Cross-Culture Adaptation and Psychometric Properties of the DrInC Questionnaire in Tanzanian Swahili.

Blandina Theophil Mmbaga,Duan Zhao,Qing He,Catherine A. Staton,Joao Ricardo Nickenig Vissoci

doi:10.3389/fpubh.2018.00330

Abstract

Aims: To develop Swahili versions of the Drinker Inventory of Consequences (DrInC) and evaluate its psychometric properties among a mixed population in Tanzania.Methods: A Swahili version of the DrInC was developed by a panel of bilingual Swahili and English speakers through translation and back-translation. The translated DrInC was administered to a sample of Tanzanian injury patients and a sample of the general population. The validity and reliability of the scale were tested using standard statistical methods.Results: The translated version of the DrInC questionnaire was found to have outstanding domain coherence and language clarity. The tested scale and subscales have adequate reliability (>0.85). Confirmatory factor analysis (CFA) confirmed the five-factor solution by yielding adequate results. DrInC score is statistically significantly correlated with alcohol consumption quantity and the AUDIT score, suggesting that DrInC is able to predict alcohol use as well.Conclusions: This study presents the first validation of the DrInC questionnaire with injury patients and a general population and the first adaptations of the DrInC questionnaire in the Tanzanian and Swahili setting. DrInC instrument was found to have satisfactory psychometric properties, resulting in a new medical and social research tool in this setting.

Highlights

Alcohol is one of the leading causes of death, disease, and disability globally; alcohol is associated with more than 200 types of diseases in the International Classification of Diseases-10 (ICD-10), including injury, gastrointestinal diseases, cancer, cardiovascular diseases, alcohol use disorder (AUD), and fetal alcohol syndrome [1]
This study aims to develop the first translation and adaptation of Drinker Inventory of Consequences (DrInC) in Swahili and analyze its psychometric properties in Tanzania injury patients, including reliability and external validity
All items were found to have language clarity and reliability coefficients above 0.8 for the DrInC full scale and five subscales (Table 4). These results suggest that the translated version of the DrInC questionnaire can be understood in Tanzanian culture

Summary

Introduction

Alcohol is one of the leading causes of death, disease, and disability globally; alcohol is associated with more than 200 types of diseases in the International Classification of Diseases-10 (ICD-10), including injury, gastrointestinal diseases, cancer, cardiovascular diseases, alcohol use disorder (AUD), and fetal alcohol syndrome [1]. Alcohol consumption accounts for 5.1% of the global burden of disease and injury disability-adjusted life years (DALYs) [2]. Within Africa, alcohol accounted for 6.4% of all deaths and 4.7% of all DALYs in 2012 [3]. Given the importance of injury in Tanzania, developing an alcohol consequence assessment tool is vital in both clinical practice and public health research. DrInC has not been cross-culturally validated nor psychometrically evaluated in Tanzanian culture or injury population

Methods

Results

Conclusion