Gabriela de Almeida Lamarca

The Relationship between Periodontitis and Preterm Low Birthweight

There is no consensus about the influence of periodontal disease on preterm low birthweight. The objective was to investigate the relationship between periodontal disease and preterm low birthweight. A case-control study with 542 post partum women aged over 30 yrs was conducted. Three groups of cases were compared with non-preterm and non-low-birthweight control individuals (n = 393): low birthweight (n = 96), preterm (n = 110), and preterm and low birthweight (n = 63). Periodontal clinical parameters and covariates were recorded. Periodontal disease levels were higher in control individuals than in cases. The extent of periodontal disease did not increase risk of preterm low birthweight according to 15 measures of periodontal disease. Mean periodontal pocket depth and frequency of periodontal sites with clinical attachment level ≥ 3 mm in preterm low birthweight cases were lower than in control individuals. Periodontal disease was not more severe in women with preterm low birthweight babies.

The association of neighbourhood and individual social capital with consistent self-rated health: a longitudinal study in Brazilian pregnant and postpartum women

BackgroundSocial conditions, social relationships and neighbourhood environment, the components of social capital, are important determinants of health. The objective of this study was to investigate the association of neighbourhood and individual social capital with consistent self-rated health in women between the first trimester of pregnancy and six months postpartum.MethodsA multilevel cohort study in 34 neighbourhoods was performed on 685 Brazilian women recruited at antenatal units in two cities in the State of Rio de Janeiro, Brazil. Self-rated health (SRH) was assessed in the 1st trimester of pregnancy (baseline) and six months after childbirth (follow-up). The participants were divided into two groups: 1. Good SRH – good SRH at baseline and follow-up, and, 2. Poor SRH – poor SRH at baseline and follow-up. Exploratory variables collected at baseline included neighbourhood social capital (neighbourhood-level variable), individual social capital (social support and social networks), demographic and socioeconomic characteristics, health-related behaviours and self-reported diseases. A hierarchical binomial multilevel analysis was performed to test the association between neighbourhood and individual social capital and SRH, adjusted for covariates.ResultsThe Good SRH group reported higher scores of social support and social networks than the Poor SRH group. Although low neighbourhood social capital was associated with poor SRH in crude analysis, the association was not significant when individual socio-demographic variables were included in the model. In the final model, women reporting poor SRH both at baseline and follow-up had lower levels of social support (positive social interaction) [OR 0.82 (95% CI: 0.73-0.90)] and a lower likelihood of friendship social networks [OR 0.61 (95% CI: 0.37-0.99)] than the Good SRH group. The characteristics that remained associated with poor SRH were low level of schooling, Black and Brown ethnicity, more children, urinary infection and water plumbing outside the house.ConclusionsLow individual social capital during pregnancy, considered here as social support and social network, was independently associated with poor SRH in women whereas neighbourhood social capital did not affect women’s SRH during pregnancy and the months thereafter. From pregnancy and up to six months postpartum, the effect of individual social capital explained better the consistency of SRH over time than neighbourhood social capital.

Periodontal infection and adverse pregnancy outcomes: a systematic review of epidemiological studies

The objective of this systematic review was to evaluate analytical studies on periodontal disease as a possible risk factor for adverse pregnancy outcomes. A literature search of the MEDLINE, SciELO, and LILACS bibliographic databases and CAPES thesis database was conducted up to December 2005, covering epidemiological studies of periodontal disease and adverse pregnancy outcomes. Of the 964 papers identified, 36 analytical studies met the inclusion criteria. Twenty-six epidemiological studies reported associations between periodontal disease and adverse pregnancy outcomes. There was a clear heterogeneity between studies concerning measurement of periodontal disease and selection of type of adverse pregnancy outcome. Therefore no meta-analysis was performed. Most studies did not control for confounders, thus raising serious doubts about their conclusions. The methodological limitations of most studies did not allow conclusions concerning the effects of periodontal disease on adverse pregnancy outcomes. Larger and methodologically rigorous analytical studies using reliable outcomes and exposure measures are recommended.

