Prevalence of sexually transmitted infections among adolescents in Kampala, Uganda, and theoretical models for improving syndromic management

Prevalence and predictors of asymptomatic Chlamydia trachomatis and Neisseria gonorrhoeae in a Ugandan population most at risk of HIV transmission

The aim of this study was to establish the prevalence of asymptomatic Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) in key populations at increased risk of transmission of HIV. Additionally, we aimed to identify the associated risk factors for asymptomatic sexually transmitted infections (STIs) and evaluate the acceptability of self-collected samples. Asymptomatic people living with HIV (PLHIV) in the following categories were offered testing: discordant couples, young adults, pregnant patients and those attending the 'most-at-risk-population' clinic. Patients provided first-pass urine, self-collected vaginal swabs or both to test for NG and CT by polymerase chain reaction using BD ProbeTec™. Patients also completed an acceptability questionnaire, including the negative partner of an HIV-positive participant. Three hundred and sixty-three PLHIV had an STI screen. Asymptomatic STIs were only diagnosed in women (prevalence 5.7%), overall prevalence 3.9% (n = 14). Factors independently associated with an STI in women were being under 25 years (OR 9.63 95% CI 1.56-59.5) and having more than one sexual partner (OR 8.06 95% CI 1.07-60.6). Four hundred and seven completed the acceptability questionnaire. More than 95% of patients found self-sampling easy and comfortable and 83.8% would believe the results. Women significantly preferred the option of self-sampling, 56.9% versus 29.3% of men (p < 0.001). Acceptability of self-sampling was high. Young women with or at risk of HIV are an important target for STI testing regardless of symptoms. There is need for diagnostic tests that are inexpensive, rapid and accurate especially in resource-limited settings.

Impact of genital Chlamydia trachomatis infection on reproductive outcomes among infertile women undergoing tubal flushing: a retrospective cohort at a fertility centre in Uganda

BACKGROUND

The impact of current C. trachomatis on clinical pregnancy and live birth rates among women undergoing tubal flushing is largely unknown. This study aimed to investigate whether current female genital C. trachomatis infection affects the chance of achieving a clinical pregnancy and a live birth, among infertile women undergoing tubal flushing, at a fertility centre in Uganda.

METHODS

A retrospective Cohort study at a peri-urban fertility centre. A total of 253 eligible women with tubal factor infertility, who underwent tubal flushing, were enrolled and categorised according to their exposure to current genital C. trachomatis infection. These women were followed up for a period of 12 months, with the primary outcome measure being clinical pregnancy and live birth. Secondary outcome measures included pregnancy loss and procedural related adverse events.

RESULTS

Exposure to current genital C. trachomatis infection reduced chance of clinical pregnancy (adjusted relative risk 0.42; 95% confidence interval, 0.18-0.96) and a live birth (adjusted relative risk 0.37; 95% confidence interval, 0.14-0.95) after tubal flushing. Women with current C. trachomatis infection had an increased risk of adverse events (adjusted relative risk, 1.20; 95% confidence interval, 1.08-1.34). However, current C. trachomatis infection did not affect the risk of spontaneous abortion and ectopic pregnancy.

CONCLUSION

Current genital C. trachomatis infection in women with tubal factor infertility, undergoing tubal flushing, lowers their chance of pregnancy and live birth.

Study protocol: using a mobile phone-based application to increase awareness and uptake of sexual and reproductive health services among the youth in Uganda. A randomized controlled trial

BACKGROUND

Several cost-effective programs are being implemented around the world that use mobile technology to improve Sexual and Reproductive Health (SRH) uptake and awareness among youth. Mobile phone applications are a viable and effective means of increasing access to SRH services and tools in low and middle-income countries. This paper presents a protocol for a pilot study of a novel program, a mobile phone-based sexual and reproductive health services awareness and delivery application with the objective of increasing the demand for SRH services amongst the youth in Uganda.

METHODS

The study employs rigorous evaluation methods to ascertain the impact of the mobile application. We propose a randomized control trial study to determine the causal effect of the mobile phone app in creating awareness and increasing uptake of sexual and reproductive health services in Uganda. The main outcome of the impact evaluation is the percentage change in the SRH services and tools uptake, SRH knowledge and sexual behavior. We will also conduct a model-based incremental cost-effectiveness analysis (CEA) and budget impact analysis (BIA). The main outcomes of the economic evaluation will be the average cost per app user, cost per app service and tool provided. We will also test the in-app advertising model as a way to generate revenue to sustain the program subsidies and related costs.

