Prediction of Body Height Using Hand Length and Hand Breadth in Pharmacy and Nursing Students at Misrake Ghion College, Northeast Ethiopia: An Anthropometry Study.

Objectives: To predict body height using hand length and hand breadth in pharmacy and nursing students at Misrake Ghion College, Northeast Ethiopia. Methods: A cross-sectional prospective study was conducted from October 15 to January 20, 2021. The study was carried out on 316 students (160 males and 156 females). The study participants were from the Amhara ethnic groups, with the age range of 18 to 25 years. Body height, hand length, and hand breath were measured and analyzed using SPSS version 23. The strength of association was evaluated using correlation analysis. The significance level was set at p < 0.05. A paired sample t test was performed. Regression equations were derived using simple and multiple linear regression analysis. Results: Hand length and hand breadth had a positive significant correlation with body height in both male and females. In both males and females, left hand length had a strong significant correlation (males r = 0.768, females r = 0.670), followed by right hand length (males r = 0.711, females r = 0.626). Regarding hand length, right hand breadth (males r = 0.671, female r = 0.438) and left hand length (males r = 0.504, females r = 0.525). There was a significant bilateral difference in hand length and hand breadth on its right and left sides (p < 0.05). Simple and multiple regression equations were formulated for each sex. Conclusion: In both males and females, body height can be estimated from hand length and breadth using simple or multiple regression equations.

Individual and contextual-level factors associated with iron-folic acid supplement intake during pregnancy in Ethiopia: a multi-level analysis.

BACKGROUND: Anemia is still one of the major public health problems in many developing countries including Ethiopia. Thus, this study aimed to assess individual and contextual-level factors associated with iron-folic acid supplement intake during pregnancy in Ethiopia. METHODS: A secondary analysis was done on the 2019 mini-Ethiopian Demographic and Health Survey (EDHS) dataset. A total of 3,927 pregnant women who gave birth five years before the survey were included in the analysis. Multi-level mixed-effect logistic regression analysis was done by STATA/SE version 14.0 to identify individual and contextual-level factors. Adjusted Odds Ratio (AOR) with 95% Confidence Interval (CI) was used to show the strength and direction of the association. The level of statistical significance was declared at a P value less than 0.05. RESULTS: Those primary educated [AOR = 1.83, 95% CI: (1.24, 2.74)], secondary educated [AOR = 2.75, 95% CI: (1.57, 4.824)], women who had greater than 5 living children [AOR = 2.02, 95% CI: (1.25, 3.27)], women who had ANC visit [AOR = 21.26, 95% CI: (13.56, 33.32)] and women who lived in a cluster with high proportion of women had ANC visit [AOR = 1.72, 95% CI: (1.17, 2.54)] and women who lived in Somali [AOR = 0.44 0.73, 95% CI: (0.22, 0.87)] were significantly associated with iron-folic acid intake during pregnancy. CONCLUSIONS: Both individual and contextual-level factors were significantly associated with iron-folic acid intake during pregnancy. From individual-level factors: education status of women, the total numbers of living children, and ANC follow-up are significant and from contextual-level factors: region and living in a high proportion of women who had ANC follow-up were found to have a statistically significant association. Promoting women's education and maternal health services like ANC and intervention targeting the Somali region would be the recalled area of the government.

Mid upper arm circumference as screening tool of overweight or obesity among adult employees of Mizan Tepi University, Southwest Ethiopia.

