An evaluation of infant immunization in Africa: is a transformation in progress?

OBJECTIVE: To assess the progress made towards meeting the goals of the African Regional Strategic Plan of the Expanded Programme on Immunization between 2001 and 2005. METHODS: We reviewed data from national infant immunization programmes in the 46 countries of WHOs African Region, reviewed the literature and analysed existing data sources. We carried out face-to-face and telephone interviews with relevant staff members at regional and subregional levels. FINDINGS: The African Region fell short of the target for 80% of countries to achieve at least 80% immunization coverage by 2005. However, diphtheria-tetanus-pertussis-3 coverage increased by 15%, from 54% in 2000 to 69% in 2004. As a result, we estimate that the number of nonimmunized children declined from 1.4 million in 2002 to 900,000 in 2004. In 2004, four of seven countries with endemic or re-established wild polio virus had coverage of 50% or less, and some neighbouring countries at high risk of importation did not meet the 80% vaccination target. Reported measles cases dropped from 520,000 in 2000 to 316,000 in 2005, and mortality was reduced by approximately 60% when compared to 1999 baseline levels. A network of measles and yellow fever laboratories had been established in 29 countries by July 2005. CONCLUSION: Rates of immunization coverage are improving dramatically in the WHO African Region. The huge increases in spending on immunization and the related improvements in programme performance are linked predominantly to increases in donor funding.     

Are health services protecting the livelihoods the urban poor in Sri Lanka? Findings from two low-income areas of Colombo

Investing in pro-poor health services is central to poverty reduction and achievement of the Millennium Development Goals. As health care financing mechanisms have an important influence over access and treatment costs they are central to the debates over health systems and their impact on poverty. This paper examines people's utilisation of health care services and illness cost burdens in a setting of free public provision, Sri Lanka. It assesses whether and how free health care protected poor and vulnerable households from illness costs and illness-induced impoverishment, using data from a cross-sectional survey (423 households) and longitudinal case study household research (16 households). The findings inform policy debates about how to improve protection levels, including the contribution of free health care services to poverty reduction. Assessment of policy options that can improve health system performance must start from a better understanding of the demand-side influences over performance.     

Can air pollution affect tear film stability? a cross-sectional study in the aftermath of an explosion accident

Background  

After an explosion and fire in two tanks containing contaminated oil and sulphur products in a Norwegian industrial harbour in 2007, the surrounding area was polluted. This caused an intense smell, lasting until the waste was removed two years later. The present study reports examinations of tear film break up time among the population. The examinations were carried out because many of the people in the area complained of sore eyes. The purpose of the study was to assess the relationship between living or working close to the polluted area and tear film stability one and a half years after the explosion.     

A non-randomized vaccine effectiveness trial of accelerated infant hepatitis B immunization schedules with a first dose at birth or age 6 weeks in Côte d'Ivoire

Most African countries do not initiate hepatitis B vaccination at birth. We conducted a non-randomized controlled trial comparing hepatitis B vaccination given at age 0, 6, and 14 weeks versus the current Côte d’Ivoire schedule of 6, 10, and 14 weeks. Pregnant women were enrolled at four health centers in Abidjan. At age 9 months, 0.5% of infants in both the birth and 6-week cohorts were positive for HBsAg and all were born to HBeAg-positive women. Among infants of HBeAg-positive mothers, 9 of 24 (37.5%) in the birth cohort and 10 of 17 (58.8%) in the 6-week cohort were HBsAg positive (adjusted OR, 2.7; 95% CI: 0.7–11.0). While both vaccine schedules prevented most cases of infant HBV transmission, both also had high failure rates among infants of HBeAg-positive mothers. African infants may benefit from a birth dose but additional studies are needed to verify this hypothesis.     

Feeding practices of babies and the development of atopic dermatitis in children after 12 months of age in Armenia: Is there a signal?

We investigated the influence of feeding practices on development of atopic dermatitis (AD) in Armenian children (n = 240). In multivariate models early introduction to solids, family history of atopy, and breastfeeding by a mother with atopic condition were associated with the development of AD after 12 months post-term. A prospective study in Armenia is recommended to confirm our findings.     