DISCUSSION

The study seeks to establish the proof of concept of using a mobile application to increase create awareness and increase uptake of SRH tools and services among youth in Uganda. The study results will lead to the development of a demand-driven, culturally-relevant, and easy-to-use mobile app to enhance the uptake of SRH services among the youth in Uganda and globally.

TRIAL REGISTRATION

MUREC1/7 No. 07/05-18 . Registered 29th June 2018.

The prevalence of risky sexual behaviors among youth center reproductive health clinics users and non-users in Addis Ababa, Ethiopia: A comparative cross-sectional study

Background

Risky sexual behaviors adversely affect the health of youth and young adults exposing them to sexually transmitted infections including HIV/AIDS and unwanted pregnancy to females that in turn lead to deleterious health, social and economic consequences. Youth centers inform their clients on sexually transmitted diseases, including HIV/AIDS, unwanted pregnancy, high risk abortion, and other reproductive health problems. Therefore, this study was designed to assess the prevalence of risky sexual behaviors among youth center reproductive health clinic users and non-users in Addis Ababa.

Methods

A comparative cross-sectional study design was carried out among 524 youth in Addis Ababa from March to April, 2016. The data was entered in EPI-INFO 7 software; and cleaned and analyzed using SPSS version 16.0. The prevalence was computed. Binary and multivariable logistic regression was done to determine the strength, direction and significance of association between youth center reproductive health clinic utilization and risky sexual behavior and to control confounder variables respectively.

Results

A total of 524 youth with the response rate of 92% participated in the study. The overall prevalence of risky sexual behavior was 226 (43.1%) (With statistically significant difference in prevalence among users 101 (38.5%) and non-users 125 (47.7%) of youth center clinics, (p-value = 0.04). The odds of reporting risky sexual behavior was 60% higher among volunteers who did not use the reproductive health clinic, relative to those who did (AOR = 1.60; 95%CI = 1.08, 2.37). Teenagers aged 15–19 years were (AOR = 0.08; 95%CI = 0.05, 0.15) 92% less likely to practice risky sexual behavior compared to those aged 25–29 years old.

Conclusion

Risky sexual behavior was statistically significantly higher among non-users of the youth center reproductive health clinic compared with the users. In addition, a substantial proportion of the youth engaged in different risky sexual behaviors that are evidenced by the existence of multiple sexual partners, sexual practice without condom and early sexual debut that might predispose youth to STIs including HIV infection and unwanted pregnancy. The ministry of health and its partners should strengthen youth center reproductive health clinics in urban, semi-urban and rural parts of Ethiopia.

Genital Chlamydia trachomatis and Neisseria gonorrhoeae infections among women in sub-Saharan Africa: A structured review

Chlamydia trachomatis and Neisseria gonorrhoeae constitute major public health problems among women, but the burden of infection in sub-Saharan Africa is poorly documented. We conducted a structured review of the prevalence and incidence of genital, oral and anal C. trachomatis and N. gonorrhoeae infection in women in sub-Saharan Africa. We searched Medline, EMBASE and Web of Science over a 10-year period for studies on epidemiology of genital, oral and anal chlamydial infection and gonorrhoea in women in all countries of sub-Saharan Africa. We assessed geographic and demographic differences in prevalence and incidence of infection; weighted mean prevalence estimates were calculated with a random-effect model. A total of 102 study results were included, with data available for 24/49 of sub-Saharan countries. The weighted prevalence of chlamydial infection was lower among women in community-based studies (3.9%; 95% CI: 2.9-5.1%) than for women recruited at primary healthcare facilities (6.0%; 95% CI: 4.2-8.4%, p < 0.001); the same was observed for gonorrhoea (2.2%; 95% CI: 1.2-4.0% vs. 4.2%; 95% CI: 3.2-5.6%, p < 0.001). Prevalence of Chlamydia among sex workers was 5.5% (95% CI: 4.2-7.3%) and gonorrhoea 7.6% (95% CI: 5.4-11%). Seven studies reported on incidence which varied between 0.75-28 and 2.8-17 per 100 person-years-at-risk for chlamydial infection and gonorrhoea, respectively. Only two studies reported on anal infections and one on oral infection. This overview underscores the considerable incidence and prevalence of genital C. trachomatis and N. gonorrhoeae in women in different settings in sub-Saharan Africa. Better control strategies are warranted to reduce the burden of infection and to prevent long-term complications of these infections.

Screening for Sexually Transmitted Infections in Adolescent Girls and Young Women in Mombasa, Kenya: Feasibility, Prevalence, and Correlates

INTRODUCTION

As adolescents and young women become sexually active, they are at risk of adverse reproductive health outcomes including sexually transmitted infections (STIs). We assessed feasibility and acceptability of STI screening among 15- to 24-year-old women in Mombasa, Kenya.

