Cold therapy for pain relief during and after amniocentesis procedure: A randomized controlled trial.

AIM: To compare effects of cold therapy on patient pain score during and after amniocentesis procedure. METHODS: We performed a prospective randomized-controlled study comparing the anticipated pain, perceived pain during the procedure, and pain after 15 and 30 min of amniocentesis between pregnant women receiving cold therapy before (group 1), after (group 2), and both before and after amniocentesis (group 3) with a control group (group 4). Pain was measured using a visual analog scale (VAS) score. RESULTS: A total of 480 participants were recruited and randomly assigned into four groups of 120 each. Anticipated pain scores in all groups were not statistically different. When compared with group 4, groups 1 and 3 experienced significant pain reduction during amniocentesis, while VAS scores at 15 and 30 min after amniocentesis in groups 1-3 were significantly lower as compared to group 4. CONCLUSION: Cold therapy both before and after amniocentesis procedure is most effective in pain reduction. It encourages the pregnant woman's cooperation during the procedure and provides a good amniocentesis experience. Application of cold compression is also beneficial in other aspects as it is simple, safe, convenient, and yet reusable and economically efficient for routine use in all pregnant women undergoing amniocentesis.

Clinical course, prognostic factors, and long-term outcomes of malignant middle cerebral artery infarction patients in the modern era.

BACKGROUND: Recanalization therapies have been increasingly applied in clinical practice, which might change the outcomes of patients with large middle cerebral artery (MCA) infarction. The purpose of this study was to study the clinical course, prognostic factors, and long-term outcomes of patients with an acute large MCA infarction. METHODS: Patients with an acute large MCA infarction who were treated between January, 2011 - March, 2014 were studied. The demographics and vascular risk factors were compared between patients with and without clinical outcomes of interest, favorable outcome and death. RESULTS: From a total of 1538 patients, 200 patients with large MCA infarction were included. The mean age was 67 years. The mean National Institute of Health Stroke Scale score was 20. The mean time from onset to the hospital was 289 min. Intravenous recombinant-tissue-plasminogen activator (rtPA) was given in 50 patients (25%). The mean follow-up time was 13 months. 51 patients (51/191, 27%) had a favorable outcome (modified Rankin Scale 0-2) at the final follow-up. 81 patients (81/191, 42%) died. A younger age, less severe stroke, rtPA treatment, and large-artery atherosclerosis stroke subtype were related to a favorable outcome. Older age and presence of coronary artery disease were associated with death and rtPA treatment was inversely related to death. CONCLUSIONS: Prognosis of patients with a large MCA infarction is still poor. Favorable outcomes were found in only a fourth of the total patients, and a high mortality rate was still present. Intravenous rtPA treatment seemed to be related to a favorable outcome.

Effectiveness of contextual education for self-management in Thai Muslims with type 2 diabetes mellitus during Ramadan.

BACKGROUND: Fasting in Ramadan has adverse effects on health of Muslims with diabetes. Key strategies to prepare the patients are to provide appropriate health education to the patients prior to Ramadan and to adjust anti-diabetic medicines during Ramadan. OBJECTIVE: To study outcomes of the specific health care services that providing health education in parallel with counseling by Islamic leader MATERIAL AND METHOD: The Thai Muslims with type 2 diabetes mellitus were divided into two groups. There were 62patients in experimental group that was provided with specific health care service for Thai Muslims with diabetes in which health education prior to Ramadan and adjustment ofanti-diabetic medicine applied. The other was control group with 28patients that was provided only with original health care service. The results were monitored after Ramadan by interviews, weight and waist measurements, blood pressure measurement and blood tests. RESULTS: Both mean systolic and diastolic blood pressure were well controlled in both groups and slightly decreased after Ramnadan. The mean diastolic blood pressure of the experimental group decreased after Ramadan (p-value = 0.041). From behavior point of view, it was found that the patients in the experimental group had consumed less sweetenedfood (p-value = 0.002). There was no incidence ofsevere hypoglycemia in either experimental or control group. The number and portion of patients with hypoglycemic symptoms in experimental group were lower than those in controlled group (p-value = 0.013). CONCLUSION: Specific health care service by providing health education prior to Ramadan and adjustment ofanti-diabetic medicine application resulted in a positive effect as the patients tended to consume less sweetenedfood to keep blood sugar level in control. Fasting could affect the patients 'health in apositive way as it helps to control blood pressure, while in parallel, adjustment of anti-diabetic medicine application helps to prevent hypoglycemia. This health care service, which can be achieved in collaboration with a health care team and Islamic leaders, is useful and suitable for Thai Muslims with diabetes mellitus type 2.