Background: Overweight or obesity is an excessive fat accumulation that impairs the health and wellbeing of the adult population throughout the world. Recently Mid upper arm circumference (MUAC) was suggested as a screening index for overweight or obesity among adolescents, but its utilization for the assessment of overweight or obesity in the adult population is not clear yet. In addition, little is known about the screening ability of MUAC for overweight or obesity in the adult population of Ethiopia. Therefore, this study aimed to evaluate the utility of MUAC for screening overweight or obesity among adult employees of Mizan Tepi University, Southwest Ethiopia. Method: A Facility -based cross-sectional study was carried out from February 21 to March 20, 2020, at Mizan Tepi University. About 585 study participants were selected by gender-based stratified sampling technique. Anthropometric data like weight, height, and MUAC were collected. Pearson's correlation between MUAC, body mass index (BMI), and age was calculated to see a relationship between them. The Receiver operating characteristics (ROC) curve was calculated to identify the screening ability of MUAC for overweight or obesity. The appropriate MUAC cutoff point for both men and women established using the Youden index. Additionally, sensitivity, specificity, positive, and negative predictive values were calculated. Result: The prevalence of overweight and obesity among the study participants was 18.1% and 4.8%, respectively. MUAC had a strong positive correlation with BMI, r = 0.65 (95% CI; 0.56-0.69). According to ROC analysis, MUAC is an excellent screening tool for male and female employees with excellent accuracy (AUC = 0.9 with 91.4% sensitivity and 76.4% specificity) and good accuracy (AUC = 0.83 with 67.2% sensitivity and 83.5% specificity), respectively. Based on the youden index, the cutoff point of MUAC to screen overweight or obesity among male and female employees was 26.91cm. Conclusion: Mid-upper arm circumference (MUAC) has an equal ability with BMI to screen overweight or obesity among adults. Therefore, MUAC can be utilized as an alternative index to screen overweight and obesity in resource-limited setups.

Practice of Sunlight Exposure of Infants and Associated Factors Among Infant Coupled Mothers at Dejen District, Amhara Region, Northwest Ethiopia 2021.

Introduction: Currently, nutritional rickets has become a concern of many nutrition experts in many countries. Sunlight is the best and most reliable Source of vitamin D. Since, there is scarce information regarding infant sunlight exposure practice and the determinant factors. Hence, this study aimed to assess mothers' infant sunlight exposure, practice level, and associated factors. Methods: A community-based cross-sectional study was conducted on 884 mothers from March 20 to April 4, 2017. Through the multi-stage simple random sampling method, the study areas had selected. The data were collected using a structured and pre-tested questionnaire and were entered into Epidata version 3.1 and exported to SPSS version 20 for analysis. The strength of association was measured using binary logistic regression at a 95% CI odds ratio. Finally, P < .05% was declared statistically significant. Results: From 884 infant coupled mothers, 866 were recruited in the study with a response rate of 97.9%. Only 44% of mothers had good practice of infant sunlight exposure. In multivariate analyses; Knowledge status (AOR = 1.4, 95% CI: 1.0-1.9), Attitude status (AOR = 1.4, 95% CI: 1.1-1.9), mothers age group (AOR = 8.6, 95% CI: 5.1-14.4), mothers educational status (AOR = 5.2, 95% CI: 1.6-16.9), delivery at health facility (AOR = 1.5, 95% CI: 1.0-2.1), and friend influence (AOR = 1.6, 95% CI: 1.2-2.1) were significantly associated with maternal exposure status of their infants to sunlight. Conclusion: This finding showed that the majority of the mothers did not expose their infants to sunlight appropriately. The mother's knowledge, attitude, educational status, institutional delivery, and friend influence were the significant factors and needs to work on these.

Undernutrition and Associated Risk Factors among Adult HIV/AIDS Patients Attending Antiretroviral Therapy at Public Hospitals of Bench Sheko Zone, Southwest Ethiopia.

Even though there are advancements in the treatment of patients with HIV, many deaths are related to undernutrition. Despite this fact, the burden of undernutrition and associated factors among adults receiving ART is a significant shortcoming in the study area. A cross-sectional study was done in public hospitals of the Bench-Sheko zone. Face-to-face interviews were used to gather information. Odds ratio with a 95% confidence level was used to identify determinants of undernutrition. The proportion of undernutrition, normal, and overweight were 29.2%, 61.2%, and 9.6% respectively. Food insecurity, poor ART adherence, low CD4 count, and substance use were factors associated with under nutrition among HIV patients. Undernutrition was so high in comparison to other studies in Ethiopia; the local concerned bodies should focus on identified risk factors for improving HIV/AIDS treatment via health education, nutritional assistance and counseling.

Time to detection of anaemia and its predictors among women of reproductive-age living with HIV/AIDS initiating ART at public hospitals, Southwest Ethiopia: a multicentre retrospective follow-up study.

