Antipsychotic Medication Adherence Scale (AMAS): Development and preliminary psychometric properties

2016 ◽  
Vol 33 (S1) ◽  
pp. s258-s259
Author(s):  
M.J. Martins ◽  
A.T. Pereira ◽  
C.B. Carvalho ◽  
P. Castilho ◽  
A.C. Lopes ◽  
...  
Keyword(s):  
Medication Adherence ◽  
Psychometric Properties ◽  
Antipsychotic Medication ◽  
Convergent Validity ◽  
Rating Scale ◽  
Statistical Analysis Plan ◽  
Different Types ◽  
Adherence Scale ◽  
Relevant Variables ◽  
Competing Interest

IntroductionAlthough being highly consensual that antipsychotic adherence is an important outcome predictor in psychosis, existing reviews have found mean rates of adherence around 40–60%. Several aspects, such as patient-related, medication-related, environmental-related variables have been described as important predictors.AimsThis study aim is to develop, administer and present preliminary psychometric properties of a new scale for antipsychotic medication adherence that includes different types of predictors (clinical, psychosocial, and practical among others).MethodsThe “AMAS” was developed by a multidisciplinary team and was based on recent research on factors influencing antipsychotic adherence. The scale evolved from multiple drafts and experts were contacted in order to improve the final version. Over 50 patients with a diagnosis of a psychotic-spectrum disorder taking antipsychotic medication will be assessed with the “AMAS” and the Medication Adherence Rating Scale. Additionally, each patient's psychiatrist will fill in a form with demographic and clinical variables (such as type of symptoms, previous adherence problems, current adherence, insight and other relevant variables).ResultsThis is an ongoing study and the sample is still being collected (scheduled finish date: February/2016). Our statistical analysis’ plan includes: reliability analysis (Chronbach's alpha, alpha if item deleted, inter item correlations and covariances and item-total correlations); validity (convergent validity); factorial analysis.ConclusionsIt is hypothesized that the “AMAS” will be a practical, reliable and valid unidimentional instrument with clinical utility assessing adherence to antipsychotics. The “AMAS” can be also useful in assessing intervention targets (e.g. psychoterapeutical, psychoeducational) to enhance adherence.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Psychometric Properties of the Arabic Version of Medication Adherence Self-Efficacy Scale-Revised in Hypertension

2021 ◽  
pp. JNM-D-20-00055
Author(s):  
Huda Salim Al-Noumani ◽  
Omar Shawkat Al Omari
Keyword(s):  
Medication Adherence ◽  
Psychometric Properties ◽  
Self Efficacy ◽  
Convergent Validity ◽  
Model Fit ◽  
Clinical Settings ◽  
Arabic Version ◽  
Improve Medication Adherence ◽  
Modified Model ◽  
Adherence Scale

Background and PurposeCultural adaptation of Medication Adherence Self-Efficacy Scale-Revised is lacking in the Arabs population. This study tested the psychometric properties of the Arabic version of the Medication Adherence Self-Efficacy Scale-Revised.MethodsThe study included 199 Omani hypertensive patients. The scale was translated into Arabic. Reliability and construct and convergent validity were examined.ResultsScale's reliability was α = .93. One factor was identified and explained about 57.5% of the variance. A new modified model with covariance suggested a better model fit. A significant relationship between the scale and Morisky medication adherence scale was found (r = .53, p < .001).ConclusionsThe Arabic version scale is reliable, valid, and could be applied in the clinical settings to improve medication adherence.

scholarly journals The 8-item Morisky medication adherence scale: validation of a Portuguese version in HIV patients

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
A Aguiar ◽  
C Piñeiro ◽  
R Serrão ◽  
R Duarte
Keyword(s):  
Medication Adherence ◽  
Psychometric Properties ◽  
Reliability Analysis ◽  
Cronbach’S Alpha ◽  
Portuguese Version ◽  
Cronbach's Alpha ◽  
Adherence To Medication ◽  
Morisky Medication Adherence Scale ◽  
Adherence Scale ◽  
The Mean

