Results on secondary outcomes following a three-month personalised app-based life-style intervention amongst working adults: a three-armed randomized managed trial

Study design

The Health Integrator research was a three-armed parallel RCT. We randomized members 1:1:1 to a personalised app-based life-style intervention with app and an preliminary session with a well being coach (app group), app with an preliminary session and extra month-to-month coach help (app-coach group), or to a management group. Inclusion standards had been: at the least 18 years previous, in a position to learn and perceive Swedish, entry to and in a position to make use of a smartphone. We began recruitment and the baseline information assortment in April 2018 and completed it in September 2018. The follow-up assessments had been finalized in April 2019. These dates had been consistent with the research protocol⁵¹.

Details on the research design might be discovered elsewhere⁵¹. In abstract, the research lasted for six months for every participant and comprised assessments at three time factors: baseline, and three- and six-months follow-up. Participants had been randomized by intercourse in blocks of six inside every worksite, utilizing a random allocation record generated by the creator SEB utilizing Stata. Each new participant was sequentially assigned to the following accessible place on the record at enrolment. Sample measurement was primarily based on the first final result of health-related high quality of life. Prior to check begin, we calculated that 63 members per group had been ample to detect a distinction of eight factors (SD 16) within the basic well being area of health-related high quality of life questionnaire RAND-36⁵¹. This calculation was primarily based on 80% energy, a two-sided alpha degree of .05 and the beforehand reported clinically significant distinction⁵⁴. Participants within the intervention teams acquired the three-month lengthy intervention at baseline. To restrict drop-out, members within the management group acquired the intervention on the three-month follow-up. Therefore, we have now solely used information from baseline and the three-month follow-up to look at the impact of the intervention on life-style behaviours.

Study members

We recruited members from 4 completely different worksites in Stockholm, Sweden. Two of the worksites had been outlined as white collar (workplace workers) and two as blue collar (bus drivers). The rationale for recruiting from the completely different worksites was to extend heterogeneity in traits, life-style behaviours, and environments. Based on communication with representatives on the Human Resources Departments on the completely different worksites, members had been recruited in two other ways. To the workplace workers, the Human Resources Department despatched an inquiry electronic mail concerning the research. For the bus drivers, research personnel had been current in particular person on the bus garages and those that had been offered their personal electronic mail addresses, because the employer had no file of electronic mail addresses. Convenience sampling was used and all workers at any worksite may take part in the event that they fulfilled the inclusion standards. Those focused on collaborating signed up for the research digitally after which downloaded the smartphone-app developed for the research, the Health Integrator app^33,51. Through the app, they offered their knowledgeable consent to take part within the research and thereafter they offered their private data, responded to a well being profile, and stuffed out a analysis questionnaire. The well being profile included questions on the six completely different life-style behaviours: bodily exercise, weight loss program, alcohol, sleep, stress and smoking. The analysis questionnaire was roughly fifty pages (screens) with 2–10 objects per web page. Completeness was mechanically checked. A singular identifier was connected to every electronic mail, thereby hindering members from registering a couple of response to every questionnaire.

After finalizing the questionnaire, the members scheduled themselves for the baseline research assembly with a well being coach, which occurred on the participant’s worksite. Two well being coaches had been concerned within the research. Each participant was assigned to the identical coach all through all time factors. The members had been consecutively allotted and evenly distributed between the 2 coaches throughout worksites and research teams. At the baseline assembly, the well being coach collected a written knowledgeable consent, carried out anthropometric measurements after which knowledgeable the members about their group allocation. Due to the character of the research, members and research personnel had been unblinded to the group allocations. The well being profile, the analysis questionnaire and the anthropometric measurements had been repeated on the three-month follow-up.

Prior to the beginning of the research, a standardized technique was established to make sure consistency within the conduct of research conferences and well being teaching classes. The teaching technique was primarily based on the Self-Determination Theory with the goal to encourage curiosity and preliminary motivation whereas supporting members’ sense of competence and autonomy⁵⁵. Participants had been guided to formulate SMART targets, i.e. particular, measurable, action-oriented, practical, time-bound, and accepted (self-determined)⁵⁶.

Intervention

In addition to the assessments on the baseline assembly, members within the two intervention teams reviewed a color-coded abstract of the non-public well being profile. Based on this, the participant and the coach collectively recognized a number of life-style behaviours to focus on within the subsequent three months. Thereafter, within the Health Integrator app, a brand new function was activated for members assigned to the intervention teams. They had been now in a position to select from intervention companies focusing on bodily exercise, weight loss program, alcohol, sleep, stress and smoking, for instance a gymnasium membership, a 12-week weight loss program and bodily exercise program, or a stress-reducing mindfulness program, Fig. 2. Participants may select a number of companies focusing on completely different behaviours and didn’t must pay for the app nor the chosen companies. The intervention solely focused life-style behavioural change and was based on Social Cognitive Theory, with a selected emphasis on self‑efficacy and self‑regulation⁵⁷. In addition, the intervention integrated parts in step with Self‑Determination Theory, most notably the emphasis on autonomy via the personalised design of the intervention⁵⁵. Further, relying on the chosen intervention companies, particular behaviour‑change methods had been utilized, together with objective setting, self‑monitoring, and reinforcement⁵⁸.