OBJECTIVE: To assess the time to development of anaemia and its predictors among women of reproductive-age receiving antiretroviral therapy (ART) in public hospitals, Southwest Ethiopia. DESIGN: Hospital-based retrospective follow-up study SETTING: Mizan-Tepi University Teaching Hospital, and Gebretsadik Shawo General Hospital Southwest Ethiopia. PARTICIPANTS: A total of 389 records of women living with HIV/AIDS at public hospitals were reviewed using a systematic sampling method. The data were entered using Epi-Data Manager V.4.2 and exported to STATA V.14 for data analysis. A Cox-regression model was used and variables with a p-value of <0.05% and 95% confidence level in multivariable analysis were declared as statistically significant predictors for anaemia. PRIMARY OUTCOME: Time to development of anaemia and its predictors among women of reproductive-age on ART in public hospitals. RESULTS: Of 370 records of women of reproductive-age, 203 (54.86%, 95% CI (49.77% to 59.96%)) were anaemic with an incidence rate of 12.07 per 100 person months of observation, and the overall median survival time of 60 months. The total of 2.97%, and 80.26% of women were developed anaemia within the first 6 months and the last 6 months period of follow-up, respectively. Moreover, non-employed women, women with advanced WHO stage, women with baseline opportunistic infections and women who were on ART for long-duration were significantly associated with anaemia among women living with HIV/AIDS. CONCLUSION: In this study, the incidence rate of anaemia was significantly high. The development of anaemia among women on ART was also increased with increased follow-up time. The risk of anaemia is increased in women living with HIV/AIDS due to advanced baseline WHO staging, presence of OIs at baseline, an increased duration on ART and low occupational status. Therefore, early identification and treatment of opportunistic infections and other coinfections are required to decrease the incidence of anaemia among women living with HIV/AIDS.

Factors associated with childhood underweight among orphaned preschool children: A community-based analytical cross-sectional study in Southern Ethiopia.

BACKGROUND: Childhood underweight is one of the major public health problems in Ethiopia. In Ethiopia, most of the available evidence is related to the general community children, which had different risk and severity levels than orphan children. Even though under-five orphan children have a higher risk of being underweight, they are the most neglected population. OBJECTIVE: The study aims to determine the prevalence and factors associated with childhood underweight among orphaned preschool children in Southern Ethiopia. METHODS: A community-based analytical cross-sectional study was conducted among 367 orphans. The burden of childhood underweight was assessed using World Health Organization standard cutoff points below -2 SD using z-scores. All variables with a p-value of < 0.25 during binary logistic regression analysis were entered into a multivariate logistic regression analysis to identify predictor variables independently associated with underweight at a p-value of 0.05 with 95% CI. RESULTS: In this study, the prevalence of underweight among orphan children was 27.4%. The main factors associated with underweight were female child (adjusted odds ratio (aOR) = 5.29, 95% confidence interval (CI) (2.83-9.92)), adult food as type of first complementary food (aOR = 2.47; 95% CI (1.24-4.94)), food insecurity (aOR = 1.98; 95% CI (1.23-3.21)), and child age from 24-59 months (aOR = 7.19; 95% CI (3.81-13.60)). CONCLUSION: Childhood underweight is a public health problem in the study area. The sex of a child, type of first complementary food, household food security status, and child age were the major predictors of underweight. Therefore, appropriate dietary interventions, nutrition education, and increased food security status of orphan children are highly recommended.

Undernutrition and associated factors in orphan children aged 6-59 months in Gambella Southwest, Ethiopia: A community-based cross-sectional study.

OBJECTIVE: The study aimed to assess the prevalence of stunting, wasting, underweight and associated factors in orphaned children under 5 years old. DESIGN: A cross-sectional study. SETTING: Gambella City, Ethiopia. PARTICIPANTS: A sample of 419 under 5 orphaned children included in the study. Eligible households with orphans had selected using a systematic random sampling method. The lottery method was used when more than one eligible study participants live in the household. An OR with 95% CI was performed to measure the strength of association between each dependent variable and independent variables. Variables with p<0.05 were declared statistically significant. PRIMARY OUTCOME: The main outcome of this study was the prevalence of undernutrition among orphaned under 5 and its associated factors. RESULTS: Prevalence of stunting, wasting and underweight in orphan children under 5 were 12.2%, 37.8% and 21.7%, respectively. The prevalnce of wasting peaks among age group of 36-47 months (42.5%), whereas underweight peaks in 48-59 months (27.7%). Food insecurity, wealth index, family size, vitamin A supplementation, diarrhoea, fever 2 weeks before the survey, children under 5 and parents' death were associated with undernutrition. CONCLUSION: The prevalence of stunting, wasting and underweight among orphan children under 5 was significantly high. Multisectoral collaborative efforts towards access to health services, improving income-generating activities, micronutrient supplementation and social support and protection targeting orphan and vulnerable populations have to be built up.