METHODS

After sensitization activities, participants were recruited from 3 high schools and 1 university. Study staff conducted informational sessions. Students interested in participating were given consent forms to take home, and invited to visit our clinic for STI screening. During clinic visits, participants completed a self-administered questionnaire and provided a urine specimen for STI testing using a nucleic acid amplification test.

RESULTS

Between August 2014 and March 2015, 463 high school and 165 university students collected consent forms. Of these, 293 (63%) from high schools versus 158 (95%) from university attended clinic for STI screening (P < 0.001). Of the 150 (33%) who reported any history of insertive vaginal sex, 78 (52.0%) reported condom use at the last sex act, 31 (20.7%) reported using modern nonbarrier contraceptive methods, and 37 (24.7%) reported not using any contraception at the last sex act. Twenty-six (5.8%) participants were diagnosed with STIs (7 [1.6%] Neisseria gonorrhoeae, 16 [3.6%] Chlamydia trachomatis, 3 [0.7%] Trichomonas vaginalis). In multivariable analyses, reporting receptive vaginal sex without a condom was associated with having a laboratory confirmed STI (odds ratio, 6.21; 95% confidence interval, 1.72-22.28).

CONCLUSIONS

These findings support the need for reproductive health interventions to reduce the risk of STIs in a population of adolescent girls and young women in East Africa.

Parents' and teachers' views on sexual health education and screening for sexually transmitted infections among in-school adolescent girls in Kenya: a qualitative study

Background

To successfully develop and implement school-based sexual health interventions for adolescent girls, such as screening for Chlamydia trachomatis, Neisseria gonorrhoeae, and Trichomonas vaginalis, it is important to understand parents’ and teachers’ attitudes towards sexual health education and acceptability of sexually transmitted infection (STI) screening interventions.

Methods

In this qualitative study, we approached parents and teachers from three high schools to participate in in-depth interviews (IDIs) and focus-group discussions (FGDs). Parents and teachers were asked about their general knowledge of STIs and sexual health education. In addition, they were asked whether they would support utilizing outreach to schools to facilitate provision of sexual health education and screening for STIs in adolescent girls. Data were audio-recorded, transcribed, and translated into English. An initial coding matrix was developed and refined throughout the coding process. Transcripts were coded by two researchers and analyzed using the content analysis approach.

Results

We conducted 10 IDIs (5 parents and 5 teachers) and 4 FGDs (2 with parents, 2 with teachers, total of 26 participants). Most parents reported few or no discussions regarding STIs with their adolescent girls. Parents were more comfortable discussing consequences of sexual activity including loss of virginity and the potential for pregnancy. Parents tended to place responsibility for sexual health education with teachers. The teachers, in turn, provided basic sexual and reproductive health education including puberty, abstinence, and overview of STIs. Both parents and teachers found the idea of screening for STIs in adolescent girls to be acceptable, and were comfortable with research staff contacting girls through informational meetings at schools. Parents felt that adolescents’ STI screening results should be shared with their parents.

Conclusion

In this African setting, parents and teachers provide limited sexual health education, with a focus on negative consequences including loss of virginity, pregnancy, and risk for STIs. Nonetheless, both parents and teachers were supportive of STI screening for adolescent girls, beginning with school-based informational meetings for the girls. Research and programs that aim to provide STI screening in this setting must offer treatment and address the issue of whether results will be disclosed to parents.

Very low sensitivity of wet mount microscopy compared to PCR against culture in the diagnosis of vaginal trichomoniasis in Uganda: a cross sectional study

BACKGROUND

Trichomonas vaginalis (TV) causes the Trichomoniasis Syndrome composed of vaginitis in women, urethritis in men and tube infection in both sexes. This infection is strongly associated with premature rupture of membranes, preterm delivery, low birth weight, promoting HIV sexual transmission and infertility. Prevention of these complications requires accurate early detection and effective treatment of infected individuals. In the resource limited settings, the wet mount microscopy (WMM) is often the only available test for laboratory detection of TV, but its accuracy and that of polymerase chain reaction (PCR) tools in Uganda remain poorly studied. The aim of this cross-sectional study was to compare the diagnostic accuracy of the WMM and PCR against culture as reference standard for the direct diagnosis of TV among symptomatic women. Three high vaginal swabs were collected from each of one hundred fifty women presenting with symptoms suggestive of active vaginal trichomoniasis at the sexually transmitted diseases clinic of Mulago National Referral Hospital Kampala, Uganda. The swabs were tested for TV with WMM, in-house PCR and TV culture. Results were analysed using excel 2007, SPSS v16, and Meta-disc software to determine the diagnostic accuracy of the tests.