Physician workload in primary care: what is the optimal size of practices? A cross-sectional study

OBJECTIVE: To determine the impact of practice size and scope of services on average physician workload in primary care practices in The Netherlands, and to examine the associations between average physician workload, average assistant volume and organisational practice characteristics. METHODS: This was a cross-sectional study in 1188 general practices in The Netherlands. Measures included physician workload per week per 1000 patients, assistant volume per 1000 patients, practice size defined by number of registered patients (10 classes), scope of disease management services (seven classes), and nine organisational characteristics of the practice. RESULTS: Physician workload per 1000 patients differed across levels of practice size, but was not related with the range of disease management services provided. In the smallest practices physicians worked on average 26.2h per 1000 patients and in the largest practices 18.1h. A higher average assistant volume was overall not associated with a lower average physician workload. Large practices had lower assistant volume per 1000 patients, but provided a wider range of disease management services compared to small practices. Delegation of medical tasks was associated with reduced physician workload per 1000 patients, mainly in smaller practices, and with higher assistant volume per 1000 patients, particularly in larger practices. CONCLUSIONS: In The Netherlands the optimum regarding average physician workload was found in the largest practices, while no obvious association with scope of disease management services appeared. It may be that in large practices medical tasks were delegated to practice assistants to provide a wider scope of disease management services and in small practice to reduce average physician workload.     

Added value of the measles-rubella supplementary immunization activity in reaching unvaccinated and under-vaccinated children,a cross-sectional study in five Indian districts, 2018–20

IntroductionSupplementary immunization activities (SIAs) aim to interrupt measles transmission by reaching susceptible children, including children who have not received the recommended two routine doses of MCV before the SIA. However, both strategies may miss the same children if vaccine doses are highly correlated. How well SIAs reach children missed by routine immunization is a key metric in assessing the added value of SIAs.MethodsChildren aged 9 months to younger than 5 years were enrolled in cross-sectional household serosurveys conducted in five districts in India following the 2017–2019 measles-rubella (MR) SIA. History of measles containing vaccine (MCV) through routine services or SIA was obtained from documents and verbal recall. Receipt of a first or second MCV dose during the SIA was categorized as “added value” of the SIA in reaching un- and under-vaccinated children.ResultsA total of 1,675 children were enrolled in these post-SIA surveys. The percentage of children receiving a 1st or 2nd dose through the SIA ranged from 12.8% in Thiruvananthapuram District to 48.6% in Dibrugarh District. Although the number of zero-dose children prior to the SIA was small in most sites, the proportion reached by the SIA ranged from 45.8% in Thiruvananthapuram District to 94.9% in Dibrugarh District. Fewer than 7% of children remained measles zero-dose after the MR SIA (range: 1.1–6.4%) compared to up to 28% before the SIA (range: 7.3–28.1%).DiscussionWe demonstrated the MR SIA provided considerable added value in terms of measles vaccination coverage, although there was variability across districts due to differences in routine and SIA coverage, and which children were reached by the SIA. Metrics evaluating the added value of an SIA can help to inform the design of vaccination strategies to better reach zero-dose or undervaccinated children.     

A novel measles outbreak control strategy in the Netherlands in 2013–2014 using a national electronic immunization register: A study of early MMR uptake and its determinants

BackgroundDuring a large measles outbreak in the Netherlands in 2013–2014, infants aged 6–14 months living in municipalities with low (<90%) measles-mumps-rubella (MMR) coverage were individually invited for an early MMR using the national electronic immunization register, Præventis. We estimated uptake of early MMR prior to and during the 2013–2014 outbreak and assessed determinants for early MMR vaccination.MethodsWe obtained vaccination records from Præventis, and defined early MMR as vaccination before 415 days (13 months) of age. A multi-level multivariable logistic regression model, restricted to infants with three diphtheria-pertussis-tetanus-polio (DPTP) vaccinations was used to examine the association between early MMR uptake and sex, parents’ country of birth, socioeconomic status (SES; at postcode level) and voting proportions for the Reformed Political Party (SGP; at municipal level), used as a proxy for religious objections towards vaccination.ResultsIn the 29 municipalities with low MMR coverage, uptake of early MMR was 0.5–2.2% prior to the outbreak. Between July 2013 and March 2014, 5,800 (57%) invited infants received an early MMR. Among infants with three DPTP, 70% received an early MMR. Only 1% of infants without prior DPTP received an early MMR. Lower early MMR uptake was associated with a higher SGP voter-ship (OR 0.89 per 5% increase, 95%CI 0.83–0.96), parents’ with unknown country of birth (OR 0.66 95%CI 0.47–0.93) and compared with very high SES, high SES had significantly lower early MMR uptake (OR 0.66 95%CI 0.50–0.87).DiscussionThis is the first study describing use of Præventis during an outbreak and to assess determinants of early MMR uptake. More than half of invited infants obtained an early MMR. SES, parents’ with unknown country of birth and religious objections towards vaccination were found to be associated with lower early MMR uptake. In future outbreaks, these determinants could be used to tailor intervention strategies.     