The Psychological Impacts During the Initial Phase of the COVID-19 Outbreak, and its Associated Factors Among Pastoral Community in West Omo Zone, South-West Ethiopia, 2020: A Community-Based Study.

BACKGROUND: COVID-19 is a global pandemic and a major health crisis affecting several nations. Such outbreaks are associated with adverse mental health consequences to any group of the population. Despite its negative effects, no study has addressed the potential psychological impacts of the COVID-19 outbreak among the pastoral community. This study aims to assess psychological experiences during the early stages of the COVID-19 outbreak and the factors that contributed to it among pastoral community residents in West Omo, South-West Ethiopia. METHODS: A community-based cross-sectional study was carried out from May to June 2020. The study subjects were selected through a multistage sampling technique. Data were collected through face-to-face interviews, and entered into EpiData 3.1, then exported to SPSS version 24 for statistical analysis. The psychological impact was assessed by the Depression, Anxiety and Stress Scale (DASS-21). P-value < 0.20 during bi-variable analysis was considered as a candidate for multivariable logistic regression. Independent factors of depression, anxiety, and stress were assessed using adjusted odds ratio with 95% confidence level s at P-value < 0.05 cut-off point. RESULTS: A total of 845 eligible pastoral residents were interviewed, with a 94.4% response rate. The prevalence of a positive response for anxiety, depression and stress was 30.8%, 26.3% and 24.4%, respectively. Being female was highly associated with developing anxiety and depression. Anxiety was found to be three times more prevalent among the respondents with ≥ 3 family members. Furthermore, participants with a history of mental illness, poor social support, and a high perceived life threat were also at a higher risk of experiencing anxiety, depression, and stress. CONCLUSION: The prevalence of positive depression, anxiety and stress results were high. As a result, special attention should be paid, by governmental and non-governmental health organizations, to psychosocial and mental health programs for pastoral residentsduring the COVID-19 pandemic.

Minimum acceptable diet and associated factors among infants and young children aged 6-23 months in Amhara region, Central Ethiopia: community-based cross-sectional study.

OBJECTIVE: The main objective of this study was to assess the prevalence of a minimum acceptable diet (MAD) and associated factors. DESIGN: Community-based cross-sectional study SETTING: Debre Berhan Town, Ethiopia. PARTICIPANTS: An aggregate of 531 infants and young children mother/caregiver pairs participated in this study. A one-stage cluster sampling method was used to select study participants and clusters were selected using a lottery method. Descriptive statistics were calculated for all study variables. Statistical analysis was performed on data to determine which variables are associated with MAD and the results of the adjusted OR with 95% CI. P value of <0.05 considered statistically significant. PRIMARY OUTCOME: Prevalence of MAD and associated factors RESULTS: The overall prevalence of MAD was 31.6% (95% CI: 27.7 to 35.2). Having mother attending secondary (adjusted OR, AOR=4.9, 95% CI: 1.3 to 18.9) and college education (AOR=6.4, 95% CI: 1.5 to 26.6), paternal primary education (AOR=1.3, 95% CI: 1.5 to 2.4), grouped in the aged group of 12-17 months (AOR=1.8, 95% CI: (1.0 to 3.4) and 18-23 months (AOR=2.2, 95% CI: 1.2 to 3.9), having four antenatal care (ANC) visits (AOR=2.0, 95% CI: 1.0 to 3.9), utilising growth monitoring (AOR=1.8, 95% CI: 1.1 to 2.9), no history of illness 2 weeks before the survey (AOR=2.9, 95% CI: 1.5 to 6.0) and living in the household with home garden (AOR=2.5, 95% CI: 1.5 to 4.3) were positively associated with increase the odds of MAD. CONCLUSION: Generally, the result of this study showed that the prevalence of minimum acceptable was very low. Parent educational status, ANC visits, infant and young child feeding advice, child growth monitoring practice, age of a child, a child has no history of illness 2 weeks before the survey, and home gardening practice were the predictors of MAD. Therefore, comprehensive intervention strategies suitable to the local context are required to improve the provision of MAD.