Maternal vitamin D status, its associated factors and the course of pregnancy in Thai women.

CONTEXT: There are limited data on the prevalence of vitamin D inadequacy in pregnant women living in Southeast Asia and changes in their vitamin D status during pregnancy. OBJECTIVES: To determine the prevalence of vitamin D inadequacy, its predictive factors and the changes in vitamin D status during the course of pregnancy. DESIGN AND PATIENTS: A prospective study of 120 pregnant Thai women with gestational age <14 weeks. MEASUREMENTS: Serum 25 hydroxyvitamin D (25OHD) and clinical data were obtained at the first visit, in the second and third trimesters of pregnancy. Vitamin D inadequacy was defined as 25OHD <75 nm. RESULTS: The prevalences of vitamin D inadequacy were 83.3%, 30.9% and 27.4% for the first, second and third trimesters. The independent predictors of vitamin D inadequacy in the third trimester were not drinking vitamin-fortified milk (OR 11.42; 95% CI: 3.12-41.86), not taking prenatal vitamins (OR 9.70; 95% CI: 2.28-41.19) and having vitamin D deficiency in the first trimester (OR 10.58; 95% CI: 2.89-38.80). Vitamin D deficiency was not found in women taking prenatal vitamins. However, 20 women who took at least 400 IU/day of vitamin D from prenatal vitamins still had vitamin D insufficiency in the third trimester. CONCLUSIONS: Vitamin D inadequacy is common in pregnant Thai women, especially in the first trimester. Vitamin D supplementation may be needed prior to conception and during pregnancy. For areas with abundant sun exposure like Thailand, vitamin D supplementation at 400 IU/day is likely to prevent vitamin D deficiency, but is inadequate to prevent vitamin D insufficiency even at 800 IU/day.

The Efficacy of Oral Etoricoxib in Pain Control During Colposcopy-Directed Cervical Biopsy: A Randomized Control Trial.

OBJECTIVE: To investigate the effectiveness and safety of oral etoricoxib administration before colposcopic procedure for pain relief during and after colposcopy. METHODS: A prospective double-blind, randomized controlled trial was conducted at the colposcopy unit of Thammasat University Hospital, Thailand from August 2022 to January 2023. The participants were women undergoing colposcopy. They were allocated into two groups: etoricoxib group and control group. Thirty minutes prior to colposcopy, the participants received etoricoxib or placebo tablet. A numerical rating scale was used to evaluate pain upon speculum insertion, 3% acetic acid application, directed cervical biopsy (CDB), endocervical curettage (ECC), and 10 minutes and 24 hours after colposcopy. RESULT: One hundred and ten women were recruited and were divided equally into study and control groups. The mean age of participants was 42.6 years old. One-fourth of cases (29/110) had cervical intraepithelial neoplasia grade 2 or more histology. Subjects in etoricoxib group had less median pain scores during CDB, ECC, and 10-minute and 24-hour post procedure than the control group with statistical significance. Both groups had comparable side effects. CONCLUSION: Administration of oral etoricoxib 30 minutes before colposcopy could reduce pain during and up to 24-hour post colposcopy with minimal side effects.

Update on the risk factors for opisthorchiasis and cholangiocarcinoma in Thailand.

