Health
Vol.07 No.11(2015), Article ID:61181,11 pages
10.4236/health.2015.711164

Determinants of Treatment Delays among Pulmonary Tuberculosis Patients in Enugu Metropolis, South-East, Nigeria

Omotowo Ishola Babatunde1*, Eke Christopher Bismark2, Nwobi Emmanuel Amaechi1, Eyisi Ifeanyi Gabriel1, Agwu-Umahi Rebecca Olanike1

1Department of Community Medicine, College of Medicine, University of Nigeria, Enugu, Nigeria

2Department of Paediatrics, College of Medicine, University of Nigeria, Enugu, Nigeria

Copyright © 2015 by authors and Scientific Research Publishing Inc.

This work is licensed under the Creative Commons Attribution International License (CC BY).

http://creativecommons.org/licenses/by/4.0/

Received 29 August 2015; accepted 14 November 2015; published 17 November 2015

ABSTRACT

Introduction: Globally, the burden of Tuberculosis is escalating. Early diagnosis and prompt initiation of treatment are essential to achieve an effective tuberculosis control programme. Objective: To investigate the duration of delay for treatment and assess the determinants of treatment delays among pulmonary tuberculosis patients in Enugu metropolis, South-East, Nigeria. Methods: This cross sectional study was conducted among 219 pulmonary tuberculosis patients in six randomly selected DOTS centres in the three LGAs in Enugu metropolis. Data were analysed using SPSS version 17, and statistical significance of association between variables was assessed using Chi-square test at p < 0.05. STATA version 13.1 was used to calculate the positive predictors of TB treatment delays using logistic regression. Ethical clearance was obtained from the Health Research Ethics Committee of UNTH and verbal informed consent was obtained from the participants. Results: Overall, 291 respondents took part in the study, 55.7% were males, 84.4% were aged between 16 to 60 years, while their mean age was 35.4 ± 12.6 years. Most of the participants 32.9%, 26.9%, 15.5% were traders, civil servants, and students respectively. Among the respondents, 3.6% knew that Mycobacterium tuberculosis is the cause of tuberculosis. Among the participants, only 23.3% presented for first appropriate treatment consultation within 1 - 30 days of onset of symptoms. The reasons given by the respondents for the delay are: ignorance of necessity treatment (36.1%), Lack of money (24.2%), no health facility close to the house (13.2%), and other reasons 26.5%. Delay in treatment was found to be significantly associated with HIV status (X2 = 23.412, df = 8, p = 0.003), knowledge of the cause of TB (X2 = 42.322, df = 28, p = 0.040), TB symptoms experienced (X2 = 46.857, df = 20, p = 0.001), occupation (X2 = 34.217, df = 20, p = 0.025), and distance of the health facility from the respondents’ residence (X2 = 34.908, df = 8, p = 0.000). The positive predictors of delayed treatment, using logistic regression, were first presentation at: patent medicine dealer (OR 12.3 CI: 3.22 - 36.23), private hospital (OR 10.6 CI: 5.73 - 17.94), prayer house (OR 7.2 CI: 2.75 - 23.64), and traditional healer (OR 11.9 CI: 6.87 - 32.85). Conclusion: Majority of TB patients in this study did not present early to health facilities. The positive predictors of delayed presentation for appropriate PTB treatment were first presentations at inappropriate treatment centres. There is need to intensify public health awareness among potential TB patients on the associated risks of treatment delay to prevent transmission. Unskilled health care providers should refer suspected PTB patients promptly to facilitate their treatment.

Keywords:

Determinants, Delay, Tuberculosis

1. Introduction

Approximately one third of the world’s population are infected with tuberculosis bacilli and at risk of developing active tuberculosis (TB) [1] . In 2012, there were an estimated 13 million TB cases, including 8.6 million incident cases and 1.3 million died from the disease [1] . Smear-positive pulmonary TB, the most likely source of TB transmission in the community constitutes 35% of new TB cases.

Most tuberculosis patients were not visiting health facility but transmit disease to healthy individuals in the community for longer time in Nigeria [2] [3] . Nigeria is ranked 13th among the 22 high burden countries for TB in the world and 3rd in Africa [1] [2] . The 2012 national TB prevalence survey in Nigeria revealed that 75% of the previously undetected cases had sputum smear positive [1] [2] .