Sex differences in the association between infant feeding and blood cholesterol in later life: the Newcastle thousand families cohort study at age 49–51 years

Previous studies have suggested an association between being breastfed and later cholesterol levels. We investigated whether duration of total and exclusive breastfeeding were related to circulating total, HDL and LDL cholesterol and triglyceride measures at age 50, and whether such associations differ between men and women. Members of the Newcastle thousand families study were followed from birth in 1947. Men (n = 179) and 226 women (n = 226) with blood cholesterol and triglyceride measures at age 50 and with prospectively recorded duration of both total and exclusive breastfeeding were included. Neither total duration nor duration of exclusive breastfeeding were associated with the outcome measures when analysing both sexes together. However, in sex specific analyses significant associations between duration of exclusive breastfeeding and both total and LDL cholesterol (adjusted regression coefficient (r) per 30 days = 0.12 mmol/l (95% CI 0.04–0.20) P = 0.004 for total cholesterol and adjusted r per 30 days = 0.10 mmol/l (95% CI 0.02–0.18) P = 0.016 for LDL cholesterol) were seen for women with no significant associations observed in men. Significant interactions between duration of exclusive breastfeeding and sex were seen for total and LDL cholesterol (P = 0.02 and P = 0.03, respectively) with a near-significant interaction for HDL cholesterol (P = 0.06). In all cases, greater increases in cholesterol with increasing duration of exclusive breastfeeding were seen for women than for men. In conclusion, the association between breastfeeding and adult cholesterol levels differs between men and women and in women remains a significant association even after adjustment for potential confounders. However, our findings may not reflect the situation in younger generations.     

Characteristics of patients co-infected with HIV at the time of inpatient tuberculosis treatment initiation in Yaoundé, Cameroon: a tertiary care hospital-based cross-sectional study

Background

Knowledge of the characteristics of patients co-infected with tuberculosis (TB) and human immunodeficiency virus (HIV) when TB treatment is initiated would allow clinicians to improve care and help policy-makers develop relevant and realistic guidelines. The aim of this study was to describe socio-demographic, clinical, and laboratory characteristics of TB/HIV co-infected patients starting inpatient TB treatment in Yaoundé, Cameroon.

Methods

We conducted a retrospective cross-sectional study, collecting data from medical records of HIV-infected patients with TB, aged 15 years old or more, hospitalized in the Infectious Diseases Unit of the Yaoundé Central Hospital, Cameroon from January 1, 2006 to June 30, 2013.

Results

The mean age of 337 patients meeting study inclusion criteria was 39.3 years. More than half were female (53.4%). Most (89.3%) resided in urban areas, 44.2% had a secondary education, and 46.0% were married. The majority was receiving co-trimoxazole prophylaxis (79.5%), and two thirds were taking antiretroviral therapy (67.4%). The mean duration of known HIV infection before TB treatment was 8.4 months. Most (88.1%) had newly diagnosed TB, rather than relapsed disease. Smear-positive pulmonary TB was documented in a third, (35.3%). Laboratory data revealed a median white blood cell count of 5,100 cells/mm³ (IQR 3,300-7,990 cells/mm³), a median hemoglobin level of 8 g/dl (IQR 7–10 g/dl), and a median CD4 cell count of 102 cells/mm³ (IQR 33–178 cells/mm³). Sex differences in our study included older age in the men (p < 0.001), more of whom were married (p < 0.001) and had achieved a higher level of education (p = 0.042). Men had fewer diagnoses of smear-positive pulmonary TB (p = 0.020). They weighed more than the women (p = 0.001) and had higher hemoglobin levels (p = 0.003).