This study aimed to identify the recent risk factors for Opisthorchis viverrini infection and cholangiocarcinoma (CCA) to improve disease prevention. The participants were divided into the following 3 groups based on their health status: healthy control (nonOV and nonCCA), those with O. viverrini infection (OV), and those with CCA. A questionnaire was used to explore their lifestyle and behaviors. Multivariate logistic regression and backward elimination were used to identify the significant risk factors. The results showed that the significant risk factors for both O. viverrini infection and CCA were age>50 years (odd ratio (OR)=8.44, P<0.001, 95% confidence intervals (CI) 2.98-23.90 and OR=43.47, P=0.001, 95% CI 14.71-128.45, respectively) and raw fish consumption (OR=8.48, P< 0.001, 95% CI 3.18-22.63 and OR=3.15, P=0.048, 95% CI 1.01-9.86, respectively). A history of O. viverrini infection was identified as an additional risk factor for CCA (OR=20.93, P=0.011, 95% CI 2.04-215.10). This study provided an update on the risk factors for O. viverrini infection and CCA. Asymptomatic patients with O. viverrini infection, particularly those>50 years old, should be carefully monitored to prevent CCA.

Situational leadership styles, staff nurse job characteristics related to job satisfaction and organizational commitment of head nurses working in hospitals under the jurisdiction of the Royal Thai Army.

OBJECTIVE: To analyze the relationships between the situational leadership styles, staff nurse job characteristic with job satisfaction and organizational commitment of head nurses working in hospitals under the jurisdiction of the Royal Thai Army MATERIAL AND METHOD: The cross-sectional analytical study was conducted in 128 head nurses working in hospitals under the jurisdiction of the Royal Thai Army. Data were collected by mailed questionnaires. A total of 117 completed questionnaires (91.4%) were received for analysis. Statistical analysis was done using Pearson's Product Moment Correlation Coefficient. RESULTS: It was found that situational leadership styles were not correlated with job satisfaction and organizational commitment of head nurses. Staff nurse job characteristics had a low level of positive correlation with job satisfaction and organizational commitment of head nurses at 0.05 level of significance (r = 0.202 and 0.189 respectively). CONCLUSION: The hospital administrators should formulate policy to improve working system, human resource management and formulate policies and strategies based on situational leadership. In addition, they should improve the characteristics of staff nurse job by using surveys to obtain job satisfaction and organizational commitment.

Gynecologic Malignancy-Associated Venous Thromboembolism and Predictive Tool at Thammasat University Hospital.

OBJECTIVES: Aims were to investigate the prevalence and risk factors of venous thromboembolism (VTE) in gynecologic malignancy cases. Value of screening tool (Caprini) for prediction of VTE was also assessed. STUDY DESIGN: A retrospective study of gynecologic malignancy subjects who underwent major gynecological operation via exploratory laparotomy at Thammasat University Hospital, Pathum Thani, Thailand from January 2015 to December 2020. Participants were categorized into VTE and non-VTE groups. Caprini score, associated laboratory and clinical factors of both groups were evaluated. RESULTS: A total of 392 subjects were recruited into the study. Prevalence of VTE was 7.4 (29/392) percent. VTE was diagnosed in subjects with endometrial, ovarian and cervical cancer at percentage of 7.8 (15/192), 7.9 (11/138) and 5.7 (3/53), respectively. Demographic characters of both groups were comparable. VTE group had significant more Caprini score, platelets count and platelet lymphocyte ratio (PLR) than non-VTE group. Modified Caprini score (2 multiply Caprini score plus 1 multiply PLR) was generated for better VTE prediction. Sensitivity and specificity of Caprini (≥5.5) and modified Caprini scores (≥22.8) were 72.4 vs 39.4, and 79.3 vs 52.1 percent, respectively. CONCLUSION: Prevalence of VTE among gynecologic malignancy cases was 7.4 percent. The modified Caprini score was an alternative VTE predictive tool. Cut-off point of modified Caprini score at equal or more than 22.8 was proposed.

Knowledge Attitude and Practice of Postpartum Parturients Towards Cervical Cancer and Cervical Cancer Screening; Is Lack of Knowledge the Misleading Scapegoat?