Abstract Background Antiretroviral therapy (ART) has the most effective treatment for people with HIV, but its effectiveness depends on the individual medication adherence. Morisky Medication Adherence Scale (MMAS-8) is one of the most widely used scales to assess patient adherence. Thus, we aimed to validate a Portuguese version of MMAS-8 and determine its psychometric properties in HIV positive patients. Methods A cross-sectional survey was conducted in Centro Hospitalar Universitário São João (Porto, northern Portugal) at the infectious diseases department. After authorization to use the scale - granted by the author - and, a standard forward-backwards procedure to translate MMAS-8 to Portuguese, the questionnaire was applied to 233 patients with HIV doing ART. Reliability was assessed using Cronbach's alpha and test-retest reliability. Three levels of adherence were considered: 0 to &lt; 6 (low), 6 to &lt; 8 (medium), 8 (high). Results In the studied sample, the mean age was 45.03 years (SD = 11.63), 80.3% men, 19.3% women and 1 transgender, and 53.8% had ≤9 years of education. The mean number of prescribed ART per patient was 1.76. The mean score for the medication adherence scale was 7.29 (SD = 6.74). For the reliability analysis, 12 patients were excluded due to missing data (n = 221). Regarding the level of adherence, 22.5% were low adhering, 71.6% medium and 5.9% high. Corrected item-total correlations showed that 1 item does not correlate very well with the overall scale and was dropped. Scale reliability analysis for the remaining 7 items revealed an overall Cronbach's alpha of 0.661. Women had a protective effect on adherence (OR = 0.31;95%CI:0.15-0.66). Number of years doing ART, age of participants, and type of residence didn't show to be correlated with adherence. Conclusions MMAS-8 is a reliable and valid measure to detect patients at risk of non-adherence. A satisfactory Cronbach's alfa (0.661) was obtained. In general, adherence to medication was medium or high. Key messages This scale can be applied nationwide in other different hospitals, as it could serve as a tool for measuring adherence to ART that can allow for better health care to the ones that are low adhering. A Portuguese version of the MMAS-8 was created for measuring adherence to ART that maintained a similar structure to the original MMAS-8 and good psychometric properties.

scholarly journals T217. MEDICATION ADHERENCE AND ITS CORRELATES AMONG PATIENTS WITH RECURRENT SCHIZOPHRENIA: A LARGE-SCALE STUDY IN CHINA

2020 ◽  
Vol 46 (Supplement_1) ◽  
pp. S315-S315
Author(s):  
Brendan Ross ◽  
Dongfang Wang ◽  
Chang Xi ◽  
Yunzhi Pan ◽  
Li Zhou ◽  
...  
Keyword(s):  
Hong Kong ◽  
Medication Adherence ◽  
Antipsychotic Medication ◽  
Clinical Characteristics ◽  
Rating Scale ◽  
Severity Of Illness ◽  
Older Age ◽  
Good Adherence ◽  
Acute Period ◽  
Adherence To Medication