Conclusions

Suboptimal adherence to WHO treatment recommendations in our Cameroonian study reinforces the importance of prescribing co-trimoxazole in HIV infection and ART for all TB/HIV co-infected persons. We urge that Ministries of Health continue implementing and disseminating guidelines for management of TB/HIV co-infected patients, and we call for measures ensuring that healthcare facilities’ stocks of ART and co-trimoxazole are sufficient to meet the need for both.     

Food patterns and components of the metabolic syndrome in men and women: a cross-sectional study within the Malm? Diet and Cancer cohort.

This study examined the relations between food patterns and five components of the metabolic syndrome in a sample of Swedish men (n = 2,040) and women (n = 2,959) aged 45-68 years who joined the Malm? Diet and Cancer study from November 1991 to February 1994. Baseline examinations included an interview-administered diet history, a self-administered questionnaire, blood pressure and anthropologic measurements, and blood samples donated after an overnight fast. Cluster analysis identified six food patterns for which 43 food group variables were used. Logistic regression analysis was used to examine the risk of each component (hyperinsulinemia, hyperglycemia, hypertension, dyslipidemia, and central obesity) and food patterns, controlling for potential confounders. The study demonstrated relations, independent of specific nutrients, between food patterns and hyperglycemia and central obesity in men and hyperinsulinemia in women. Food patterns dominated by fiber bread provided favorable effects, while food patterns high in refined bread or in cheese, cake, and alcoholic beverages contributed adverse effects. In women, food patterns dominated by milk-fat-based spread showed protective relations with hyperinsulinemia. Relations between risk factors and food patterns may partly depend on gender differences in metabolism or food consumption and on variations in confounders across food patterns.     

Measurement of vaccination coverage at age 24 and 19–35 months: a case study of multiple imputation in public health

Aim  

Childhood immunization coverage in the United States (U.S.) is often measured at age 24 months or, in the National Immunization Survey (NIS) at age of interview, which is between 19 and 35 months. This paper compares these standards.     

Are there racial differences in attitudes toward hospice care? A study of hospice-eligible patients at the Visiting Nurse Service of New York

Research on African American and white attitudes, perceptions, and knowledge of hospice care has focused predominantly on patients and providers in institutions and community-based care settings. Little is known about patients receiving home health services, despite growing trends toward noninstitutional care in the United States. This study of home health clients who are eligible for hospice, but not currently receiving it, found few differences between racial groups with regard to attitudes about end-of-life care. An alarming proportion of African American and white home health clients held erroneous ideas about hospice care and had not discussed this option with their providers. These findings suggest that increased referrals to home-based hospice care among home health clients depend on the availability and professional dissemination of accurate, spiritually sensitive information.     

Sooner or later? Issues in the early diagnosis of dementia in general practice: a qualitative study

OBJECTIVE: The aim of this study was to explore the perspectives of primary care practitioners on the early diagnosis of dementia. METHODS: A total of 247 GPs, 146 community nurses, 36 practice nurses, 79 community mental health nurses and others working in a range of hospital, residential and community settings attended 24 one-day workshops in 21 cities and towns in the UK. A nominal group approach was used relating to the early diagnosis of dementia in the community. RESULTS: Groups agreed on the benefits and risks of early diagnosis of dementia; disagreed about screening for dementia, and about professional resistance to making the diagnosis; constructed comprehensive guidelines on diagnosis, but without much reference to resource implications; yet described actual local resource limitations in detail; and avoided dilemmas about dementia care by framing it as a specialist activity. CONCLUSION: Practitioners situate dementia in a family context but do not yet use a disablement model of dementia which might reduce tensions about early diagnosis and the disclosure of the diagnosis. The term diagnosis could usefully be replaced by recognition, to aid this shift in model. Service gaps may emerge or widen if earlier diagnosis of dementia is pursued as a policy objective.     

Does selective migration bias the health impact assessment of urban regeneration programmes in cross-sectional studies? Findings from a Dutch case study

We examined if the assessment of the health impact of a national Dutch regeneration programme depends on using either a repeated cross-sectional or longitudinal study design. This is important as only the latter design can incorporate migration patterns. For both designs, we compared trends in medication use between target and control districts. We found differences in medication use trends to be modest under the longitudinal design, and not demonstrable under the repeated cross-sectional design. The observed differences were hardly influenced by migration patterns. We conclude that in the Netherlands migration patterns had little effect on the health impact assessment of this national urban regeneration programme, so either the cross-sectional or longitudinal evaluation study design will do.