RESULTS

The sensitivity, specificity and kappa agreement of the WMM was 25% (95% CI 5.5-57.2%), 100% (95% CI 97-100) and 0.38, respectively. Corresponding values for the PCR were 91.7% (95% CI 61.5-99.8), 99.3% (95% CI 96-100) and 0.91, respectively.

CONCLUSION

Among the TV symptomatic women, the sensitivity of the WMM was very low, with two-thirds of the patients missing a diagnosis while the in-house PCR was highly sensitive and specific. Feasibility studies aimed at incorporating PCR tools in algorithms for diagnosis of TV infection in resource-limited settings are recommended.

The effectiveness of an adolescent reproductive health education intervention in Uganda

Ugandan adolescents lack sufficient reproductive health knowledge, which accounts in part for the staggering rates of teen pregnancies and sexually transmitted (STI) infections in this population. This study aimed to (1) examine Ugandan adolescents' baseline STI and contraceptive knowledge; (2) determine whether this knowledge varies by demographic factors, prior sexual experience or school grade; and (3) evaluate the effectiveness of an educational program to increase and retain STI and contraceptive knowledge among Ugandan adolescents. This study surveyed 129 adolescents (ages 15-19) regarding knowledge of STIs and contraceptive methods at schools and community non-governmental organizations at three time points. Findings demonstrated that at baseline the mean test scores for contraceptive knowledge and STI knowledge were 44% and 72%, respectively. Participants in higher secondary school grade-levels had greater odds of having prior STI knowledge (OR=19.6, 95% CI 2.0-187.6); participants who had previously engaged in sex had greater odds of having prior contraceptive knowledge (OR=4.62, 95% CI 1.45-14.72). A higher grade level was not associated with better knowledge of contraception; and being sexually active was not associated with better knowledge of STI information. Participants' knowledge of STIs and contraceptives improved after the education session (p<0.001), and knowledge was retained 3-weeks later (p<0.001). Findings suggest that Ugandan adolescents do not have adequate education regarding contraceptive methods and that implementation of reproductive health modules by an outside party can be effective in improving knowledge.

The Performance of the Vaginal Discharge Syndromic Management in Treating Vaginal and Cervical Infection: A Systematic Review and Meta-Analysis

Background

This review aimed to synthesize and analyze the diagnostic accuracy and the likelihood of providing correct treatment of the syndromic approach Vaginal Discharge Flowchart in managing cervical infections caused by Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT), and vaginal infections caused by Trichomonas vaginalis (TV) and Bacterial vaginosis (BV) and Candida albicans. This review will inform updating the WHO 2003 guidelines on Vaginal Discharge syndromic case management.

Methods

A systematic review was conducted on published studies from 01-01-2000 to 30-03-2015 in multiple databases. Studies evaluating the diagnostic accuracy and validation of the WHO Vaginal Discharge Flowchart were included. Validation parameters including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) and the 95% confidence intervals for the different types of the flowchart were taken as outcomes, re-calculated, and analysed using a fixed model meta-analysis for data pooling. The level of agreement between the index and reference test were determined by the Cohen’s Kappa co-efficiency test. Each individual study was assessed on quality using the QUADAS-2 tool.

Findings

The search yielded 2,845 studies of which 16 met the eligibility criteria for final analysis. The diagnostic performance to identify cervical infections was low and resulted in a high proportion of over and missed treatment. The four flowcharts had a sensitivity between 27.37% in history and risk assessment and 90.13% with microscopy, with the inverse in specificity rates. The treatment performances between the flowcharts were inconsistent. The same applies to the use of vaginal discharge flowchart for treating vaginal infections. For vaginal infections the vaginal discharge flowchart had a good performance in flowchart 3 with 91.68% of sensitivity; 99.97% specificity; 99.93% PPV and 0.02% who missed their treatment and 8.32% of women who were over treated by the vaginal discharge flowchart

Conclusion

The vaginal discharge flowchart should focus on management of vaginal infection. It could be used as an intermediate approach for cervical infections for sex workers until a point of care test is available in resource poor settings.

Prevalence and health care seeking behaviour for sexually transmitted infections among in-school adolescents in Ado-Ekiti, South-Western Nigeria

BACKGROUND

In Nigeria, adolescents are highly vulnerable to sexually transmitted infections (STIs) which have the potential of jeopardising their future reproductive lives if poorly treated.