Abstract Background The Medication Adherence Rating Scale (MARS) is a rapid, non-intrusive way of measuring adherence to medication in order to improve management of patients with schizophrenia. The current study evaluated the reliability of the Chinese (Mandarin) version of the MARS and explored clinical and demographic correlates to medication adherence in a large sample of patients with recurrent schizophrenia in China. Methods 1198 patients with recurrent schizophrenia were recruited from 37 different hospitals in 17 provinces/municipalities of China and evaluated with the Medication Adherence Rating Scale (MARS), Clinical Global Impression-Severity of illness (CGI-S) and Sheehan Disability Scale-Chinese version (SDS-C). Socio-demographic data included gender, age, marital status, education level, employment status and living with others or alone. Clinical data included duration of illness, number of relapses, and medication use, as well as current stage of disease evaluated by SCID. Pearson correlations were used to examine associations between MARS, socio-demographic, and clinical characteristics. Independent sample T-tests were used to compare MARS score between different socio-demographic and clinical characteristics. Finally, a cut-off score of 6 on the MARS (ranged from 1 to 10) was used to divide the sample into two groups (i.e. MARS score≥ 6 identified good adherence and MARS score&lt; 6 indicated poor adherence). Bivariate logistic regression models with the two groups (MARS score&lt;6 and MARS score≥6) as the dependent variable was used to identify influencing factors of medication adherence. Data processing and analyses were conducted on SPSS 22.0 and Mplus 7.4. Results The MARS showed good internal consistency and psychometric properties. MARS outcomes varied by demographic and clinical characteristics; only 28.5% recurrent schizophrenia patients met the criteria of good adherence to antipsychotic medication. Findings indicated older age (OR=1.04, 95%CI=1.02–1.06), unsteady income (OR=1.79, 95%CI=1.29–2.49), acute period (OR=4.23, 95%CI=3.21–5.59) and a higher CGI-S score (OR=1.44, 95%CI=1.03–2.01) had significantly predictive effects on poor medication adherence. MARS demonstrated good reliability in our sample (Cronbach’s α =0.83; Spearman-Brown = 0.72). Discussion This study of the MARS is unique for a few reasons. First, comparative reports on MARS use in mainland China have not been published internationally; similar tests on reliability and correlation have only been reported in Hong Kong and Taiwan (Hui et al., 2006; Kao and Liu, 2010). Second, in considering demographic and clinical correlates of medication adherence in patients with recurrent schizophrenia, our MARS study broadly represents China with 17 of 27 provinces/municipalities reporting data from multiple geographic regions, with the participation of hundreds of psychiatrists across China. Only 28.5% recurrent schizophrenia patients met the criteria of good adherence to antipsychotic medication in this study. Low levels of good medication adherence in schizophrenia patients are found across Asia, with 27% in Korea meeting the criteria of good adherence (Kim et al., 2006) and 26% in Hong Kong (Hui et al., 2006). Overall MARS total score in our study (3.68 ±2.90) is comparably lower to that of developed countries, as MARS total score had a mean of 6.0 to 7.7 in a UK sample (Fialko et al., 2008; Jaeger et al., 2012), and 5.5 for schizophrenia patients in France (Zemmour et al., 2016). Medication adherence of patients affected by recurrent schizophrenia in China was found to be relatively low. Risk factors for non-adherence to medication in recurrent schizophrenia patients include older age, unsteady income, acute period and severity of illness.

scholarly journals A Simple Single-Item Rating Scale to Measure Medication Adherence: Further Evidence for Convergent Validity

2009 ◽  
Vol 8 (6) ◽  
pp. 367-374 ◽  
Author(s):  
Seth C. Kalichman ◽  
Christina M. Amaral ◽  
Connie Swetzes ◽  
Michelle Jones ◽  
Rene Macy ◽  
...  
Keyword(s):  
Medication Adherence ◽  
Convergent Validity ◽  
Rating Scale ◽  
Single Item

Factor–structure of the Italian version of the Scale Of Prodromal Symptoms (SOPS): a comparison with the English version

2011 ◽  
Vol 20 (1) ◽  
pp. 45-54 ◽  
Author(s):  
A. Comparelli ◽  
V. Savoja ◽  
G. D. Kotzalidis ◽  
S. W. Woods ◽  
S. Mosticoni ◽  
...  
Keyword(s):  
Psychometric Properties ◽  
Factor Structure ◽  
Convergent Validity ◽  
Rating Scale ◽  
Structured Interview ◽  
Italian Version ◽  
Prodromal Symptoms ◽  
Early Intervention Services ◽  
Psychiatric Rating ◽  
Psychiatric Rating Scale

Aims.The 19-item ‘Scale Of Prodromal Symptoms’ (SOPS) and its semi-structured interview, the Structured Interview for Prodromal Symptoms (SIPS), have been developed to assess prodromes of psychosis. We assessed psychometric properties of the Italian version of the instrument.Methods.We collected socio-demographic and clinical data of 128 people seeking first-time psychiatric help in a large Roman area, either as outpatients at community facilities or as inpatients in psychiatric wards of two general hospitals. Participants were administered the Italian version of the SOPS and the 24-item Brief Psychiatric Rating Scale (BPRS). Data were analysed through Pearson's correlation and factorial analysis.Results.The English and Italian SOPS versions showed similar psychometric properties and factorial structure. The best-fit model was trifactorial, explaining 90% of total variance, and roughly corresponding to the positive, negative, and general dimensions, with disorganisation spreading over the other dimensions. Compared with the BPRS, the Italian version of the SOPS showed construct validity and convergent validity.Conclusions.The factor–structure of the Italian version of the SOPS is similar to those of the English and Spanish versions, in that the factors emerged are the same (positive, negative, and general symptoms). The scale could be used to assess at-risk people in early intervention services.