The different textual content for this picture might have been generated utilizing AI.

Available companies within the Health Integrator research, a three-month randomized managed trial, carried out amongst working adults in Sweden. The numbers in parentheses characterize what number of members that focused every particular behaviour, amongst these included in analyses (n = 180). Participants may select a number of companies and companies focusing on completely different behaviours. CBT= Cognitive Behavioural Therapy, ECG= Electrocardiogram.

In addition to the companies, members within the app-coach group additionally acquired classes by way of phone with their well being coach twice (after one and after two months) throughout the intervention interval. These teaching classes aimed to construct on what was mentioned at baseline, together with the participant’s targets and the usage of the chosen companies, in addition to to debate if any changes to the plan, or the targets, had been wanted. Session durations had been roughly 20–30 min.

Participants within the app group and the management group didn’t obtain any teaching help.

Characteristics

Participants’ peak and weight had been measured and used to calculate BMI (kg/m²). Sex, schooling degree, kind of labor, and date of beginning had been self-reported within the questionnaire. Age was calculated utilizing date of beginning and date of research assembly.

Outcomes

Physical exercise

In the analysis questionnaire, members reported their weekly minutes of on a regular basis exercise (e.g. strolling, biking, gardening) and train (e.g. working, gymnastics, ball sports activities) utilizing two questions developed by the Swedish National Board of Health and Welfare and validated for medical follow^59,60. For on a regular basis exercise, response alternate options had been: no time, < 30 min, 30–60 min, 60–90 min, 90–150 min, 150–300 min and > 300 min (5 h). For train, response alternate options had been: nearly by no means, < 30 min, 30–60 min, 60–90 min, 90–120 min and > 120 min. Responses had been transformed to numeric variables utilizing the imply worth of intervals or the desired numbers for the bottom and highest classes. We additionally created a mixed variable of complete bodily exercise by summarizing the 2 questions. For information evaluation, on a regular basis exercise (min/week), train (min/week) and complete bodily exercise (min/week) had been retrieved.

For baseline traits, the members’ bodily exercise ranges had been in contrast towards the weekly suggestion of 150 min of reasonable depth or 75 min of vigorous depth³⁵. Everyday exercise was added to the doubled minutes of train, and every participant was outlined as both reaching the advice or not³⁵.

Diet

Diet was assessed within the analysis questionnaire utilizing a validated 92-item Food Frequency Questionnaire (FFQ)⁶¹. Portion sizes had been both predefined within the FFQ or estimated utilizing normal portion sizes. To calculate common each day vitality consumption, we utilized the Swedish National Food Agency’s meals database⁶². For information evaluation, vitality consumption (kilocalorie [kcal]/day), fruit (g/day), greens (g/day) and fruit and greens mixed (g/day) had been retrieved.

Alcohol consumption

The FFQ within the analysis questionnaire additionally included questions on frequency and quantity of consumption for low-alcohol beer, medium-strength beer, robust beer, white wine, crimson wine, dessert wine and liquor. The frequency and quantity of every merchandise had been used to summarize common consumption, expressed as models per day, comparable to variety of normal models containing 12 g of alcohol. For information evaluation, the typical variety of normal models of alcohol consumed (models/day) was retrieved.

Sleep

Selected questions from the Karolinska sleep questionnaire⁶³ had been used to evaluate sleep within the analysis questionnaire. Participants had been requested to report the time they went to mattress the earlier evening, how lengthy it took them to go to sleep, and what time they wakened this morning. For information evaluation, time in mattress (h/evening) and sleep length (h/evening) had been retrieved.

Stress

We assessed stress within the analysis questionnaire utilizing the Perceived Stress Scale^63,64 which includes fourteen objects with two subscales: the negativity subscale (seven objects) and the positivity subscale (seven objects). Responses had been coded from zero to 4, with the positively said questions reversely coded. The complete scores vary from 0 to 56, the place the next rating signifies larger ranges of perceived stress. For information evaluation, stress (rating) was retrieved.

Smoking

Current smoking habits had been assessed within the well being profile. The response choices that began with “No” had been adopted by “I have never been a smoker”, “but I quit smoking more than 6 months ago” or “but I quit smoking less than 6 months ago”. The choices that began with “Yes” had been adopted by “but not every day”, “I smoke 1–9 cigarettes per day”, “I smoke 10–19 cigarettes per day” or “I smoke more than 19 cigarettes per day”. Never and former people who smoke had been categorized as non-smokers, whereas present people who smoke had been categorized as people who smoke. For information evaluation, present smoking standing (smoker, non-smoker) was retrieved.