Partial recording protocols for periodontal disease assessment in epidemiological surveys

The objective of the present study was to compare the reliability of four partial-mouth protocols for assessing shallow, moderate, and deep sites for periodontal pocket depth and clinical attachment levels. Periodontal pocket depth and clinical attachment level measurements were recorded for 156 subjects (age > or = 30). The four models of partial-mouth protocols compared were: Model I: all sites per tooth in the random half-mouth protocol randomly selecting one maxillary and mandibular quadrant, Model II: buccal sites in a full-mouth protocol, Model III: buccal sites in the random half-mouth protocol randomly selecting one maxillary and mandibular quadrant, Model IV: all sites per tooth using Community Periodontal Index teeth. In comparison with full mouth examination, Model I did not show significant differences for periodontal pocket depth and clinical attachment level parameters. Models II and III were different for some periodontal pocket depth means, and Model IV significantly overestimated all clinical parameters related to periodontal disease. Model I appears to be adequate to substitute for the full-mouth examination to assess the prevalence and severity of chronic periodontal disease in adults.

Housing conditions as a social determinant of low birthweight and preterm low birthweight

OBJECTIVE To assess the relationship between housing conditions and low birthweight and preterm low birthweight among low-income women. METHODS A case-control study was conducted with post-partum women living in the city of Rio de Janeiro, Southeast Brazil, in 2003-2005. Two groups of cases, low birthweight (n=96) and preterm low birthweight infants (n=68), were compared against normal weight term controls (n=393). Housing conditions were categorized into three levels: adequate, inadequate, and highly inadequate. Covariates included sociodemographic and anthropometric characteristics, risk behaviors, violence, anxiety, satisfaction during pregnancy, obstetric history and prenatal care. RESULTS Poor housing conditions was independently associated with low birthweight (inadequate--OR 2.3 [1.1;4.6]; highly inadequate--OR 7.6 [2.1;27.6]) and preterm low birthweight (inadequate--OR 2.2 [1.1;4.3]; highly inadequate--OR 7.6 [2.4;23.9]) and factors associated with outcomes were inadequate prenatal care and previous preterm birth. Low income and low maternal body mass index remained associated with low birthweight. CONCLUSIONS Poor housing conditions were associated with low birthweight and preterm low birthweight.OBJETIVO: Avaliar a relacao entre condicoes de moradia e baixo peso ao nascer e prematuridade associada ao baixo peso ao nascer nos filhos de mulheres de baixa renda. METODOS: Foi realizado estudo caso-controle com mulheres no pos-parto residentes no municipio do Rio de Janeiro, RJ, em 2003-2005. Dois grupos de casos foram comparados com controles a termo e com peso normal (n = 393): baixo peso ao nascer (n = 96) e prematuridade associada ao baixo peso ao nascer (n = 68). As condicoes de moradia foram consideradas nos niveis: adequadas, inadequadas e muito inadequadas. As covariaveis investigadas foram caracteristicas sociodemograficas, antropometricas, habitos de risco, violencia, ansiedade, satisfacao com a gravidez, historia obstetrica e cuidados pre-natais. RESULTADOS: Condicoes de moradia inadequadas foram independentemente associadas com baixo peso ao nascer (Inadequadas - OR = 2,3 (1,1;4,6) e muito inadequadas - OR = 7,6 (2,1;27,6) e com prematuridade associada ao baixo peso ao nascer (inadequadas - OR = 2,2 (1,1;4,3) e muito inadequadas - OR = 7,6 (2,4;23,9). Fatores associados com os desfechos incluiram cuidados pre-natais inadequados e prematuridade previa. Baixa renda e baixo indice de massa corporal materno foram associados com baixo peso ao nascer. CONCLUSOES: Condicoes de moradia inadequadas foram associadas com baixo peso ao nascer e prematuridade associada ao baixo peso ao nascer.

Oral health related quality of life in pregnant and post partum women in two social network domains; predominantly home-based and work-based networks.