OBJECTIVE: The aim of this study was to assess knowledge, attitude, and practices towards cervical cancer screening among postpartum subjects. STUDY DESIGN: This cross-sectional study was conducted at inpatient obstetrics ward at Thammasat University Hospital (TUH), Thailand. The period of study was between July 2020 and July 2021. Subjects were term Thai pregnant women who had age between 20 and 45 years old and delivered at TUH. Demographic characters, knowledge, attitude and practices regarding cervical cancer screening were collected. RESULTS: A total of 388 parturient was recruited into the study. Average age was 31 years old. Around 90 percent of subjects knew that every woman age between 21and 65 years old with or without children should be screened for cervical cancer despite having only 46.6 percent (181/388) of subjects that underwent postpartum cervical cancer screening. Almost half of the participant agreed that risky sexual behavior of both genders was not the cause of cervical cancer. Despite the availability of the HPV vaccine throughout the country, only 74.2 percent acknowledged that HPV was the cause and only 70.4% heard about the HPV vaccine. The mean attitude about the cervical cancer was relatively high with the mean of 3.19±0.46. Although the higher the score the better the attitude toward the statement, there were several correlations of having such attitude. CONCLUSION: Attention to postpartum cervical cancer screening was quite low even though high knowledge of cervical cancer and screening. Scant knowledge was not all of the troubles that we believed long time ago.

Effectiveness of auricular point acupressure with magnetic plate for pain management in acute postpartum cesarean section patients in Thammasat University Hospital: a randomized clinical controlled trial.

OBJECTIVE: To compare the effectiveness of auricular acupressure with or without magnetic plates to routine post cesarean pain management. METHODS: This randomized controlled trial was conducted at Obstetrics and Gynecology Department, Thammasat University Hospital, between January and June 2020. All participants were term primigravida pregnant women who underwent cesarean delivery during the study period. Participants were divided into three groups, namely control, placebo and study groups. Study (magnetic application) and placebo (non-magnetic application) groups received magnetic and non-magnetic auricular patches at both pinnas, respectively. Randomized assignments for each group were computer-generated, printed and kept in opaque sealed envelopes. The points in this study were Shenmen (TF4), Erzhong (HX1) and Penqiang (TF5). Visual analog scale (VAS) was immediately recorded up to 72 h after the operation. RESULTS: A total of 195 cases were enrolled during the period of study. Each group had 65 participants. The mean participant's age was 31 years old. Demographic and clinical characters among the three groups were comparable. Pain scores within 12 h postoperative period of all three groups were comparable. Between 36 and 72 h post-operation, study groups had significantly lower VAS than the control group. One-quarter of participants had comparable nausea and vomiting side effects. CONCLUSIONS: Auricular acupressure at Shenmen (TF4), Penqiang (TF5) and Erzhong (HX1) with magnetic plate attachment could significantly relieve post cesarean pain between 18 and 72 h.

Study on Preoperative Neutrophil/Lymphocyte (NLR) and Platelet/Lymphocyte Ratio (PLR) as a Predictive Factor in Endometrial Cancer.

OBJECTIVE: To evaluate predictive factors between serum inflammatory markers and malignancy potential of endometrium. METHODS: This retrospective study was conducted at the gynecological oncology unit, department of obstetrics and gynecology, at the faculty of medicine of Thammasat University. The study period was from 2017 to 2020. Endometrial cancer and benign gynecologic disease cases who underwent hysterectomy (with or without adnexectomy) during the study period were recruited. Demographic characteristics, histopathology reports and serum markers were also collected. RESULTS: The study included a study group of 49 participants with endometrial cancer and a control group consisting of 119 cases of benign uterine disease. The study group had statistically significantly higher mean ages, proportional menopausal status and instances of underlying diseases when compared with the control group. Neutrophil/Lymphocyte ratios (NLR) and Platelet/Lymphocyte ratios (PLR) could not meaningfully predict the malignant potential of endometrium in hysterectomy specimens. NLR and PLR were statistically associated with depth of myometrial invasion (MI) in endometrial cancer cases. NLR equal to or greater than 1.93 predicted MI more than half thickness with sensitivity, specificity, accuracy, positive (PPV) and negative predictive value (NPV) at a percentage of 83.3, 52.8, 37.0, 90.5 and 60.4, respectively. PLR equal to or greater than 134.95 predicted MI of greater than fifty percent thickness with sensitivity, specificity, accuracy, PPV and NPV at 75.0, 55.6, 36.0, 87.0 and 60.4 percent, respectively. CONCLUSION: NLR and PLR have positive associations with myometrial invasion of endometrial cancer.