OBJECTIVE

To determine the prevalence and health care seeking behaviour for STIs among secondary school adolescents in Ado, South-Western Nigeria.

SUBJECTS

Male and female adolescents aged 10-19 years.

METHODS

The study employed a descriptive cross-sectional design. A pre-tested, self-administered, semi-structured questionnaire was used to elicit information from 560 adolescents selected from public and private secondary schools in Ado Local Government Area (LGA) of Ekiti State, using a multistage sampling technique. The data were analyzed using descriptive and inferential statistics. Analyzed data were presented in the form of tables and charts.

RESULTS

Two hundred and fifty-one (47.1%) respondents had previous symptoms of STIs. The commonest symptoms among the males were penile discharge (30.5%), painful micturition (30.5%) and stomach pain with swollen testes (25.4%). The commonest symptoms among the females were genital itching (27.6%), genital sores (14.1%) and painful micturition (13.1%). Only 26.7% sought treatment from a health facility; 37.0% did nothing; 15.9% went to patent medicine stores, 10.0% used herbs; the rest did self-medication or prayed.

CONCLUSION

The prevalence of STI symptoms among adolescents in Ado-Ekiti is high but their health care seeking behaviour is poor. Health education about the dangers of untreated STI and the importance of seeking treatment early, targeted at adolescents, should be intensified.

Knowledge and practices related to sexually transmitted infections among women of reproductive age living in Katanga slum, Kampala, Uganda

BACKGROUND

Sexually transmitted infections (STIs) still stand as one of the commonest health problems affecting women of reproductive age. The knowledge and practices of STIs, among susceptible populations such as women of reproductive age, living in slums like Katanga in Kampala Uganda need to be established.

METHODS

This was a cross-sectional study with 339 participants in Katanga slum. Data was collected using an interviewer administered questionnaire, entered and analysed using SPSS version 17.0. Data was summarized using frequencies for categorical data and medians for continuous data.

RESULTS

Majority of the participants (71.9%) were ≥25years with a mean age of 28.0(SD ±7.0) years. The commonest symptoms known to the participants were genital itching (60%) and genital rash (14.5%). Most mentioned multiple partners (63.7%) and unprotected sex (50.7%) as predisposing factors to STIs. Knowledge on methods of prevention was high (92.3%) however, 18.8% were found positive for STIs using the syndromic approach and 82% mentioned having suffered from STIs in the past 6 months more than once.

CONCLUSION

Most participants did not know about the systemic effects of STIs to their health and didnot follow the appropriate behavior patterns despite being knowledgeable about the various methods of prevention of STIs.

The perspectives of in-school youths in Kampala, Uganda, on the role of parents in HIV prevention

This qualitative study explores how young Ugandans perceive and experience the role of parents in preventing the spread of HIV among youths. Data were gathered from semi-structured face-to-face interviews with 16 in-school youths, ages 18-20, residing in Kampala. A key finding is that the youths perceived parenting styles as influencing HIV prevention among youths. The participants identified several harmful consequences from a lack of parental guidance or inadequate parenting and they discussed the gains of parental support in terms of assisting HIV prevention among youths. The participants expressed the idea that parents can importantly contribute to preventing the spread of HIV among youths by supporting their own adolescent children and discussing topics like sex, relationships, and HIV in an age-appropriate way. However, the participants also felt that Ugandan parents in general are unable to support and talk to youths about sex and HIV in a way that helps protect them from exposure to HIV. The in-school youths felt that parents are unsupportive in terms of HIV prevention among youths by way of fear of talking about sex, parents' lack of time to engage with their children, and authoritarian or indulgent parenting. The participants also described how parents treat girls and boys differently; however, no significant association was found between how girls and boys conceptualised parents' roles.

Prevalence and factors associated with sexually transmitted infections among HIV positive women opting for intrauterine contraception

Background

Women living with HIV/AIDS (WLHA) are a high risk group for sexually transmitted infections (STIs). However, the majority of women with STIs are asymptomatic. Data on prevalence of STIs among WLHA in Uganda are limited. The objective of the study was to determine prevalence and factors associated with STIs among WLHA opting for intrauterine contraceptive device (IUD).

Methods

Three hundred fifty one WLHA deemed free of STIs using a syndromic logarithm were enrolled into the study. Endo-cervical swabs were taken before IUD insertion and PCR test for Nisseria gonorrhea (NG), Trichomonas vaginalis (TV) and Chlamydia trachomatis (CT) infections conducted.