BackgroundIndividuals connected to supportive social networks have better general and oral health quality of life. The objective of this study was to assess whether there were differences in oral health related quality of life (OHRQoL) between women connected to either predominantly home-based and work-based social networks.MethodsA follow-up prevalence study was conducted on 1403 pregnant and post-partum women (mean age of 25.2 ± 6.3 years) living in two cities in the State of Rio de Janeiro, Brazil. Women were participants in an established cohort followed from pregnancy (baseline) to post-partum period (follow-up). All participants were allocated to two groups; 1. work-based social network group - employed women with paid work, and, 2. home-based social network group - women with no paid work, housewives or unemployed women. Measures of social support and social network were used as well as questions on sociodemographic characteristics and OHRQoL and health related behaviors. Multinomial logistic regression was performed to obtain OR of relationships between occupational contexts, affectionate support and positive social interaction on the one hand, and oral health quality of life, using the Oral Health Impacts Profile (OHIP) measure, adjusted for age, ethnicity, family income, schooling, marital status and social class.ResultsThere was a modifying effect of positive social interaction on the odds of occupational context on OHRQoL. The odds of having a poorer OHIP score, ≥4, was significantly higher for women with home-based social networks and moderate levels of positive social interactions [OR 1.64 (95% CI: 1.08-2.48)], and for women with home-based social networks and low levels of positive social interactions [OR 2.15 (95% CI: 1.40-3.30)] compared with women with work-based social networks and high levels of positive social interactions. Black ethnicity was associated with OHIP scores ≥4 [OR 1.73 (95% CI: 1.23-2.42)].ConclusionsPregnant and post-partum Brazilian women in paid employment outside the home and having social supports had better OHRQoL than those with home-based social networks.

The relationship between social capital, social support and the adequate use of prenatal care

This study investigated the relationship between social capital and social support and the adequate use of prenatal care. A follow-up study involving 1,485 pregnant women was conducted in two cities in the Rio de Janeiro State, Brazil. Demographic and socioeconomic characteristics, social support and social capital data were collected during the first trimester of pregnancy. The post-partum period included information on levels of prenatal care utilization, social networks, parity, obstetric and gestational risk and prenatal care attendance. Hierarchized multinomial logistic regression was used in the statistical analysis. Prenatal care use above adequate levels was associated with high social capital at the city level (aggregated social capital), socioeconomic status and working during pregnancy. Lower non-aggregated contextual and compositional social capital, gestational risk and pattern of prenatal care were associated with inadequate prenatal care utilization. Contextual social capital and social support were found to be social determinants for the appropriate use of prenatal care.

The different effects of neighbourhood and individual social capital on health-compromising behaviours in women during pregnancy: a multi-level analysis

BackgroundThis study assessed clustering of three health-compromising behaviours and explored the association of neighbourhood and individual social capital with simultaneous health-compromising behaviours and patterns of those behaviours in women in the first trimester of pregnancy (baseline) and during the second and third trimesters of pregnancy (follow-up).MethodsA longitudinal study was conducted on a representative sample of women recruited in antenatal care units grouped in 46 neighbourhoods from Brazil. Neighbourhood-level measures (social capital and socioeconomic status), individual social capital (social support and social networks) and socio-demographic variables were collected at baseline. Smoking, alcohol consumption and inadequate diet were assessed at baseline and follow-up. Clustering was assessed using an observed to expected ratio method. The association of contextual and individual social capital with the health-compromising behaviours outcomes was analyzed through multilevel multivariate regression models.ResultsClustering of the three health-compromising behaviours as well as of smoking and alcohol consumption were identified at both baseline and follow-up periods. Neighbourhood social capital did not influence the occurrence of simultaneous health-compromising behaviours. More health-compromising behaviours in both periods was inversely associated with low levels of individual social capital. Low individual social capital predicted smoking during whole pregnancy, while high individual social capital increased the likelihood of stopping smoking and improving diet during pregnancy. Maintaining an inadequate diet during pregnancy was influenced by low individual and neighbourhood social capital.ConclusionsThree health-compromising behaviours are relatively common and cluster in Brazilian women throughout pregnancy. Low individual social capital significantly predicted simultaneous health-compromising behaviours and patterns of smoking and inadequate diet during pregnancy while low neighbourhood social capital was only relevant for inadequate diet. These findings suggest that interventions focusing on reducing multiple behaviours should be part of antenatal care throughout pregnancy. Individual and contextual social resources should be considered when planning the interventions.

