Intraclass correlation coefficient (ICC) measures the extent of agreement and consistency among
raters for two or more numerical or quantitative variables. This review paper aimed to present several tables that
could illustrate the minimum sample sizes required for estimating the desired effect size of ICC, which is a
measurement of the magnitude of an agreement. Determination of the minimum sample size under such
circumstances is based on the two fundamentally important parameters, namely the actual value of the ICC and
the number of observations made by each subject. The sample size calculations are derived from Power Analysis
and Sample Size (PASS) software where the alpha and minimum required power is fixed at 0.05 and higher than
0.80 respectively. A discussion on how to use these tables for determining sample sizes required for each of the
various scenarios and the limitations associated with their use in each of these scenarios is provided.
BACKGROUND: Self-care plays an important role in diabetes management. One of the instruments used to evaluate self-care in patients with diabetes is the Summary of Diabetes Self-Care Activities (SDSCA) questionnaire. A validated instrument in the Malay language is used to assess self-care practice among children and adolescents with diabetes in Malaysia.
OBJECTIVE: To translate and evaluate the psychometric properties of the revised version of the SDSCA questionnaire in the Malay language.
METHODS:Forward and backward translations were performed. An expert panel reviewed all versions for conceptual and content equivalence. The final version was administered to paediatric patients with diabetes between August 2006 and September 2007. Reliability was analysed using Cronbach's alpha and validity was assessed using exploratory factor analysis.
RESULTS: A total of 117 patients aged 10-18 years were enrolled from nine hospitals. The reliability of overall core items was 0.735 (with item 4) while the reliabilities of the four domains were in the range of 0.539-0.838. As core item number 4 was found to be problematic and it was subtituted by item 5a (from the expanded SDSCA) to suit local dietary education and practice; and the reliabilities of the overall core item (0.782) and the four domains (0.620 - 0.838) improved. Factor loadings of all the items were greater than 0.4, loaded into the original domains, and accounted for 73% of the total variance.
CONCLUSION: The Malay translation of the revised English SDSCA is reliable and valid as a guide for Malaysian children and adolescents suffering from diabetes.
KEYWORDS: Adolescents Diabetes self-care; Children; Malay-translated version of SDSCA
Study site: Pediatric Clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
Objective: A quick assessment tool for screening individuals with depression or anxiety is pertinent in mental-health set up. This study aims to validate the K10 and the K6 to screen patients with non-specific
psychological distress in a Malaysian population.
Methods: Translation of the questionnaire was done from English to Malay. Face validity was conducted on patients, and a pilot study was performed to assess the reliability of the K10 questionnaire. Fieldwork was conducted to determine the reliability and validity of the K10 questionnaire based on convenience sampling of healthy individuals and patients diagnosed with psychiatric illness. Malay version for K10 was administered to healthy participants (group without psychological distress) and patients on psychiatric clinic follow up (psychological distress). Data collection was done between August 2016 and September 2016.
Result: A total of 94 subjects were recruited in the study, of which 32 formed the case group. The Cronbach’s alpha coefficients for K10
were 0.837(control) and 0.885 (case), as for K6 were 0.716 (control) and 0.859 (case). The total score of the
K10 and the K6 clearly differentiated between the control and case groups (p
Many studies reported poorer quality of life (QoL) in youth with diabetes compared to healthy peers. One of the tools used is the Diabetes Quality of Life for Youth (DQoLY) questionnaire in English. A validated instrument in Malay is needed to assess the perception of QoL among youth with diabetes in Malaysia.
Background: Diabetic ketoacidosis (DKA) is a late presentation of newly diagnosed type 1 diabetes mellitus (DM) in children. The aim of this study was to determine the clinical characteristics of type 1 DM at presentation so that appropriate actions can be taken to promote early diagnosis.
Methods: This was a retrospective cohort review from a patient registry database. Data on all patients younger than 20 years old diagnosed with type 1 DM who had been registered with the Malaysian Diabetes in Children and Adolescents Registry (DiCARE) from its inception in 2006 until 2009 were analysed.
Results: The study included 490 children and adolescents, out of which 57.1% were female. The mean (SD) age at diagnosis was 7.5 (3.7) years, which increased from year 2000 to 2009 [6.6 (3.3) years to 9.6 (3.5) years; p = 0.001]. An increasing percentage of DKA at diagnosis was observed from year 2000 (54.5%) to year 2009 (66.7%), which remained high and leveled between 54.5% and 75.0%. DKA was more common in patients with normal weight (p = 0.002) with no significant association with age, gender, ethnicity and status of family history of diabetes mellitus.
Conclusion: An increasing trend of age at diagnosis of patients with type 1 DM was observed. Besides that, proportion of DKA at diagnosis had remained high over the past decade. This study found that normal weight was associated with status of DKA, thus more detailed investigations are required to determine the risk factors for DKA.
BACKGROUND: Women of reproductive age are a group of particular concern as diabetes may affect their pregnancy outcome as well as long-term morbidity and mortality. This study aimed to compare the clinical profiles and glycemic control of reproductive and non-reproductive age women with type 2 diabetes (T2D) in primary care settings, and to determine the associated factors of poor glycemic control in the reproductive age group women.
METHODS: This was a cross-sectional study using cases reported by public primary care clinics to the Adult Diabetes Control and Management registry from 1st January to 31st December 2009. All Malaysian women aged 18 years old and above and diagnosed with T2D for at least 1 year were included in the analysis. The target for glycemic control (HbA1c < 6.5%) is in accordance to the recommended national guidelines. Both univariate and multivariate approaches of logistic regression were applied to determine whether reproductive age women have an association with poor glycemic control.
RESULTS: Data from a total of 30,427 women were analyzed and 21.8% (6,622) were of reproductive age. There were 12.5% of reproductive age women and 18.0% of non-reproductive age women that achieved glycemic control. Reproductive age group women were associated with poorer glycemic control (OR = 1.5, 95% CI = 1.2-1.8). The risk factors associated with poor glycemic control in the reproductive age women were being of Malay and Indian race, longer duration of diabetes, patients on anti-diabetic agents, and those who had not achieved the target total cholesterol and triglycerides.
CONCLUSION: Women with T2D have poor glycemic control, but being of reproductive age was associated with even poorer control. Health care providers need to pay more attention to this group of patients especially for those with risk factors. More aggressive therapeutic strategies to improve their cardiometabolic control and pregnancy outcome are warranted.