Causes of ischemic stroke in young adults in Thailand: a pilot study.

There is scarce information about ischemic stroke in young adults in Thailand. The purpose of this study was to explore the causes of ischemic stroke in Thai adults age 16-50 years. All ischemic strokes treated in persons in this age range between August 2006 and December 2008 were prospectively included. Stroke subtypes were classified according to Trial of ORG 10172 in Acute Stroke Treatment criteria as large-artery atherosclerosis (LAA), cardioembolism (CE), small-artery occlusion (SAO), stroke of other determined cause (OC), or stroke of undetermined cause (UND). The study group comprised 99 patients, with a mean age of 40 years and a mean National Institutes of Health Stroke Scale score of 8. In patients age <41 years, UND (32%; P = .0652) and OC (30%; P = .0167) were the most common stroke subtypes. In patients age 41-50 years, SAO (29%; P = .0947) and UND (21%) were the most common subtypes. Antiphospholipid syndrome (6%) and neurosyphilis (4%) were the leading causes of the OC subtype. Hyperlipidemia, smoking, and hypertension were common risk factors. Although the distribution of stroke subtypes was comparable with that found in previous studies from other countries, the identified causes were different.

Low vs standard dose of recombinant tissue plasminogen activator in treating East Asian patients with acute ischemic stroke.

BACKGROUND: Intravenous recombinant tissue plasminogen activator (rtPA) has been approved to treat eligible patients with acute ischemic stroke within 4.5 hours of onset. The rationale for using a lower dose in Asian patients came from concerns about intracerebral hemorrhage because of the racial differences in blood coagulation-fibrinolysis factors. AIM: The aim of this systemic review was to compare the data from previous studies to address the efficacy and safety of using low-dose vs standard-dose rtPA in treating patients with acute ischemic stroke. MATERIAL AND METHODS: Previous studies were searched and analyzed. The confidence interval was calculated at 95%. Baseline characteristics and outcomes of the patients were compared between two doses of rtPA (0.6 vs 0.9 mg/kg), using Z test for two independent proportions. RESULTS: Patients who received standard-dose rtPA had significantly higher favorable outcome at 3 months (33.1 vs 47.2%, P<0.0001), without significant difference in the rates of symptomatic intracerebral hemorrhage (3.5 vs 4.3%, P = 0.42) and mortality (13.1 vs 11.7%, P = 0.56). However, patients in the low-dose group were older and had more severe stroke. CONCLUSIONS: Patients receiving standard-dose rtPA seem to have higher rates of favorable outcome. However, there were significant differences in baseline characteristics between the two groups. A further, well-designed, randomized study in the same population is still needed to clarify the suspected benefit of the standard dose for East Asian patients.

Factors associated with the effectiveness of diabetes care at primary care settings.

OBJECTIVE: To assess the effectiveness of diabetes care and the factors associated with the effectiveness at primary care settings. MATERIAL AND METHOD: Data were obtained from reviewing of 1,795 medical patient files of patients with type 2-DM treated at forty-eight primary care settings. Information recorded included characteristics, body mass index, co-morbidity, fasting blood glucose (FBG) and HbA1c levels and health personnel mix types (physicians, pharmacists, nurses, health technical officers and community health workers). HbA1c level of diabetes in 542 of 1,795 medical patient files were analyzed. Glycemic controllability of diabetes patients was defined using FBG and HbA1c levels as the effectiveness indicators of diabetes care. RESULTS: Of 1,795 patients, 40.8% were able to control their FBG levels and 22.7% of the 542 patients who have HbA1c data could control their HbA1c levels. Multivariate analysis confirmed that age and health personnel mix types are significant factors for glycemic controllability as measured by FBG level (p < 0.01). By measuring HbA1c level, age was also significant factor in diabetes care effectiveness (p = 0.012). CONCLUSION: Age was a significant factor in controlling both FBG and HbA1c levels in type 2 diabetes whereas health personnel, physicians and pharmacists, are significant factors in increasing effectiveness of diabetes care. The policy makers should consider distributing these health personnel to primary care settings and this would be a challenge for the policy makers to develop such a strategy and to implement this policy.