The H&F-Multidimensional Perfectionism Scale 13 (H&F-MSP13): Construct and convergent validity

2016 ◽  
Vol 33 (S1) ◽  
pp. s287-s287
Author(s):  
M.J. Soares ◽  
A.T. Pereira ◽  
A. Araújo ◽  
D. Silva ◽  
J. Valente ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Psychometric Properties ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Principal Component ◽  
Varimax Rotation ◽  
Valid Instrument ◽  
Good Internal Consistency ◽  
Explained Variance ◽  
Competing Interest

IntroductionThe Hewitt and Flett Multidimensional Perfectionism Scale (H&F-MPS) is one of the most used measures of perfectionism. Their 45-items evaluate self-Oriented (SOP), Self-Prescribed (SPP), and Other Oriented (OOP) perfectionism.ObjectivesTo study the internal consistency and convergent validity of the H&F-MSP13.MethodsOne hundred and ninety-two university students (78.1% females), aged 19.74 years (sd = 2.10; range: 17–28) completed the Portuguese versions of H&F-MPS (Soares et al., 2003) and of Frost et al. MPS (F-MPS) (Amaral et al., 2013). Thirteen items were selected from the Portuguese version of the H&F-MPS, based on their loading in the factor (0.60 and over) (Soares et al., 2003).ResultsThe H&FMPS13 revealed good internal consistency (α = 0.816). The corrected item-total subscale Spearman's correlations were high (from 0.418 to 0.820). The principal component analysis with factors varimax rotation produced three factors, which revealed acceptable/good internal consistency (SOP: explained variance/EV = 35.4%, α = .900; SPP: EV = 16.3%, α = 0.695; OOP: EV = 10.8%, α = 0.709). The correlations between the H&F-MSP13 scores and the matching scores of the H&F-MPS were high (from r = 0.745 to r = 0.945, all P < .01), suggesting that both scales measure similarly the constructs. The H&F-MSP13 and the H&F-MPS total scores demonstrate good convergent validity with the total score of F-MPS, as indicated by the correlations (r = 0.581/r = 0.636, respectively). The correlations similarities between the H&F-MSP13 and H&F-MSP dimensions and the F-MPS dimensions and total scores were also considerable.ConclusionsThe H&F-MSP13 is a valid instrument to measure perfectionism that reveals convergent validity with the F-MPS, retaining the adequate psychometric properties of the H&F-MPS and its administration is less time consuming.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Use of a Self-Report Medication Adherence Scale for Measuring Adherence to Antiretroviral Therapy in Patients With HIV/AIDS

2018 ◽  
Vol 26 (2) ◽  
pp. E72-E88 ◽  
Author(s):  
Karen E. Wickersham ◽  
Susan M. Sereika ◽  
Hyung-Joo Kang ◽  
Lisa K. Tamres ◽  
Judith A. Erlen
Keyword(s):  
Medication Adherence ◽  
Antiretroviral Therapy ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Internal Consistency Reliability ◽  
Self Report ◽  
Regimen Complexity ◽  
Adherence Scale ◽  
Test Retest Reliability ◽  
Hiv Aids

Background and Purpose:This study examined the psychometric properties of a 9-item Morisky Medication Adherence Scale (MMAS-9) adapted specifically for patients with HIV/AIDS.Methods:We used data from two randomized controlled trials investigating telephone-delivered interventions for improving adherence to antiretroviral therapy to assess reliability (Cronbach’s α and Pearson’s product correlation) and validity (convergent and concurrent) of the MMAS-9.Results:The internal consistency (Cronbach’s α) of the MMAS-9 was .66 (study 1) and .69 (study 2); 3-month test–retest reliability (Pearson’s correlation) ranged from .50 to .74. Validity was supported by associations with electronic event monitored adherence, social support, depressive symptoms, self-efficacy, stigma, regimen complexity, and impact of side effects in the hypothesized direction.Conclusions:The adapted MMAS-9 demonstrated good convergent validity but somewhat lower internal consistency reliability than other reports.

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