Ethical issues

The research was carried out in accordance with the Declaration of Helsinki, permitted by the Regional Ethical Review board in Stockholm, Sweden (2018/411 − 31 and 2018/1038-32), and registered at ClinicalTrials.gov on May 6, 2018 (NCT03579342). Participation within the research was voluntary, and all members offered knowledgeable consent. All collected information was de-identified by changing private identifiers with a research ID quantity. The key linking these numbers to particular person members was saved individually from the opposite collected information. All outcomes are reported on group degree. Further, particular person outcomes weren’t disclosed to the respective worksites, guaranteeing participant confidentiality. No monetary or different compensation was supplied for participation. All collected information was saved at protected servers at Karolinska Institutet, Sweden.

Statistical analyses

Descriptive statistics are introduced utilizing imply and SD for steady variables and frequencies and percentages (%) for categorical variables, each for all members and individually for every research group. Analysis of variance and chi-squared assessments had been used to check baseline traits between the teams. The two intervention teams had been in contrast relating to the distribution of every goal behaviour and the variety of focused behaviours utilizing chi-squared assessments.

For all analyses of the intervention results, an intention-to-treat strategy was utilized. In different phrases, members had been consecutively evaluated primarily based on their group allocation no matter their adherence to the intervention. We had no entry to adherence information on their chosen intervention companies, i.e. we have no idea to what extent members, for instance, utilized their gymnasium membership or carried out mindfulness workouts.

For the primary analyses, the intervention impact on the continual outcomes had been examined utilizing sturdy linear regression fashions, since we had two time factors for assessments⁶⁵ and to reduce the affect of outliers among the many residuals. The distinction between baseline and follow-up for every final result was calculated and used because the dependent variable in linear regression fashions. The variations had been examined in relation to group allocation utilizing the management group as reference and fashions had been adjusted for baseline values of every final result, as advisable by Twisk et al.⁶⁵. Smoking was the one categorical final result, nonetheless, on account of few people who smoke at baseline (n = 13) we couldn’t analyse the intervention impact.

To study any distinction between members who remained or dropped out within the research, we carried out Little’s lacking utterly at random check and noticed statistical significance (p<.001). Further, we in contrast baseline traits between those that remained or dropped out utilizing impartial t-test (age) and chi-squared assessments (intercourse and schooling degree). The distinction was neither statistically vital for age (p = .90), nor for schooling degree (p=.07), nonetheless, the next proportion of males (n = 21/24) than females (n = 3/24) dropped out (p=.006, φ = 0.19). Therefore, to account for lacking information at follow-up, we performed two varieties of sensitivity analyses on the primary outcomes and included all members with accessible baseline information (n = 204). First, the final commentary carried ahead technique was carried out, imputing the baseline worth to the follow-up variable. Second, we imputed the lacking final result variables utilizing a number of imputation by way of chained equations, with the baseline values of every variable, intercourse, age and schooling degree as enter variables, and generated 20 imputations for every lacking worth.

In further analyses, we stratified members inside every intervention group primarily based on whether or not the particular life-style behaviour was focused with a service within the Health Integrator app or not. For instance, analyses of the intervention impact on bodily exercise had been stratified by if bodily exercise was focused with a service or not. Three members didn’t select any service within the app, however had as an alternative manually written their focused behaviours within the app (bodily exercise n = 3, weight loss program n = 2, stress n = 1, sleep n = 1). This data was used to outline their goal behaviours. Four members solely centered on enchancment of physique weight (n = 1, acquired a scale) or blood strain (n = 3, acquired a blood strain monitor). In all of the stratified analyses, these 4 members had been included within the group that didn’t goal the sure life-style behaviour. At the three-month follow-up, two members didn’t end your complete questionnaire and didn’t reply to the FFQ, the perceived stress scale or the sleep questionnaire. One participant had reported an implausible vitality consumption, i.e. greater than three normal deviations away from the sex-specific imply of the log-transformed vitality consumption. In addition, six members had misinterpreted the sleep query and reported that they fell asleep earlier than they went to mattress. These members had been excluded from analyses of weight loss program, stress and sleep, respectively. Besides these errors, we had no lacking information on merchandise degree. We didn’t carry out stratified analyses on alcohol, since nobody selected the intervention service focusing on alcohol. The stratified analyses had been performed put up hoc and must be interpreted as exploratory.

P-values had been two-tailed and p-values < .05 had been thought-about statistically vital. Statistical analyses had been carried out utilizing Stata 17.0 (Stata Corp).