Prevalence of high-grade cervical intraepithelial neoplasia (CIN) in the patients with atypical squamous cells of undetermined significance (ASC-US) pap smears: hospital based, dynamic population area.

OBJECTIVE: To determine the prevalence of cervical intraepithelial neoplasia (CIN) 2-3 (high-grade CIN) among women with Atypical Squamous Cells of Undetermined Significance (ASC-US) Pap smear. MATERIAL AND METHOD: A retrospective medical record review of220 women with ASC-US cervical Pap smear, including age, menstruation status, parity, placed of residence, occupation, main complaint, and definite histopathological result between July 2007 and January 2010 was done. RESULTS: The prevalence of high-grade CIN2 and CIN 3 in Thammasat University Hospital were 8.6% and 3.2% respectively No cancer was found in the present study. There was no statistically significant difference in the prevalence of high-grade CIN between the patients who were 50 years old or more and those who were younger. CONCLUSION: Prevalence of high-grade CIN in women with ASC-US was 11.8%. Immediate colposcopy is recommended in women with ASC-US

Prevalence of abnormal cervical cytology by liquid based cytology in the antenatal care clinic, Thammasat University Hospital.

OBJECTIVE: To determine the prevalence of abnormal cervical cytology by liquid based cytology (LBC) in pregnant women who attended the antenatal care clinic at Thammasat University Hospital. MATERIAL AND METHOD: LBC was performed on specimens from the collecting vial containing preserved cell solution (Cytyc, Boxborough, MA) in pregnant women who attended antenatal care at the antenatal care clinic, Thammasat University Hospital between March and July 2010. One hundred forty three pregnant women were recruited in the present study. All cytological reports were reviewed by senior cytopathologists for accurate diagnosis using the Bethesda System 2001 criteria. Patients with abnormal results as "abnormal squamous/glandular cells of undetermined significant" or more over were referred for colposcopic examination. RESULTS: One hundred forty three pregnant women participated in the present study. The average age was 27.09 years. There were 10 abnormal Pap smear results with four, five, and one cases of ASC-US, LSIL and HSIL respectively The prevalence of abnormal cervical cytology in this investigation was 7% with 0.7% high-grade cervical intraepithelial neoplacia. Only 6% of participants had the correct understanding of the necessity of Pap smear testing. Thirty-one percent of multiparous pregnant women in the present study had no previous Pap smear screening. The majority of participants had coitarche before the age of 20. CONCLUSION: The prevalence of abnormal cervical cytology in pregnant patients attending the antenatal care clinic at Thammasat University Hospital was 7%. The cervical cytology and related education were highly recommended in antenatal care clinic to increase cervical cancer screening coverage among reproductive age women.

A 1-year experience with liquid-based and conventional papanicolaou smear in Thammasat University Hospital.

OBJECTIVE: The aim of the present study was to evaluate the prevalence of abnormal Pap smears as detected by liquid-based (LBP) and conventional (CPP) techniques in women who were patients in the gynecologic clinic, Thammasat University Hospital. MATERIAL AND METHOD: Retrospective analysis of cervical cancer screening, histopathological findings and operative procedures was done between January 2009 and December 2009. Of the 6,332 participants who underwent gynecological examination and cervical screening and had a Pap smear result as atypical squamous cells of undetermined significance or worse would be performed a further colposcopic examination. RESULTS: A total of 6,332 women were screened for cervical cancer in the one year period. A total of 169 abnormal Pap smears were found. Of 497 (8%) and 5,835 (92%) women were screened by LBP and CPP, respectively. The mean age of patients was 39.45 years old (14-90) and 1,550 (24.5%) women were post menopausal. The Prevalence of abnormal Pap smears was 4.0 and 2.6% in the LBP and CPP groups, respectively. Among LBP group, patients with atypical smear and LSIL (low grade squamous intraepithelial lesion) were 11 (2.29%) and 9 (1.8%), respectively. While CPP group, patient with atypical smear, LSIL, HSIL (high grade squamous intraepithelial lesion) and cancer were 73 (1.25%), 49 (0.84%), 25 (0.43%) and 2 (0.03%), respectively. CONCLUSION: The prevalence of abnormal Pap smear in women who attended gynecologic clinic of Thammasat University Hospital was 4.0% and 2.6 % per LBP and CPP group, respectively. There was no significant difference in the incidence of atypical smear and false positive result between LBP and CPP.