Minimum Dietary Diversity and Associated Factors among Lactating Mothers in Ataye District, North Shoa Zone, Central Ethiopia: A Community-Based Cross-Sectional Study.

BACKGROUND: Low dietary diversity superimposed with poor-quality monotonous diets is a major problem that often results in undernutrition, mainly micronutrient deficiencies. However, there is limited evidence on minimum dietary diversity and associated factors among lactating mothers in resource-poor settings, including the study area. Therefore, the objective of the study is to assess the prevalence of minimum dietary diversity and associated factors among lactating mothers in Ataye District, Ethiopia. METHODS: A community-based cross-sectional study design was used among 652 lactating mothers aged 15-49 years from January 25 to April 30, 2018. Dietary diversity was measured by the minimum dietary diversity indicator for women (MDD-W) using the 24-hour dietary recall method. Data were entered into EpiData version 4.2.0.0 and exported to the statistical package for social science (SPSS) version 24 for analysis using the logistic regression model. RESULTS: The prevalence of minimum dietary diversity among lactating mothers was 48.8% (95% CI: (44.7%, 52.9%). Having formal education ((AOR = 2.16, 95% CL: (1.14, 4.09)), a final say on household purchases ((AOR = 5.39, 95% CI: (2.34, 12.42)), home gardening practices ((AOR = 2.67, 95% CI: (1.49, 4.81)), a history of illness ((AOR = 0.47, 95% CI: (0.26, 0.85)), good knowledge of nutrition ((AOR = 5.11, 95% CI: (2.68, 9.78)), being from food-secure households ((AOR = 2.96, 95% CI: (1.45, 6.07)), and medium ((AOR = 5.94, 95% CI: (2.82, 12.87)) and rich wealth indices ((AOR = 3.55, 95% CI: (1.76, 7.13)) were significantly associated with minimum dietary diversity. CONCLUSION: The prevalence of minimum dietary diversity among lactating mothers was low in the study area. It was significantly associated with mothers having a formal education, final say on the household purchase, home garden, good knowledge of nutrition, history of illness, food-secure households, and belonging to medium and rich household wealth indices. Therefore, efforts should be made to improve the mother's decision-making autonomy, nutrition knowledge, household food security, and wealth status.

Food insecurity and its predictors among lactating mothers in North Shoa Zone, Central Ethiopia: a community based cross-sectional study.

OBJECTIVE: To assess the prevalence of food insecurity (FI) and its predictors among lactating mothers in Ataye District, North Shoa Zone, Central Ethiopia. DESIGN: A community-based cross-sectional study design was used. SETTING: Two urban and four rural randomly selected kebeles of the Ataye District in Ethiopia. PARTICIPANTS: Out of 635 participants, 612 lactating mothers aged 15-49 years participated from February to April 2018. Mothers who lived for at least 6 months and above in the district were included, and mothers who were not able to respond to an interview were excluded. A single lactating mother per household was included. Lactating mothers in the households were selected using a cluster sampling technique. The number of lactating mothers found in each kebele was taken from family folder documentation. PRIMARY OUTCOME: The prevalence and predictors of food insecurity. RESULTS: The prevalence of FI among lactating mothers was 36.8%. No formal education (adjusted OR (AOR) =1.82, 95% CI 1.13 to 2.92), no income-generating activities (AOR=3.39, 95% CI 2.05 to 5.64), no home gardening practice (AOR=5.65, 95% CI 3.51 to 9.08), alcohol use by husbands (AOR=2.02, 95% CI 1.25 to 3.24), low minimum dietary diversity score (AOR=2.94, 95% CI 1.88 to 4.57), less than three frequencies of meals (AOR=3.97, 95% CI 1.65 to 9.54) and three meals only per day (AOR=1.86, 95% CI 1.08 to 3.17) were significant predictors of FI of mothers. CONCLUSION: The prevalence of FI was high in the study area. No formal education, no income-generating activities, no home gardening practice, alcohol use by husbands, low minimum dietary diversity score, fewer than three frequencies of meals and three meals only per day were independent predictors of FI. Therefore, increasing home gardening, decreasing alcohol intake, increasing dietary diversity and performing income-generating activities are highly recommended to reduce FI.

Prevalence of Anemia and Associated Factors among Infants and Young Children Aged 6-23 Months in Debre Berhan Town, North Shewa, Ethiopia.

