Objective

Extremely low birth weight children are at high risk for cognitive impairment.

Study design

Cognitive outcome of extremely low birth weight children participating in a Neonatal Research Network, randomized trial was evaluated at 18 and 30 months corrected age using the Bayley Scales of Infant Development, 2nd ed. Family resources and social support were assessed using a Family Resource Scale parent questionnaire. Regression analysis was used to determine independent demographic, medical, and family resource factors influencing longitudinal cognitive outcome.

Result

Higher Family Resource Scale scores at 18 months were associated with greater improvement in cognitive scores between 18 and 30 months. Cognitive outcome was most adversely affected in children whose families had the least resources and social support. The adverse effect of poor social support was independent of family income.

Conclusion

Poor interpersonal social support has an independent, adverse impact on cognitive outcomes of extremely low birth weight infants.

Background

Previous research has indicated positive effects of early developmental intervention (EDI) on the development of children in developing countries. Few studies, however, have examined longitudinally when differential treatment effects may be observed and whether differential outcomes are associated with exposure to different risk factors and country of implementation. Also, birth asphyxia as a risk condition has not been well studied. To address these limitations, we conducted a randomized controlled trial to test the hypothesis that there will be differential developmental trajectories favoring those who receive EDI versus a health education intervention in children in rural areas of India, Pakistan, and Zambia.

Methods

Children with and without birth asphyxia were randomized to EDI or control intervention, which was implemented by parents who received training in biweekly home visits initiated before child age 1 month and continuing until 36 months. Development was assessed in 376 children at ages 12, 24, and 36 months using the Bayley Scales of Infant Development and Ages & Stages Questionnaire administered by evaluators blind to intervention assignment and risk condition.

Results

Longitudinal mixed model analysis indicated that EDI resulted in better development over 36 months in cognitive abilities, regardless of risk condition, maternal resources, child gender, or country. Psychomotor development and parent-reported general development showed similar trends as for cognitive abilities, but were not statistically different between intervention conditions. Developmental differences were observed first at 36 months of age.

Conclusion

Early developmental intervention has promise for improving development in children across developing countries when exposed to various risk conditions. EDI should be one prominent approach used to begin to address long-term outcomes and intergenerational transmission of poverty.

Objective

To develop a framework that describes the most important symptom outcomes for anal incontinence treatment from the patient perspective.

Methods

A conceptual framework was developed by the Pelvic Floor Disorders Network based on four semistructured focus groups and confirmed in two sets of 10 cognitive interviews including women with anal incontinence. We explored: 1) patient-preferred terminology for describing anal incontinence symptoms; 2) patient definitions of treatment "success"; 3) importance of symptoms and outcomes in the framework; and 4) conceptual gaps (defined as outcomes not previously identified as important). Sessions were conducted according to grounded theory transcribed, coded, and qualitatively and quantitatively analyzed to identify relevant themes. Content and face validity of the framework were further assessed using cognitive interviews.

Results

Thirty-four women participated in focus groups and 20 in cognitive interviews. Overall, 29 (54%) were aged 60 years or older, 42 (78%) were white, and 10 (19%) had a high school degree or less. Two overarching outcome themes were identified: "primary bowel leakage symptoms" and "ancillary bowel symptoms." Subdomains important in primary bowel leakage symptoms included leakage characteristics (symptom frequency, amount of leakage, symptom bother) and conditions when bowel leakage occurs (predictability, awareness, urgency). Subdomains important under ancillary bowel symptoms included emptying disorders (constipation, obstructed defecation, and wiping issues) and discomfort (pain, burning). New outcomes identified included predictability, awareness, wiping issues, and discomfort.

Conclusion

Women with anal incontinence desire a wide range of symptom outcomes after treatment. These are captured in our conceptual framework, which can aid clinicians and researchers in assessing anal incontinence. LEVEL OF EVIEDENCE: II.

Introduction and hypothesis

We describe the responsiveness and minimally important difference (MID) of the Accidental Bowel Leakage Evaluation (ABLE) questionnaire.

Methods

Women with bowel leakage completed ABLE, Patient Global Impression of Improvement, Colo-Rectal Anal Distress Inventory, and Vaizey questionnaires pretreatment and again at 24 weeks post-treatment. Change scores were correlated between questionnaires. Student's t tests compared ABLE change scores for improved versus not improved based on other measures. The MID was determined by anchor- and distribution-based approaches.

