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1.
Tuberc Res Treat ; 2012: 708423, 2012.
Article in English | MEDLINE | ID: mdl-22701170

ABSTRACT

Objective. To analyse survival in patients with pulmonary tuberculosis (PTB) and factors associated with such survival. Design. Study of a cohort of patients aged over 14 years diagnosed with PTB from January 1, 1998 to July 31, 2005. During 2004-2006 a home visit was made to each patient and, during 2008-2009, they were visited again. During these visits a follow-up interview was administered; when the patient had died, a verbal autopsy was conducted with family members. Statistical analysis consisted of survival tests, Kaplan-Meier log-rank test and Cox regression. Results. Of 305 studied patients, 68 had died due to PTB by the time of the first evaluation, 237 were followed-up for a second evaluation, and 10 of them had died of PTB. According to the Cox regression, age (over 45 years) and treatment duration (under six months) were associated with a poorer survival. When treatment duration was excluded, the association between poorer survival with age persisted, whereas with having been treated via DOTS strategy, was barely significant. Conclusions. In the studied area it is necessary that patients receive a complete treatment scheme, and to give priority to patients aged over 45 years.

2.
Int J Tuberc Lung Dis ; 14(1): 34-9, 2010 Jan.
Article in English | MEDLINE | ID: mdl-20003692

ABSTRACT

OBJECTIVES: To analyse the proportion of multidrug-resistant tuberculosis (MDR-TB) in cultures performed during the period 2000-2002 in Los Altos, Selva and Norte regions, Chiapas, Mexico, and to analyse MDR-TB in terms of clinical and sociodemographic indicators. METHODS: Cross-sectional study of patients with pulmonary tuberculosis (PTB) from the above regions. Drug susceptibility testing results from two research projects were analysed, as were those of routine sputum samples sent in by health personnel for processing (n = 114). MDR-TB was analysed in terms of the various variables of interest using bivariate tests of association and logistic regression. RESULTS: The proportion of primary MDR-TB was 4.6% (2 of 43), that of secondary MDR-TB was 29.2% (7/24), while among those whose history of treatment was unknown the proportion was 14.3% (3/21). According to the logistic regression model, the variables most highly associated with MDR-TB were as follows: having received anti-tuberculosis treatment previously, cough of >3 years' duration and not being indigenous. CONCLUSIONS: The high proportion of MDR cases found in the regions studied shows that it is necessary to significantly improve the control and surveillance of PTB.


Subject(s)
Antitubercular Agents/pharmacology , Mycobacterium tuberculosis/drug effects , Tuberculosis, Multidrug-Resistant/epidemiology , Tuberculosis, Pulmonary/epidemiology , Adolescent , Adult , Communicable Disease Control/methods , Cough/epidemiology , Cough/microbiology , Cross-Sectional Studies , Female , Humans , Indians, North American , Logistic Models , Male , Mexico/epidemiology , Microbial Sensitivity Tests , Middle Aged , Sputum/microbiology , Time Factors , Tuberculosis, Multidrug-Resistant/drug therapy , Tuberculosis, Pulmonary/drug therapy , Young Adult
3.
Int J Epidemiol ; 37(4): 786-95, 2008 Aug.
Article in English | MEDLINE | ID: mdl-18511492

ABSTRACT

BACKGROUND: Chiapas is one of the Mexican states having the highest rates of Pulmonary Tuberculosis (PTB), due to the numerous factors impeding its management and control (poverty, poor housing and nutrition, shortage of health resources, among others). OBJECTIVES: To analyse the PTB mortality of a cohort of patients in Los Altos Region of Chiapas, who had been diagnosed with PTB from January 1, 1998 to December 31, 2002; and, to identify demographic, socioeconomic and health services utilization factors, associated with death from PTB. METHODS: Analysis of a cohort of patients aged over 14 years diagnosed with PTB in the above mentioned period (n = 431) in Los Altos region of Chiapas. The records of the Tuberculosis Programme were reviewed, and patients were located through a search attempting to locate them in their homes. Those found alive were interviewed and asked to provide sputum samples. In the case of deceased patients, a verbal autopsy was obtained from a member of their family. RESULTS: The records of the PTB Programme in the area were incomplete and erroneous in many cases. The results of the home follow-up visits were: 208 (48%) patients located alive, five of whom were still PTB positive (three with multi-drug resistance); 145 (34%) could not be located and 78 (18%) had already died. Apparently, in at least 40 cases, the deaths were associated with PTB. Of these forty, 33 (83%) died without having received any medical care. The factors associated with dying from PTB were: 45 and over years of age (OR = 1.3; 95% CI = 0.98-1.3), 0-3 schooling years (OR = 3.3; 95% CI = 1.1-9.6), engaged in agriculture (OR = 2.2; 95% CI = 1.1-4.4), not living in main villages of their municipality (OR = 1.2; 95% CI = 1.0-1.3), living in a rural community (OR = 2.7; 95% CI = 1.1-6.8), not having been treated in DOTS (OR = 1.2; 95% CI = 1.0-1.3) and having defaulted from treatment (OR = 11.5; 95% CI = 5.3-24.8). CONCLUSIONS: The high rate of mortality due to PTB observed constitutes a serious public health problem deserving attention. There is an urgent need to evaluate and restructure the Tuberculosis Programme in the studied area.


Subject(s)
Delivery of Health Care , Tuberculosis, Pulmonary/mortality , Adolescent , Adult , Age Factors , Antitubercular Agents/therapeutic use , Cross-Sectional Studies , Female , Humans , Indians, Central American , Male , Mexico/epidemiology , Middle Aged , Odds Ratio , Patient Acceptance of Health Care , Poverty , Risk , Rural Population , Socioeconomic Factors , Treatment Outcome , Tuberculosis, Pulmonary/drug therapy , Tuberculosis, Pulmonary/ethnology , Young Adult
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