Results

Participants’ mean age was 29.4 ± 6.2 years, 83% were under 35years, 50% had secondary education and 73% were married. The majority (69%) had disclosed their HIV sero status to their spouses, 82% used Cotrimoxazole prophylaxis, 70% were on antiretroviral therapy, 90% had CD4 count greater than 350, about 60% reported condoms use and 70% were of parity 2-4. Over 50% of the participants’ spouses were older than 35 years and 72% had attained secondary education. STIs prevalence was 11.1%, (95% CI 7.8-14.4) and individual prevalence for TV, NG, and CT was 5.9%, 5.4% and 0.9% respectively. Factors independently associated with STI were having primary or less education (OR= 2.3, 95% CI: 1.09 - 4.85) having a spouse of primary or less education (OR= 3.3, 95% CI: 1.6 - 6.78) and muslim faith (OR= 0.2, 95% CI: 0.04 - 0.78).

Conclusion

STI prevalence was 11.1%. TV and NG were the commonest STIs in this population. Having primary or less education for both participant and spouse was associated with increased risk while being of muslim faith was associated with reduced risk of STI.

Assessment of risky sexual behaviors and risk perception among youths in western Ethiopia: the influences of family and peers: a comparative cross-sectional study

BACKGROUND

Ethiopia is a developing country with a demographic profile dominated by young population with in the ages of 15-24, constituting one third of the total population. Only little has been explored about the role of parenting process and peers in protecting youths from risky sexual behaviors. Thus, this study tried to assess risky sexual behaviors, risk perception and the influences of family and peers for possible interventions among youths in western Ethiopia.

METHODS

The study applied a comparative cross-sectional design triangulated with qualitative study. A pre-tested, structured, interviewer administered questionnaire was used to gather data. SPSS software version 20 was used to perform descriptive statistics, univariate, bivariate and multivariable logistic regression analyses.

RESULTS

Over one third of in-school and 41.4% out-of-school youths reported unprotected sex during the 12 months period prior to interview. More than one third of in-school youths (37.1%) reported to have two and more than two lifetime sexual partners compared to 32.6% of out-of-school youths. Out-of-school youths feel that they are at higher risk of getting HIV than in-school youths (AOR = 2.93; 95% CI: 1.45, 4.35). Youths who had high family connectedness were less likely to commence sexual activity and have multiple sexual partners than their counterparts (AOR = 1.98; 95% CI: 0.63, 0.94) and (AOR = 2.79; 95% CI: 1.24, 4.43) respectively. Having pressure from peer to have sex was significantly associated with having multiple sexual partners (AOR = 2.82; 95% CI: 1.62, 2.49).

CONCLUSION

A substantial proportion of out-of-school youths engaged in risky sexual behaviors than in-school youths. Parents and peers play a role in shaping the behavior of youths. Consequently, the dimension of good parental process and positive peer factors has to be strengthened.

Incidence and correlates of Chlamydia trachomatis infection in a high-risk cohort of Kenyan women

BACKGROUND

In Africa, data on Chlamydia trachomatis infection are scarce because reliable diagnosis is costly and not widely available. Our objective was to evaluate the incidence and correlates of C. trachomatis infection among high-risk Kenyan women.

METHODS

We conducted prospective cohort analyses using data from a cohort of women who reported transactional sex. C. trachomatis testing was performed using the Gen-Probe Aptima GC/CT Detection System. We used Andersen-Gill proportional hazards modeling to evaluate correlates of C. trachomatis.

RESULTS

Between August 2006 and December 2010, 865 women contributed 2011 person-years of observation. Sixty-four women experienced 101 episodes of C. trachomatis infection (incidence rate, 5.0/100 person-years). There was a large difference in incidence by age group: those younger than 25 years had an incidence of 27.6 per 100 person-years (95% confidence interval [CI], 16.3-46.5), those 25 to 34 years old had an incidence of 8.4 per 100 person-years (95% CI, 6.4-11.0), and those 35 years and older had an incidence of 2.6 per 100 person-years (95% CI, 1.8-3.6). In multivariate analyses, younger age (<25 and 25-34 years vs. ≥35 years; hazard ratio [HR], 8.5 [95% CI, 4.1-17.7] and 2.9 [95% CI, 1.7-5.0], respectively), depot medroxyprogesterone acetate use (HR, 1.8; 95% CI, 1.1-3.0), and recent Neisseria gonorrhoeae infection (HR, 3.3; 95% CI, 1.5-7.4) were significantly associated with increased risk of acquiring C. trachomatis infection.

CONCLUSIONS

The high incidence of C. trachomatis among younger high-risk women suggests the need for screening as an important public health intervention for this population.