Early diagnosis of the disease and prompt initiation of treatment are essential for an effective tuberculosis control programme. Delay in the diagnosis may worsen the disease, increase the risk of death and enhance tuberculosis transmission in the community [4] . Also, it is estimated that an untreated smear-positive patient can infect between ten and fifteen contacts annually, and over 20 during the natural history of the disease until death [2] [5] - [7] . The importance of having effective methods of early detection and prompt treatment of the cases in the communities cannot be ignored [7] .

Studies conducted in several countries have shown that patient and health care delay are major problems in the control of tuberculosis. The study conducted at the North Middlesex University, London, UK reported median patient related delay between 34.5 and 54 days, median health related delay was 29.5 days [8] . Considerable delays were observed in the studies done in Japan [9] [10] . Median patient delay of 60 days was documented in a study conducted in Tanzania [11] .

Studies conducted in Ibadan and Lagos in South-West, Nigeria revealed high prevalence of treatment delay among pulmonary TB patients [3] [12] . These delays are attributable to patients and doctors. Another study from Nigeria showed that the mean patient delay was 13.2 ± 7.4 weeks [13] . Causes of these delays should be investigated to be able to control TB effectively. Our study was aimed at estimating duration of delay for treatment by pulmonary TB patients in Enugu metropolis and assessing the determinants of patient related factors associated with the treatment delays.

2. Methods

2.1. Background

The study was conducted among pulmonary tuberculosis patients in Enugu metropolis. Enugu is the capital of old Eastern region, and current Enugu state in south-east, Nigeria, with estimated population of 722,664 people. The metropolis has three Local Government Areas which are Enugu east, Enugu south and Enugu north. There are sixteen DOTS centres in Enugu metropolis. In Enugu state, tuberculosis is treated free. Diagnosis and treatment of TB patients are according to the National Tuberculosis Control Programme guidelines. All the DOTS centres treat both sputum smear positive and sputum smear negative pulmonary TB cases. All presumptive TB cases (TB suspects) submit two sputum samples by using spot-early morning approach for sputum smear microscopy, and also do HIV counselling. A sputum smear positive TB case is when one or two samples are positive [2] . The laboratory diagnosis of TB rests mainly on the identification of the tubercle bacilli in a clinical specimen by using any of the following laboratory methods available; microscopy, culture or new molecular tests e.g. Gene Xpert MTB/RIF and line probe assays [2] . Smear negative cases are diagnosed on clinical findings, and chest x ray. All new pulmonary TB patients who were diagnosed were recruited into our study.

2.2. Study Design

A cross sectional study was conducted among all new pulmonary tuberculosis patients who were diagnosed and commenced treatment during February 1 to October 30, 2014 in six randomly selected among the sixteen DOTS centres in the three local government areas in Enugu metropolis. All patients that participated in the study are new as part of the inclusion criteria, while all extra-pulmonary tuberculosis patients were excluded. All the subjects were interviewed using structured questionnaire. The questions were pretested and the interviewers were supervised regularly throughout the duration of the study. All the questions were closed and included socio- demographic characteristics, knowledge of pulmonary tuberculosis which includes tuberculosis symptoms, transmission and treatment. Also, they were asked duration of symptoms before first visit to the health facility, places they sought for treatment before first visit to the health facility, reasons for delay before visit to the health facility and distance from their residence to the health facility.

2.3. Definitions of Different Types of Delays

Patient delay is when the time interval from the appearance of the major pulmonary TB symptoms until the first visit to a medical facility exceeds 30 days. Health facility referral delay is when the time interval between the first visit to a health facility and the time the patient is seen at any health facility with DOTS services exceed two days. Diagnosis delay is when the time between first consultation at a health facility with DOTS services and a time when a definitive diagnosis of tuberculosis is made exceeded three days. Treatment delay is when interval between the time of diagnosis and treatment initiation exceeded one day. Health facility delay is when the time interval from when the patients were first seen at health facility with DOTS and treatment initiation exceeded five days. Total delay is the sum of patient delay and health service delay [11] [14] .