The Influence of Stress and Anxiety on the Expectation, Perception and Memory of Dental Pain in Schoolchildren

The aim of this study was to investigate the association of stress and anxiety with the expectation, perception and memory of dental pain among schoolchildren. A follow-up study involving 46 children aged 9 to 12 years was conducted in a public school in the city of Petropolis (RJ), Brazil. Demographic characteristics, stress (children’s stress scale), and state and trait anxiety (state–trait anxiety inventory) were recorded before a dental procedure to restore the occlusal surface of a permanent first molar under local anaesthetic. Dental pain was assessed using the faces pain scale before (dental pain expectation), immediately after (dental pain perception) and six weeks after (memory of dental pain) the dental procedure. Dental pain expectation scores were significantly higher than dental pain perception, independent of the levels of stress, state anxiety and trait anxiety. Children with high scores of stress (OR 1.05 95%CI 1.02–1.09), state anxiety (OR 1.15 95%CI 1.05–1.27) and trait anxiety (OR 1.18 95%CI 1.07–1.30) were more likely to report greater scores of dental pain expectation. Children anticipated more dental pain than what was actually perceived after the dental restoration. Children with greater levels of stress and anxiety have a distorted evaluation of expected dental pain before the dental procedure.

Condições de moradia como determinante social de baixo peso ao nascer e prematuro de baixo peso

OBJECTIVE To assess the relationship between housing conditions and low birthweight and preterm low birthweight among low-income women. METHODS A case-control study was conducted with post-partum women living in the city of Rio de Janeiro, Southeast Brazil, in 2003-2005. Two groups of cases, low birthweight (n=96) and preterm low birthweight infants (n=68), were compared against normal weight term controls (n=393). Housing conditions were categorized into three levels: adequate, inadequate, and highly inadequate. Covariates included sociodemographic and anthropometric characteristics, risk behaviors, violence, anxiety, satisfaction during pregnancy, obstetric history and prenatal care. RESULTS Poor housing conditions was independently associated with low birthweight (inadequate--OR 2.3 [1.1;4.6]; highly inadequate--OR 7.6 [2.1;27.6]) and preterm low birthweight (inadequate--OR 2.2 [1.1;4.3]; highly inadequate--OR 7.6 [2.4;23.9]) and factors associated with outcomes were inadequate prenatal care and previous preterm birth. Low income and low maternal body mass index remained associated with low birthweight. CONCLUSIONS Poor housing conditions were associated with low birthweight and preterm low birthweight.OBJETIVO: Avaliar a relacao entre condicoes de moradia e baixo peso ao nascer e prematuridade associada ao baixo peso ao nascer nos filhos de mulheres de baixa renda. METODOS: Foi realizado estudo caso-controle com mulheres no pos-parto residentes no municipio do Rio de Janeiro, RJ, em 2003-2005. Dois grupos de casos foram comparados com controles a termo e com peso normal (n = 393): baixo peso ao nascer (n = 96) e prematuridade associada ao baixo peso ao nascer (n = 68). As condicoes de moradia foram consideradas nos niveis: adequadas, inadequadas e muito inadequadas. As covariaveis investigadas foram caracteristicas sociodemograficas, antropometricas, habitos de risco, violencia, ansiedade, satisfacao com a gravidez, historia obstetrica e cuidados pre-natais. RESULTADOS: Condicoes de moradia inadequadas foram independentemente associadas com baixo peso ao nascer (Inadequadas - OR = 2,3 (1,1;4,6) e muito inadequadas - OR = 7,6 (2,1;27,6) e com prematuridade associada ao baixo peso ao nascer (inadequadas - OR = 2,2 (1,1;4,3) e muito inadequadas - OR = 7,6 (2,4;23,9). Fatores associados com os desfechos incluiram cuidados pre-natais inadequados e prematuridade previa. Baixa renda e baixo indice de massa corporal materno foram associados com baixo peso ao nascer. CONCLUSOES: Condicoes de moradia inadequadas foram associadas com baixo peso ao nascer e prematuridade associada ao baixo peso ao nascer.