A call for parental monitoring to improve condom use among secondary school students in Dar es Salaam, Tanzania

BACKGROUND

The number of people newly infected with human immunodeficiency virus (HIV) has been decreasing in sub-Saharan Africa, but prevalence of the infection remains unacceptably high among young people. Despite the alarming pervasiveness of the virus, young people in this region continue to engage in risky sexual behaviors including unprotected sexual intercourse. In developed countries, parents can play important roles in protecting young people from such behaviors, but evidence regarding the impact of parental involvement is still limited in sub-Saharan Africa. Therefore, we conducted this study to examine the magnitude of risky sexual behaviors and the association of parental monitoring and parental communication with condom use at last sexual intercourse among secondary school students in Dar es Salaam, Tanzania.

METHODS

We conducted this cross-sectional study among 2,217 male and female students aged 15 to 24 years from 12 secondary schools in Dar es Salaam. From October to November 2011, we collected data using a self-administered questionnaire. Multiple logistic regression analyses were conducted to examine the association of parental monitoring and parental communication with condom use at last sexual intercourse, adjusting for potential confounders.

RESULTS

A total of 665 (30.3%) secondary school students reported being sexually active within the year prior to data collection. Among them, 41.7% had multiple sexual partners, 10.5% had concurrent sexual partners, and 41.1% did not use a condom at last sexual intercourse. A higher level of parental monitoring was associated with increased likelihood of condom use at last sexual intercourse among male students (AOR: 1.56, 95% CI: 1.05-2.32; p = 0.03) but not among female students (AOR: 1.54, 95% CI: 0.71-3.37; p = 0.28). The association between parental communication and condom use at last sexual intercourse among both male and female students was not statistically significant.

CONCLUSIONS

A high level of parental monitoring is associated with more consistent condom use among male students in Dar es Salaam, Tanzania -- many of whom have engaged in high-risk sexual behaviors such as multiple sexual partnerships, concurrent sexual partnerships, and unprotected sexual intercourse in the past one year. Interventions should thus be strengthened to reduce multiple sexual partnerships, concurrent sexual partnerships, and to improve parental monitoring among such students toward increasing condom use.

Factors associated with repeat visits among clients attending a clinic for sexually transmitted infections in Kisumu, Kenya

To identify factors associated with repeat visits among patients attending a clinic for sexually transmitted infections (STIs) in Kisumu, Kenya, we examined records of clinic visits from March 2009 to May 2010. Multivariable logistic regression identified factors associated with repeat visits occurring >30 days after the initial visit. Among 1473 clients (1296 single-visit individuals versus 177 individuals with repeat visits), the median age was 24 years, 67% were men and 8.6% self-reported being HIV-positive. In adjusted analyses, men with repeat visits were more likely to report ≥ 2 recent sexual partners (adjusted odds ratio [aOR] = 1.60) and being HIV-positive (aOR = 2.35). They were less likely to have been referred from other health facilities (aOR = 0.14) and more likely to have urethral discharge at their initial visit (aOR = 2.46). Among women, repeat visits were associated with vaginal discharge (aOR = 2.22), but attending the clinic with a partner was protective (aOR = 0.38). The association between sexual risk, HIV positivity and repeat visits among male clients highlights the need to focus intervention efforts on this group. For women, attending with a partner may reflect a decreased risk of re-infection if both partners are treated and counselled together.

Urbanisation and infectious diseases in a globalised world

The world is becoming urban. The UN predicts that the world's urban population will almost double from 3·3 billion in 2007 to 6·3 billion in 2050. Most of this increase will be in developing countries. Exponential urban growth is having a profound effect on global health. Because of international travel and migration, cities are becoming important hubs for the transmission of infectious diseases, as shown by recent pandemics. Physicians in urban environments in developing and developed countries need to be aware of the changes in infectious diseases associated with urbanisation. Furthermore, health should be a major consideration in town planning to ensure urbanisation works to reduce the burden of infectious diseases in the future.

STI-prevalence and differences in social background and sexual behavior among urban and rural young women in Uganda

BACKGROUND

Adolescents in Uganda carry a heavy burden of reproductive health problems. Different environment creates different problems.

OBJECTIVES

To study the prevalence of STI and to compare social and behavioral risk factors for Neisseria gonorrhoea (NG) and Chlamydia trachomatis (CT) among sexually experienced young women in one urban and one rural area in Uganda.

METHODS

Consenting, sexually experienced women, below 20 years, visiting two different youth clinics were asked about social background, genital symptoms and sexual experiences. Vaginal samples were taken for NG and CT and analyzed by PCR.

