Loh Cs
Hospital Kuala Lumpur
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Featured researches published by Loh Cs.
Psychiatry and Clinical Neurosciences | 2001
Kia Fatt Quek; Wah Yun Low; Azad Hassan Razack; Loh Cs
Abstract This present study was undertaken to validate the English version of the General Health Questionnaire (GHQ‐12) in urological patients. Validity and reliability were studied in patients with lower urinary tract symptoms (LUTS) and patients without LUTS. Reliability was evaluated using the test–retest method and internal consistency was assessed using Cronbachs alpha. Sensitivity to change was expressed as the effect size in the pre‐intervention versus post‐intervention score in additional patients with benign prostatic hyperplasia (BPH) who underwent transurethral resection of the prostate (TURP). Internal consistency was excellent. A high degree of internal consistency was observed for each of the 12 items with Cronbachs alpha value of 0.37–0.79, while total scores was 0.79 in the population study. Test–retest correlation coefficient for the 12 items score were highly significant. Intraclass correlation coefficient was high (0.35–0.79). It showed a high degree of sensitivity and specificity to the effects of treatment. A high degree of significant level between baseline and post‐treatment scores were observed across all 12 items in the treatment cohort but not in the control group. The GHQ‐12 is suitable, reliable, valid and sensitive to clinical change in urological disorders.
International Journal of Impotence Research | 2002
Kia Fatt Quek; Wah Yun Low; Azad Hassan Razack; Chua Cb; Loh Cs
The objective of this study was to validate the Malay version of the International Index of Erectile Function (IIEF-15) in patients with lower urinary tract symptoms. Reliability and validity was assessed by using the test–retest while Cronbachs alpha was used to assess internal consistency. Effect size 5was evaluated to assess the sensitivity to change in the pre-transurethral resection of the prostate (TURP) vs post-TURP. Internal consistency was excellent. A high degree of internal consistency was observed for each of the 15 items and five domains (Cronbachs alpha value=0.56 and higher and 0.74 and higher, respectively). Test–retest correlation coefficient for the 15 items and domains scores showed no significant changes. Intraclass correlation coefficient for 15 items and domains were high (ICC=0.59 and above). It can be concluded that the Mal-IIEF-15 is suitable, reliable, valid and sensitive to clinical change in the Malaysian population.
BJUI | 2001
Kia Fatt Quek; Wah Yun Low; A.H. Razack; Loh Cs
Objective To validate the English version of the International Prostate Symptom Score (IPSS) in patients with and without urinary symptoms in a Malaysian population.
BJUI | 2001
Kia Fatt Quek; Wah Yun Low; A.H. Razack; Loh Cs
Objective To assess and evaluate the level of depression, anxiety and psychiatric status in patients with lower urinary tract symptoms (LUTS) before and after treatment by surgery or drugs.
International Journal of Urology | 2004
Kia Fatt Quek; Azad Hassan Razack; Chua Cb; Wah Yun Low; Loh Cs
Background: The present study aimed to evaluate the effects of treating lower urinary tract symptoms (LUTS) on anxiety, depression and psychiatric morbidity following one year of follow‐up.
World Journal of Urology | 2001
Kia Fatt Quek; Loh Cs; Wah Yun Low; Azad Hassan Razack
Objectives: The aim of this study was to determine the effects of surgical treatment of lower urinary tract symptoms (LUTS) in a Malaysian population by evaluating the quality of life before and after treatment. Patients and methods: The study group comprised 111 LUTS patients (age 69.56 ± 7.94 years, mean ± SD ) who were assessed 1 week before and at 3, 6 and 12 months after treatment using the health-related quality of life (HRQOL-20) questionnaire, a visual analogue scale (VAS), the present pain intensity (PPI) scale and the international prostate symptom score (I-PSS). Results: Preoperatively the patients suffered more pain, severe prostatic symptoms, impaired disease-specific quality of life and a reduction in health-related quality of life. Postoperatively the patients showed a significant reduction and improvement in pain, prostatic symptoms, and disease-specific and health-related quality of life. Conclusions: The results showed that the operative procedure significantly improved the overall quality of life of patients with LUTS.
International Journal of Urology | 2005
Kia Fatt Quek; Chua Cb; Azad Hassan Razack; Wah Yun Low; Loh Cs
Abstract Background: The purpose of the present study was to validate the Mandarin version of the International Prostate Symptom Score (Mand‐IPSS) in a Malaysian population.
The Journal of Urology | 2002
Kia Fatt Quek; Wah Yun Low; Azad Hassan Razack; Loh Cs; Chua Cb
PURPOSE We validated the Malay version of the International Prostate Symptom Score in patients with and without urinary symptoms in the Malaysian population. MATERIALS AND METHODS Validity and reliability were studied in patients with and without lower urinary tract symptoms. Reliability was evaluated using the test-retest method and internal consistency was assessed by Cronbachs alpha. Sensitivity to change was expressed as the effect size in the pre-intervention versus post-intervention score in additional patients with lower urinary tract symptoms who underwent transurethral prostate resection. RESULTS Internal consistency was excellent. A high degree of internal consistency was observed for each of the 7 items and for the total score (Cronbachs alpha 0.53 and greater, and 0.68, respectively). The test-retest correlation coefficients of the 7 items were highly significant. The intraclass correlation coefficient was high at 0.51 and greater. There was a high degree of sensitivity and specificity to the effects of treatment. Significant change from baseline to posttreatment scores was observed in all 8 items in the treated but not in the control group. CONCLUSIONS The Malay International Prostate Symptom Score is a suitable, reliable, valid instrument that is sensitive to clinical change in the Malaysian population.
BJUI | 2002
Kia Fatt Quek; C.B. Chua; Wah Yun Low; A.H. Razack; Loh Cs
Objective To validate the Malay version of the Health‐Related Quality of Life (Mal‐HRQOL‐20) questionnaire in patients with and without urinary symptoms in a Malaysian population.
Journal of Sex & Marital Therapy | 2002
Kia Fatt Quek; Wah Yun Low; Azad Hassan Razack; Chua Cb; Loh Cs
The purpose of this study is to validate the English version of the Golombok-Rust Inventory of Marital State (GRIMS) in a Malaysian population. Using the test-retest method and Cronbachs alpha, we assessed reliability and internal consistency. Sensitivity to change was expressed as the effect size. Internal consistency was excellent (Cronbachs alpha value = 0.59 to 0.91) Test-retest correlation coefficient and intraclass correlation coefficient were highly significant in majority items (ICC = 0.62 and above), and there was a high degree of sensitivity and specificity. The GRIMS is suitable, reliable, valid, and sensitive to clinical change in a Malaysian population.