Results

In 266 women, the mean age was 63.75 (SD = 11.14) and 79% were white. Mean baseline ABLE scores were 2.32 ± 0.56 (possible range 1-5) with a reduction of 0.62 (SD = 0.79) by 24 weeks. ABLE change scores correlated with related measures change scores (r = 0.24 to 0.53) and differed between women who improved and did not improve (all p < 0.001). Standardized response means for participants who improved were large ranging from -0.89 to -1.12. Distribution-based methods suggest a MID of -0.19 based on the criterion of one SEM and -0.28 based on half a standard deviation. Anchor-based MIDs ranged from -0.10 to -0.45. We recommend a MID of -0.20.

Conclusions

The ABLE questionnaire is responsive to change, with a suggested MID of -0.20.

Background

Questionnaires assessing accidental bowel leakage lack important patient-centered symptoms.

Objective

We aimed to create a valid measure of accidental bowel leakage symptoms.

Design

We previously created a conceptual framework capturing patient-centered accidental bowel leakage symptoms. The framework included bowel leakage type, severity and bother, and ancillary bowel symptoms, including predictability, awareness, leakage control, emptying disorders, and discomfort.

Settings

The study was conducted in outpatient clinics.

Patients

Women with at least monthly accidental bowel leakage were included.

Interventions

Participants completed the Accidental Bowel Leakage Evaluation at baseline and 12 and 24 weeks, as well as bowel diaries and other validated pelvic floor questionnaires. A subset completed items twice before treatment. Final item selection was based on psychometric properties and clinical importance.

Main outcome measures

Psychometric analyses included Cronbach α, confirmatory factor, and item response theory analyses. Construct validity was based on correlations with measures of similar constructs.

Results

A total of 296 women completed baseline items, and 70 provided test-retest data. The cohort was predominately white (79%) and middle aged (64 ± 11 y). Confirmatory factor analyses supported the conceptual framework. The final 18-item scale demonstrated good internal consistency (Cronbach α = 0.77-0.90) and test-retest reliability (intraclass correlation = 0.80). Construct validity was demonstrated with baseline and 12- and 24-week scale scores, which correlated with the Vaizey (r = 0.52, 0.68, and 0.69), Colorectal Anal Distress Inventory (r = 0.54, 0.65, 0.71), Colorectal Anal Impact Questionnaire (r = 0.48, 0.53, 0.53), and hygiene (r = 0.39, 0.43, 0.49) and avoidance subscales scores of the adaptive index (r = 0.45, 0.44, 0.43) and average number of pad changes per day on bowel diaries (r = 0.35, 0.38, 0.31; all p < 0.001).

Limitations

The study was limited by nature of involving validation in a care-seeking population.