RESULTS

The prevalence of NG and/or CT was 20 (6.8%) in the urban and 23 (7.8%) in the rural study site, a non-significant difference. The rural women were often in marital union, 25.3% compared to 12.2% of the urban women (OR 2.4, 95% CI 1.6-3.8) and had experienced more pregnancies and had more children. Their partners were often more than 10 years older. More urban women (42.2%) knew their HIV status compared to rural women (16.2%), OR 2.1 (1.6-2.7), reported more condom use and more sexual partners.

CONCLUSIONS

Marital status and few sexual partners does not appear to protect young rural women from sexually transmitted infections (STIs), implying that male sexual behavior may have an important impact on women's risk to be infected.

Lack of utility of risk score and gynecological examination for screening for sexually transmitted infections in sexually active adolescents

BACKGROUND

Sexually transmitted infections constitute the main health risk among adolescents. In developing countries the diagnosis and treatment of cervical infections is based on the syndromic approach. In this study we estimated the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae among female adolescents from a Health Sector of the city of Goiânia, Brazil, and validated cervicitis diagnosis using World Health Organization/Ministry of Health risk score and gynecological examination.

METHODS

A cross-sectional community-based sample of 914 15- to 19-year-old female teenagers was randomly selected and referred to the local Family Health Program. Of these, 472 (51.6%) were sexually active and gynecological examinations were carried out for 427. Endocervical samples were collected to perform the polymerase chain reaction for C. trachomatis and N. gonorrhoeae. Performance of risk score, the presence of mucopurulent discharge, friability, ectopia and pain during cervical maneuver were compared with the presence of C. trachomatis or N. gonorrhoeae or both.

RESULTS

The prevalence of C. trachomatis and N. gonorrhoeae was 14.5% and 2.1%, respectively. The risk score had a specificity of 31.9% (95% confidence interval, 21.2 to 44.2) and a positive predictive value of 20.8% (95% confidence interval, 13.5 to 29.7). Friability was the component of the gynecological examination that presented the best performance with a sensitivity of 43.5%, specificity of 81.0%, and 30.6% of positive predictive value.

CONCLUSION

The prevalence of infection by C. trachomatis and N. gonorrhoeae was high among these sexually active adolescents. The syndromic approach is clearly inadequate for screening and treating these infections in this population. Therefore, the implantation of other strategies to control these infections among adolescents is urgently required.

Access to and utilisation of health services for the poor in Uganda: a systematic review of available evidence

Inequalities in the burden of disease and access to health care is a prominent concern in Uganda and other sub-Saharan African countries. This is a systematic review of socio-economic differences in morbidity and access to health care in Uganda. It includes published studies from electronic databases and official reports from surveys done by government, bilateral and multilateral agencies and universities. The outcome measures studied were: the distribution of HIV/AIDS; maternal and child morbidity; and access to and utilisation of health services for people belonging to different socio-economic and vulnerability groups. Forty-eight of 678 identified studies met our inclusion criteria. Results indicate that the poor and vulnerable experience a greater burden of disease but have lower access to health services than the less poor. Barriers to access arise from both the service providers and the consumers. Distance to service points, perceived quality of care and availability of drugs are key determinants of utilisation. Other barriers are perceived lack of skilled staff in public facilities, late referrals, health worker attitude, costs of care and lack of knowledge. Longitudinal and controlled studies are needed to see if strategies to improve access to services reach the poor.

Global epidemiology and control of Trichomonas vaginalis

PURPOSE OF REVIEW

Trichomonas vaginalis is the most common curable sexually transmitted infection. Despite a number of serious health consequences including facilitation of HIV transmission, pelvic inflammatory disease and adverse outcomes of pregnancy it remains an under-recognized condition. This review aims to update the reader on the global epidemiology and control of T. vaginalis.

RECENT FINDINGS

The burden of T. vaginalis infection is found in resource-limited settings and high-risk groups in industrialized settings. Utilization of polymerase chain reaction-based diagnostics has enhanced our understanding of the epidemiology of T. vaginalis both at the population level and in sexual partners. High rates of asymptomatic infection in male partners of infected females and subsequent re-infection have significant implications for control programmes. Further studies investigating the role of T. vaginalis in facilitating HIV transmission has highlighted its significance and the need to develop and implement control interventions.

SUMMARY

Future research to develop cheap, point-of-care diagnostic tests will allow a greater understanding of T. vaginalis epidemiology. In addition, the effect of treatment on outcome of pregnancy and HIV acquisition requires further study. This will in turn facilitate operational studies evaluating optimal control strategies and their impact on the complications of T. vaginalis.