0308gn og brottfall me\u00f0al ungmenna me\u00f0 markt\u00e6kt hamlandi kvi\u0301\u00f0a- og depur\u00f0areinkenni.<\/p>\n

Ni\u00f0ursto\u0308\u00f0ur \u00feessa verkefnis gefa til kynna markt\u00e6kan mun milli rannso\u0301knarho\u0301pa a\u0301 brottfalli og notkunar hugbu\u0301na\u00f0arins \u00fear sem i\u0301hlutunararmar sem fengu endurgjo\u0308f og stu\u00f0ning voru markt\u00e6kt o\u0301li\u0301klegri til a\u00f0 h\u00e6tta i\u0301 inngripinu, luku markt\u00e6kt fleiri heilsuverkefnum og voru virkir lengur en samanbur\u00f0arho\u0301par. \u00dea\u00f0 eru ni\u00f0ursto\u0308\u00f0ur sem eiga b\u00e6\u00f0i vi\u00f0 um \u00fea\u0301tttakendur me\u00f0 kli\u0301ni\u0301sk kvi\u0301\u00f0a- og depur\u00f0areinkenni og ekki. Ni\u00f0ursto\u0308\u00f0ur doktorsverkefnisins gefa so\u0308mulei\u00f0is til kynna hugsanleg n\u00e6miskei\u00f0 a\u0301 me\u00f0an inngripi stendur. Vi\u00f0 frekari rannso\u0301knir a\u0301 brottfalli me\u00f0al unglinga u\u0301r snjallheilsuu\u0301rr\u00e6\u00f0um v\u00e6ri \u00fevi\u0301 ra\u0301\u00f0legt a\u00f0 leggja a\u0301herslu a\u0301 si\u0301felldar m\u00e6lingar a\u0301 brottfalli og daglegt mynstur heilsuheg\u00f0unar auk \u00feess sem i\u0301tarlegri skilningur a\u0301 a\u0301hrifum leikjav\u00e6dds stu\u00f0nings, o\u0301eigingjarnra ver\u00f0launa og sto\u0308\u00f0ugri perso\u0301nulegri endurgjo\u0308f heilbrig\u00f0isstarfsfo\u0301lks myndi vafalaust draga u\u0301r brottfalli og efla skilvirkni snjallheilsuu\u0301rr\u00e6\u00f0a sem \u00e6tlu\u00f0 eru unglingum.<\/p>\n

Abstract<\/strong><\/p>\n

Smartphone ownership is ubiquitous among adolescents, with many engaging online almost incessantly. Only a minority utilize mobile health (mHealth) applications and significantly few to tackle mental health issues. This gap between access to technology and its application for health benefits may be attributed to a range of factors, including perceived relevance, intervention designs, or a lack of awareness about potential benefits. Despite approximately 10% of adolescents being diagnosed with emotional disorders and more grappling with sub-clinical emotional symptoms, the uptake of mental mHealth solutions is notably low. This dissonance underscores a broader disengagement with digital health resources intended for adolescent mental health. Current research on the matter is hampered by a lack of detailed, temporal data on attrition, combined with diverse definitions of attrition and deficient explorations into the reasons behind varying levels of app engagement. To address these challenges, the thesis has sought to understand how frequency and time of application usage, continuous measures of attrition, altruistic rewards, healthcare feedback and motivational support through gamification of mHealth applications could unlock strategies to mitigate attrition.<\/p>\n

The thesis focused on the acceptability of the mHealth application SidekickHealth for two six-week long randomized controlled trials with Icelandic adolescents, and more importantly examining the patterns of attrition throughout the interventions. Focus was on how motivational support influenced attrition rates. Additionally, the research assessed the app\u2019s impact on daily health habits, contributing to adolescent well-being. Another objective was to study continuous attrition among adolescents with clinical anxiety or depression, analyzing usage data for insights into attrition causes, and determining the intervention\u2019s success in ameliorating these conditions.<\/p>\n

Significant differences in attrition rates and app usage were observed between research groups. Intervention arms receiving motivational support were significantly unlikelier to drop out of interventions, completed significantly more in-app health tasks and were active longer than comparison groups, findings indicated for both adolescents experiencing clinical anxiety and depression and those who were not. The research illuminated potential sensitive periods for health task completion, emphasizing that time-specific attrition and in-app health behavior patterns offers a promising direction for future research, particularly in enhancing engagement and reducing excessively high attrition rates in adolescent mHealth interventions. Integrating motivational support through gamification, altruistic rewards, and ongoing healthcare feedback appears to be a major factor in reaching that outcome.<\/p>\n

Um doktorsefni\u00f0<\/strong><\/p>\n

Erlendur Egilsson er f\u00e6ddur \u00e1ri\u00f0 1982 \u00ed Reykjav\u00edk. Hann lauk BA-pr\u00f3fi \u00ed s\u00e1lfr\u00e6\u00f0i vi\u00f0 \u00c1r\u00f3sah\u00e1sk\u00f3la \u00ed Danm\u00f6rku \u00e1ri\u00f0 2007. Hann \u00fatskrifa\u00f0ist svo sem s\u00e1lfr\u00e6\u00f0ingur (Cand.Psych) fr\u00e1 \u00c1r\u00f3sah\u00e1sk\u00f3la \u00e1ri\u00f0 2009 og h\u00f3f st\u00f6rf sama \u00e1r \u00e1 Landsp\u00edtala H\u00e1sk\u00f3lasj\u00fakrah\u00fasi (LSH). Hann starfa\u00f0i fyrst um sinn \u00e1 g\u00f6ngudeild\u00a0Barna- og unglingage\u00f0deildar LSH en f\u00e6r\u00f0i sig svo yfir \u00e1 Barnasp\u00edtala Hringsins. Erlendur hefur sinnt ranns\u00f3knum \u00e1 \u00feroska- og heg\u00f0un barna og unglinga, s.s.\u00a0einhverfur\u00f3fsr\u00f6skunum, og \u00ed doktorsn\u00e1mi s\u00ednu sko\u00f0a\u00f0 virkni heilsutengdra snjall\u00farr\u00e6\u00f0a fyrir unglinga. Erlendur var \u00fer\u00f3unarstj\u00f3ri s\u00e6nsk-\u00edslenska heilbrig\u00f0ishugb\u00fana\u00f0arfyrirt\u00e6kisins SidekickHealth samhli\u00f0a ranns\u00f3knarst\u00f6rfum en auk \u00feess hann hefur sinnt s\u00e1lfr\u00e6\u00f0ist\u00f6rfum fyrir \u00cd\u00fer\u00f3tta- og \u00f3lymp\u00edusamband \u00cdslands, sem og \u00cd\u00fer\u00f3ttasamband fatla\u00f0ra samhli\u00f0a sj\u00e1lfst\u00e6\u00f0um s\u00e1lfr\u00e6\u00f0ist\u00f6rfum s\u00ed\u00f0astli\u00f0inn \u00e1ratug. Erlendur er \u00ed samb\u00fa\u00f0 me\u00f0 D\u00ed\u00f6nu Rut Kristinsd\u00f3ttur og saman eiga \u00feau fimm b\u00f6rn.<\/p>\n<\/div><\/div>","protected":false},"featured_media":5702,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2024-10-18T09:00:00+00:00","_phd_date_end":"2024-10-18T12:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0asalur","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"Heilsueflandi snjallt\u00e6kjalausn fyrir unglinga - Notkun og brottfall. 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