Conclusions

The Accidental Bowel Leakage Evaluation instrument is a reliable, patient-centered measure with good validity properties. This instrument improves on currently available measures by adding patient-important domains of predictability, awareness, control, emptying, and discomfort. See Video Abstract at http://links.lww.com/DCR/B172. EVALUACIóN DE FUGA INTESTINAL ACCIDENTAL: UNA NUEVA MEDIDA VALIDADA Y CENTRADA EN PACIENTES FEMENINOS CON SíNTOMAS DE FUGA INTESTINAL ACCIDENTAL: Los cuestionarios que evalúan la fuga intestinal accidental, carecen de síntomas centrados en el paciente.Nuestro objetivo fue crear una medida válida de síntomas de fuga intestinal accidental.Previamente creamos un marco conceptual centrado en el paciente, para capturar síntomas de fuga intestinal accidental. El marco incluía tipo de fuga intestinal, gravedad, molestia, y síntomas intestinales auxiliares, incluyendo previsibilidad, conciencia, control de fugas, trastornos de vaciado e incomodidad.Clínicas de pacientes externos.Mujeres con al menos una fuga intestinal accidental mensual.Las participantes completaron la Evaluación de Fuga Intestinal Accidental al inicio del estudio y a las 12 y 24 semanas, así como diarios intestinales y otros cuestionarios validados del piso pélvico. Un subconjunto completó los elementos dos veces antes del tratamiento. La selección final del elemento se basó en las propiedades psicométricas y la importancia clínica.Los análisis psicométricos incluyeron el Alfa de Cronbach, factor confirmatorio y análisis de la teoría de respuesta al elemento. La validez de constructo se basó en correlaciones con medidas de constructos similares.Un total de 296 mujeres completaron los elementos de referencia y 70 proporcionaron datos de test-retest. La cohorte fue predominantemente blanca (79%) y de mediana edad (64 +/- 11 años). Análisis factorial confirmatorio respaldó el marco conceptual. La escala final de 18 elementos, demostró una buena consistencia interna (Alfa de Cronbach = 0,77-0,90) y fiabilidad test-retest (correlación intraclase = 0,80). La validez de constructo se demostró con puntajes de escala de referencia de 12 y 24 semanas que se correlacionaron con Vaizey (r = 0,52, 0,68 y 0,69), Inventario de Ansiedad colorecto anal (r = 0,54, 0,65, 0,71), Cuestionarios de Impacto colorecto anal (r = 0,48, 0,53, 0,53) e higiene (r = 0,39, 0,43, 0,49), puntuaciones de subescalas de evitación del índice adaptativo (r = 0,45, 0,44, 0,43), número promedio de cambios de almohadilla por día, de los diarios intestinales (r = 0.35, 0.38, 0.31), todos p <.001.Validación de una población en busca de atención.El instrumento de Evaluación de Fuga Intestinal Accidental es una medida confiable, centrada en el paciente y con buenas propiedades de validez. Este instrumento mejora las medidas actualmente disponibles, al agregar dominios importantes para el paciente de previsibilidad, conciencia, control, vaciado e incomodidad. Consulte Video Resumen en http://links.lww.com/DCR/B172. (Traducción-Dr. Fidel Ruiz Healy).

Background

There is increased risk of cardiovascular, metabolic, and hypertensive disorders in later life in the preterm population. We studied school-age children who had been born extremely premature who had undergone endocrine, cardiovascular, and anthropometric evaluations.

Methods

School age measurements of salivary cortisol, adrenal androgens, blood pressure, and anthropometric markers were correlated with DNA methylation of 11-betahydroxysteroid dehydrogenase type 2 (11BHSD2), leptin, and the LINE1 repetitive DNA element.

Results

We observed a modest correlation between log AUC for salivary cortisol and methylation of leptin in preterm infants and a negative correlation between methylation of region 1 of the glucocorticoid receptor (GR in term-born infants. There was an association between LINE1 methylation and cortisol response to awakening and a negative correlation between LINE1 and systolic blood pressure at 6-7 years. Methylation of the GR promoter region showed a positive association with systolic blood pressure at 6-7 years of age.

Conclusions

These results show that extremely preterm birth, followed by complex patterns of endocrine, cardiovascular, and metabolic exposures during early postnatal life, is associated with lasting changes in DNA methylation patterns in genes involved in hypothalamic pituitary adrenal axis function, adrenal hormonal regulation, and cardiometabolic risk.

Impact

Preterm infants have significant environmental and physiological exposures during early life that may have lasting impact on later function. Alterations in hypothalamic pituitary adrenal axis (HPA) function have been associated with these exposures. We examined the associated changes in DNA methylation of important genes involved in HPA function, metabolism, and global DNA methylation. The changes we saw in DNA methylation may help to explain associated cardiovascular, metabolic, and growth disturbance in these children in later life.

To investigate whether early developmental intervention (EDI) can positively affect the trajectories of cognitive development among children from low-resource families. Longitudinal analyses were conducted of data from 293 children in the Brain Research to Ameliorate Impaired Neurodevelopment Home-based Intervention Trial, a randomized controlled trial of a home-based EDI program, to examine trajectories of Bayley Scales of Infant Development-Second Edition Mental Development Index (MDI) scores from 12 to 36 months of age among young children from high- and low-resource families in 3 low- to middle-resource countries. A 3-way interaction among family resources, intervention group, and age was statistically significant after controlling for maternal, child, and birth characteristics (Wald χ(2)(1) = 9.41, P = .002). Among children of families with high resources, both the intervention and control groups had significant increases in MDI scores over time (P < .001 and P = .002, respectively), and 36-month MDI scores for these 2 groups did not differ significantly (P = .602). However, in families with low resources, the EDI group displayed greater improvement, resulting in significantly higher 36-month MDI scores than the control group (P < .001). In addition, the 36-month MDI scores for children in families with low resources receiving EDI did not differ significantly from children from high-resource families in either the EDI (P = .509) or control (P = .882) groups. A home-based EDI during the first 3 years of life can substantially decrease the developmental gap between children from families with lower versus higher resources, even among children in low- to middle-resource countries.