2.4. Ethical Approval

Ethical approval was obtained from Health Research Ethics Committee of University of Nigeria Teaching Hospital (UNTH), Enugu. Permission was obtained from National TB Control Programme, Enugu State, Heads of all the health centres, and DOTS providers in the facilities used for the study.

Verbal informed consent was obtained from all study participants after explaining benefits of the study and assurance of confidentiality.

2.5. Data Analysis

Data collected from 219 pulmonary TB patients was analysed using SPSS version17 and statistical significance of association between variables was assessed using Chi-square test at p < 0.05. The positive predictors of delayed treatment were calculated by STATA version 13.1. Also, the Odds Ratio and Confidence Interval were calculated to identify the factors associated with the delay in seeking treatment using bivariate and multivariate logistic regression analysis. Variables that were significant at a level of up 10% on bivariate analysis were included in multivariate logistic regression.

3. Results

3.1. Socio-Demographic Characteristics of the Study Participants

A total of 219 newly diagnosed pulmonary tuberculosis patients (PTB) were enrolled in the 10 months study period, of which 122 (55.7%) were males and 97 (44.3%) were females. The mean age was 35.4 ± 12.6 years. Among the study participants, One hundred and fifty nine (72.6%) had sputum smear positive, while 60 (27.3%) were HIV positive. Most of the participants: 72 (32.9%), 59 (26.9%), 34 (15.5%) were traders, civil servants, and students respectively, while 15 (6.8%) were unemployed. With regards to education 15 (6.8%) had no formal education, 33 (15.1%) completed primary education, while 83 (37.9%) and 88 (40.2%) had secondary and tertiary education respectively. Majority of the participants 177 (80.8%) are Igbos, while Yorubas and Hausas were 19 (8.7%) and 11 (5%) respectively. Also, majority of the participants 94 (42.9%) had income of less than N40,000 ($200) per annum, while only 3 (1.4%) had income >1,000,000 naira (>$5000) per annum. The most prominent religion among the participants is Christianity 183 (83.6%), while 20 (9.1%) and 15 (6.8%) were Muslims and African traditional worshipers respectively. One hundred and three participants (47%) had more than 5 individuals per household, while 30 (13.7%) and 86 (39.3%) had between 1 - 2 and 3 - 5 individuals per household (Table 1).

Table 1. Socio-demographic characteristics of the participants and duration of delay.

3.2. Knowledge and Symptoms Experienced by the Study Participants.

Table 2 shows that majority of the participants 30.6%, 21.9% and 21.9% believed that alcohol, smoking and dust are the causes of TB respectively, while only 0.9% knew that mycobacterium tuberculosis is the cause. Also, most of the participants (93.1%) knew that cough is a symptom. Among the participants, 83.1%, 11.8% and 0.9% knew that TB can be transmitted through cough, sneezing and talking respectively, while 4.2% believed sharing of spoons or cups could transmit it. Majority of the participants (94.9%) experienced cough, but 0.9%, 0.55 and 1.9% experienced haemoptysis, weight loss and night fever respectively.

3.3. Facilities First Attended and Delay by TB Patients

The facilities patients first visited included patent medicine dealer: 75 (34.2%), hospital: 83 (37.9%), prayer house: 14 (6.4%), traditional healers: 19 (8.7%), while those that visited other places were 28 (12.8%) (Table 3).

Among the study participants, 168 (76.7%) delayed presentation to the DOTS facilities. The study also

Table 2. Knowledge and symptoms experienced by the study participants.

Table 3. Facilities TB patients go first.

revealed that 75 (34.3%), 32 (14.6%), and 24 (10.9%) delayed treatment for 6 weeks, 8 weeks, and 12 weeks respectively; while 37 (16.9%) delayed for more than 16 weeks.

Reasons given by the respondents for delay included lack of money 53 (24.2%), long distance of health facility from residence 79 (36.1%), Thirty eight (17.3%) felt it was not necessary to seek treatment. Lack of awareness of DOTS 24 (10.9%), while those that gave other reasons were 25 (11.5%) (Table 4).