BACKGROUND: Anemia is a problem of both the developed and developing world, which occurs in all age groups of the population. Half of the anemia cases are due to iron deficiency and affects physical growth and mental development. Nevertheless, there is a scarcity of information about anemia and associated factors among infants and young children aged 6 to 23 months in low-income countries like Ethiopia. OBJECTIVE: The aim of this study was to assess the prevalence of anemia and associated factors among infants and young children aged 6-23 months. METHODS: A community-based cross-sectional study design was used among 531 mothers/caregivers-children pairs in Debre Berhan Town, North Shewa, Ethiopia, from February 1 to March 2, 2018. The cluster sampling technique was used to select the study participants. Sociodemographic data were collected from mothers/caregivers using pretested structured questionnaires. Hemoglobin levels were measured using a HemoCue analyzer machine (HemoCue® Hb 301, Ängelholm, Sweden). All relevant data were described using descriptive statistics such as frequencies, proportions, mean, and standard deviation. Odds ratio and 95% CI were estimated using binary logistic regression to measure the strength of the association between anemia and explanatory variables. The level of statistical significance was declared at P < 0.05. RESULTS: The overall prevalence of anemia was 47.5% (95% CI: 43.1-51.4%) of which 18.3% were mildly anemic, 25% were moderately anemic, and 4.1% were severely anemic. In multivariable logistic regression analysis, household food insecurity (AOR = 2.7, 95% CI: 1.6-4.5), unmet minimum dietary diversity (AOR = 2.5, 95% CI: 1.4-4.3), stunting (AOR = 2.3, 95% CI: 1.2-4.3), and underweight (AOR = 2.7, 95% CI: 1.4-5.4) positively associated with anemia while having ≥4 antenatal care visits (AOR = 0.5, 95% CI: 0.3-0.9) and met minimum meal frequency (AOR = 0.25, 95% CI: 0.14-0.45) had a protective effect against anemia. CONCLUSION: Generally, the study showed that anemia was a severe public health problem among infants and young children in the study setting. Antenatal care visit, meal frequency, dietary diversity, underweight, stunting, and food insecurity significantly associated with anemia. Therefore, efforts should be made to strengthen infant and young child feeding practices and antenatal care utilization and ensure household food security, thereby improving the nutritional status of children.

Association of Asthma Control and Metered-Dose Inhaler Use Technique among Adult Asthmatic Patients Attending Outpatient Clinic, in Resource-Limited Country: A Prospective Study.

Asthma is a heterogeneous disease which is characterized by chronic airway inflammation. It is a common chronic respiratory disease affecting 1-18% of population in different countries. It can be treated mainly with inhaled medications in several forms, including pressurized metered-dose inhaler (MDI). Patients encountered difficulty in using inhaler devices even after repeated demonstration and/re-evaluation. This could highly compromise patient treatment outcome/asthma control. To evaluate relationship between MDI use technique and asthma control among adult asthmatic patients who attend respiratory clinic in Jimma University Medical Center (JUMC), Southwest Ethiopia. A prospective observational study was conducted from March to August 22, 2018. All adult asthmatic patients who met the inclusion criteria were included in the study. Patient baseline assessment was conducted (patient demography, inhalation technique, adherence, and asthma control status). Inhalation technique was obtained using a standard checklist of steps recommended in National Institute of Health (NIH) guidelines. Patient adherence using asthma inhalation test and asthma control status was assessed by 2017 GINA guideline. Independent predictors of outcome were identified, strength of association between dependent and independent variables was determined by using ordinal logistic regression analysis, and statistical significance was considered at P < 0.05. One hundred forty patients were included in the analysis. Among these, 26 (18.4%) patients were controlled, 65 (46.1%) partially controlled, and 35% uncontrolled. Proportion of patients with uncontrolled asthma were higher among inefficient as compared to efficient, whereas patients with controlled asthma were higher among efficient as compared to inefficient. Asthma control status is significantly associated with inhalation technique (P=0.006). Since most of the patients were inefficient and it is significantly associated with asthma control status, the hospital tried to adopt video MDI teaching program, and the patient should ask healthcare professionals how to take medication and they should bring their device to receive demonstration during visit. Health professionals should re-evaluate the patient during their hospital visit and encourage bringing their device to give demonstration.