Antidote activity and protective effects of Lysiphyllum strychnifolium (Craib) A. Schmitz extract against organophosphate pesticide in omethoate-treated rats.

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Verifying causes of death in Thailand: rationale and methods for empirical investigation.

BACKGROUND: Cause-specific mortality statistics by age and sex are primary evidence for epidemiological research and health policy. Annual mortality statistics from vital registration systems in Thailand are of limited utility because about 40% of deaths are registered with unknown or nonspecific causes. This paper reports the rationale, methods, and broad results from a comprehensive study to verify registered causes in Thailand. METHODS: A nationally representative sample of 11,984 deaths was selected using a multistage stratified cluster sampling approach, distributed across 28 districts located in nine provinces of Thailand. Registered causes were verified through medical record review for deaths in hospitals and standard verbal autopsy procedures for deaths outside hospitals, the results of which were used to measure validity and reliability of registration data. Study findings were used to develop descriptive estimates of cause-specific mortality by age and sex in Thailand. RESULTS: Causes of death were verified for a total of 9,644 deaths in the study sample, comprised of 3,316 deaths in hospitals and 6,328 deaths outside hospitals. Field studies yielded specific diagnoses in almost all deaths in the sample originally assigned an ill-defined cause of death at registration. Study findings suggest that the leading causes of death in Thailand among males are stroke (9.4%); transport accidents (8.1%); HIV/AIDS (7.9%); ischemic heart diseases (6.4%); and chronic obstructive lung diseases (5.7%). Among females, the leading causes are stroke (11.3%); diabetes (8%); ischemic heart disease (7.5%); HIV/AIDS (5.7%); and renal diseases (4%). CONCLUSIONS: Empirical investigation of registered causes of death in the study sample yielded adequate information to enable estimation of cause-specific mortality patterns in Thailand. These findings will inform burden of disease estimation and economic evaluation of health policy choices in the country. The development and implementation of research methods in this study will contribute to improvements in the quality of annual mortality statistics in Thailand. Similar research is recommended for other countries where the quality of mortality statistics is poor.

Cause-of-death ascertainment for deaths that occur outside hospitals in Thailand: application of verbal autopsy methods.

BACKGROUND: Ascertainment of cause for deaths that occur in the absence of medical attention is a significant problem in many countries, including Thailand, where more than 50% of such deaths are registered with ill-defined causes. Routine implementation of standardized, rigorous verbal autopsy methods is a potential solution. This paper reports findings from field research conducted to develop, test, and validate the use of verbal autopsy (VA) methods in Thailand. METHODS: International verbal autopsy methods were first adapted to the Thai context and then implemented to ascertain causes of death for a nationally representative sample of 11,984 deaths that occurred in Thailand in 2005. Causes of death were derived from completed VA questionnaires by physicians trained in ICD-based cause-of-death certification. VA diagnoses were validated in the sample of hospital deaths for which reference diagnoses were available from medical record review. Validated study findings were used to adjust VA-based causes of death derived for deaths in the study sample that had occurred outside hospitals. Results were used to estimate cause-specific mortality patterns for deaths outside hospitals in Thailand in 2005. RESULTS: VA-based causes of death were derived for 6,328 out of 7,340 deaths in the study sample that had occurred outside hospitals, constituting the verification arm of the study. The use of VA resulted in large-scale reassignment of deaths from ill-defined categories to specific causes of death. The validation study identified that VA tends to overdiagnose important causes such as diabetes, liver cancer, and tuberculosis, while undercounting deaths from HIV/AIDS, liver diseases, genitourinary (essential renal), and digestive system disorders. CONCLUSIONS: The use of standard VA methods adapted to Thailand enabled a plausible assessment of cause-specific mortality patterns and a substantial reduction of ill-defined diagnoses. Validation studies enhance the utility of findings from the application of verbal autopsy. Regular implementation of VA in Thailand could accelerate development of the quality and utility of vital registration data for deaths outside hospitals.