Patient’s delay was found to be significantly associated with HIV status (X2 = 23.412, P = 0.003), distance of DOTS facility from the patient’s residence (X2 = 34.908, P = 0.000), symptoms experienced by TB patients (X2 = 46.857, P = 0.001), knowledge about the causes of TB (X2 = 42.322, P = 0.040) and occupation of the participants (X2 = 34.217, P = 0.025). However, the study revealed that patients’ delays were not significantly associated with age (X2 = 24.057, P = 0.088), level of educational (X2 = 20.194, P = 0.064) and sex of the patients (X2 = 1.310, P = 0.861) (Table 5).

3.4. Predictors of TB Treatment Delay

The positive predictors of delayed treatment, using logistic regression, were first presentation at: patent medicine dealer (OR 12.3 CI: 3.22 - 36.23), private hospital (OR 10.6 CI: 5.73 - 17.94), prayer house (OR 7.2 CI: 2.75 - 23.64), and traditional healer (OR 11.9 CI: 6.87 - 32.85), distance of DOTS facility from the residence (OR 3.6, CI: 1.41 - 16.35), HIV (OR 2.4 CI: 1.0 - 15.5), Occupation (OR 5.3 CI: 1.1 - 14.3) and symptoms experienced (OR 7.6 CI: 2.9 - 20.8) (Table 6).

3.5. Delay of Seeking Treatment by TB Patients

Among the study participants, 168 (76.7%) of patients delayed seeking treatment at the DOTS facility. The mean delay from onset of symptoms to first visit to the DOTS facility was 10.2 ± 7.3 weeks. The maximum patient delays was found in 37 (16.9%) patients who first presented at DOTS facility after 12 weeks, while 131 (59.8%) presented between 4 - 12 weeks after the onset of symptoms (Table 7).

4. Discussion

Understanding the factors associated with patient delays is vital for the achievement of the Global Plan to Stop TB, which aims to halve the prevalence and deaths from TB by 2015 [15] . It is also known that early detection and treatment of TB patients are one of the strategies of WHO to reduce the diseases morbidity and mortality throughout the world. Our study estimated the duration of delay in seeking treatment at DOTS facilities, and factors associated with the delay. The overall median delay among TB patients in our study was 10 weeks. The median delay in this study is longer than in the studies conducted by Fatiregun and Ejeckam in Nigeria, Odusanya and Babafemi in Nigeria, Endalew et al. in Ethiopia, Tegegn et al. in Ethiopia, and Alexis et al. in Cameroon where 60 days, 60 days, 30 days, 63 days, and 30 days were found respectively [3] [11] [16] - [18] . However, the delay is shorter than in the study done in Tanzania [19] where 120 days was found, but similar to a study done in Ethiopia [11] where duration of 78 days was reported. The long delay might be due to the fact that the symptoms mostly experienced by TB patients are thought to be mild that could be treated by traditional healers and other non medical facilities. Some symptoms experienced may be taken for mild chest infections which they just take self medication or visit patent medicine dealers. More than 60% of the patients first went to patent medicine dealers, prayer houses, and traditional healers for treatment after the onset of the symptoms. Most of the patients (69.3%) that went for treatment at patent medicine dealers delayed seeking treatment at DOTS facility. This could be as a result of poor collaboration between the National TB control programme and patent medicine dealers in the study area. There is need to improve public private partnership with National TB control programme so that TB suspects will be referred early to DOTS facilities for sputum smear microscopy and other investigations necessary for confirmation of tuberculosis. However, the proportion of patients (76.7%) who delayed presentation at the DOTS facility in this study are similar to studies conducted in Tanzania, and Ethiopia [11] [19] , but slightly less than 83%, and 81% found in the studies done in Lagos, Nigeria [12] [20] .

In our study, the major reasons for delay are far distance of the DOTS facility (36.1%) and poor socio-economic conditions (24.2%). Other reasons that contributed to the delay include lack of awareness of DOTS, and some felt it was not necessary. These reasons were similar to those reported in the study in Syrian Arab Republic conducted among 800 new smear positive pulmonary TB patients, and in Zambia where lack of

Table 4. Reasons for delay for more than 30 days before presentation at DOTS facility.

Table 5. Relationship of different variables with treatment delay.

Table 6. Binary logistic regression analysis for positive predictors of TB treatment delay.

