J Med Assoc Thai 2003; 86 (12):1106

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The Aging Males' Symptoms Rating Scale: Cultural and Linguistic Validation into Thai
Leungwattanakij S Mail, Lersithichai P , RatanaOlam K

The interest in clinically investigating the health-related quality of life and symptoms of aging
males has increased in recent years. Recently, a couple of validated questionnaires have been proposed
for either screening, diagnosing and assessing response to therapy. Among these, the Aging Males'
Symptom (AMS) questionnaire has been one of the most accepted questionnaires used in aging male
clinics worldwide. The AMS questionnaire was originally developed and standardized in Germany in
accordance with psychometric tests, and translated into English. The objective of this study was to
develop the Thai AMS questionnaire, which is culturally and linguistically validated, and to present the
translation process from English to Thai.
The translation for the Thai speaking culture was planned specifically for use in Thailand. The
forward translation into Thai was performed independently by two Thai-English translators with clinical
experience in the aging male field. Another two Thai-English translators performed the back translation
into English. Reconciliation of problematic items or explanations with the investigators was performed
point by point to get the final version. The test and retest of Thai AMS questionnaire were performed
within the time interval of 14 days by 20 Thai men aged 41-62 who came from different social classes
and had various levels of education. The correlation between the first and the second questionnaires
was statistically analyzed using Pearson correlation coefficient (r).
The results of the linguistic and cultural adaptation of the English AMS scale led to a Thai
AMS questionnaire. The results of the test and retest reliability demonstrated good correlation and were
promising (r
0.87). Therefore, this scale can be used as a valuable tool for assessing symptoms in the
aging males in Thailand.
Key word
: Aging Males' Symptoms, Thai AMS, AMS questionnaire, ADAM, PADAM

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