Table 7. Period of TB patients presentation at the DOTS facility after onset of symptoms.

money was a major contributing factor to the patient delay [21] [22] . Factors that are significant predictors of patient delay in our study are HIV status, distance of DOTS facility, symptoms experienced, knowledge of the patients, and occupation of patients. All these factors are reported in the studies done in Ghana, Tanzania, and Gambia [4] [19] [23] , while other factors reported to be significant in the studies such as educational level, sex, and age could not be found in our study. This could be due to the fact that our study was conducted in the state capital, and majority of the study participants are students (15.5%), and civil servants (26.9%).

Our findings in this study showed that there was relationship between patient’s delay in seeking treatment and their knowledge of causes, transmission, and symptoms of TB experienced. This is similar to findings in the study done among rural Vietnamese adults, while the study done in Ibadan, Nigeria found no relationship [3] [24] . The low knowledge in our study might be due to low health education on TB through radio and television to the public by the National TB control programme.

The association of patient’s delay with sex in the studies done in Ibadan, Nepal, and Bangladesh [3] [25] [26] were different from our findings in this study where there was no association, but the results were similar to studies done in Lagos, Ethiopia and India [12] [21] [27] . The proportion of females that delayed treatment were more than males in this study, which is comparable to the results reported in studies in Ghana, Nigeria, South Africa, and Tanzania [4] [28] - [30] . This difference could be attributed to socio-economic inequality between males and females in our study area. These findings indicate the need to increase tuberculosis awareness among females attending health facilities for other reasons such as ante-natal clinics, maternal and child health clinics for immunization and other services. The result in our study is different from what was observed in a study done in Southern India that employed men face difficulties to get a leave of absence from work to visit health services [31] . This delay was attributed to male behaviour which is socialization and care process that is detached from male practice [32] . All these reasons might be why more males delayed seeking treatment compared to females. However, more males (55.7%) compare to females (44.3%) were TB patients in our study. This is similar to reported cases in the studies conducted in Ibadan, Nigeria [3] [28] .

In this study, patients with no formal and primary education delayed presentation at DOTS facilities compare to those who had secondary and tertiary education. This result is similar to findings reported in other studies conducted in Ethiopia and China where illiterate patients are 3.73 times more likely delay when compared with patients who had college and above education level [16] [33] - [35] . Also in Yemen, illiterate patients experienced much longer delay than literate patients. This could be due to the fact that those with secondary and tertiary education might have better information about TB, and may likely seek care early.

The limitations of this study include recall bias, and perception of disease by the patients. However, only newly registered TB cases were included in our study, and the questionnaire were pretested.

5. Conclusion

Majority of TB patients in this study did not present early to health facilities. The positive predictors of delayed presentation for appropriate PTB treatment were first presentations at inappropriate treatment centers. There is need to intensify public health awareness among potential TB patients on the associated risks of treatment delay to prevent transmission. Collaboration between NTBLCP and unskilled health care providers should be intensified so that they could refer suspected PTB patients promptly to facilitate their treatment.

Acknowledgements

The authors would like to show appreciation to DOTS providers who participated in this study. We thank Oyiga Arinze, Thompson Nosgie, Ozogbo Stanley and Uche Chukwuemeka that collected the data for their commitment, and also study participants for their willingness to participate in the study.

Conflict of Interests

The authors declare that there is no conflict of interests regarding the publication of this paper.

Cite this paper

Omotowo Ishola Babatunde,Eke Christopher Bismark,Nwobi Emmanuel Amaechi,Eyisi Ifeanyi Gabriel,Agwu-Umahi Rebecca Olanike, (2015) Determinants of Treatment Delays among Pulmonary Tuberculosis Patients in Enugu Metropolis, South-East, Nigeria. Health,07,1506-1516. doi: 10.4236/health.2015.711164

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Abbreviations

UNTH: University of Nigeria Teaching Hospital

DOTS: Direct Observe Treatment Short Course

OR: Odds Ratio

CI: Confidence Interval

SPSS: Statistical Packages for Social Science

TB: Tuberculosis

MTB/RIF: Mycobacterium Tuberculosis/Rifampicin Resistant

HIV: Human Immunodeficiency Virus

NTBLCP: National Tuberculosis and Leprosy Control Programme

NOTES

*Corresponding author.

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