Background

Data reported during the past 5 years indicate that rates of survival have increased among infants born at the borderline of viability, but less is known about how increased rates of survival among these infants relate to early childhood neurodevelopmental outcomes.

Methods

We compared survival and neurodevelopmental outcomes among infants born at 22 to 24 weeks of gestation, as assessed at 18 to 22 months of corrected age, across three consecutive birth-year epochs (2000-2003 [epoch 1], 2004-2007 [epoch 2], and 2008-2011 [epoch 3]). The infants were born at 11 centers that participated in the National Institute of Child Health and Human Development Neonatal Research Network. The primary outcome measure was a three-level outcome - survival without neurodevelopmental impairment, survival with neurodevelopmental impairment, or death. After accounting for differences in infant characteristics, including birth center, we used multinomial generalized logit models to compare the relative risk of survival without neurodevelopmental impairment, survival with neurodevelopmental impairment, and death.

Results

Data on the primary outcome were available for 4274 of 4458 infants (96%) born at the 11 centers. The percentage of infants who survived increased from 30% (424 of 1391 infants) in epoch 1 to 36% (487 of 1348 infants) in epoch 3 (P<0.001). The percentage of infants who survived without neurodevelopmental impairment increased from 16% (217 of 1391) in epoch 1 to 20% (276 of 1348) in epoch 3 (P=0.001), whereas the percentage of infants who survived with neurodevelopmental impairment did not change significantly (15% [207 of 1391] in epoch 1 and 16% [211 of 1348] in epoch 3, P=0.29). After adjustment for changes in the baseline characteristics of the infants over time, both the rate of survival with neurodevelopmental impairment (as compared with death) and the rate of survival without neurodevelopmental impairment (as compared with death) increased over time (adjusted relative risks, 1.27 [95% confidence interval {CI}, 1.01 to 1.59] and 1.59 [95% CI, 1.28 to 1.99], respectively).

Conclusions

The rate of survival without neurodevelopmental impairment increased between 2000 and 2011 in this large cohort of periviable infants. (Funded by the National Institutes of Health and others; ClinicalTrials.gov numbers, NCT00063063 and NCT00009633 .).

Background

Although leisure-time physical activity (PA) contributes to overall health, including pregnancy health, patterns across pregnancy have not been related to birth outcomes. We hypothesized that women with sustained low leisure-time PA would have excess risk of adverse pregnancy outcomes, and that changing patterns across pregnancy (high to low and low to high) may also be related to risk of adverse pregnancy outcomes.

Methods

Nulliparous women (n = 10,038) were enrolled at 8 centers early in pregnancy (mean gestational age in weeks [SD] = 12.05 [1.51]. Frequency, duration, and intensity (metabolic equivalents) of up to three leisure activities reported in the first, second and third trimesters were analyzed. Growth mixture modeling was used to identify leisure-time PA patterns across pregnancy. Adverse pregnancy outcomes (preterm birth, [PTB, overall and spontaneous], hypertensive disorders of pregnancy [HDP], gestational diabetes [GDM] and small-for-gestational-age births [SGA]) were assessed via chart abstraction.

Results

Five patterns of leisure-time PA across pregnancy were identified: High (35%), low (18%), late decreasing (24%), early decreasing (10%), and early increasing (13%). Women with sustained low leisure-time PA were younger and more likely to be black or Hispanic, obese, or to have smoked prior to pregnancy. Women with low vs. high leisure-time PA patterns had higher rates of PTB (10.4 vs. 7.5), HDP (13.9 vs. 11.4), and GDM (5.7 vs. 3.1, all p < 0.05). After adjusting for maternal factors (age, race/ethnicity, BMI and smoking), the risk of GDM (Odds ratio 2.00 [95% CI 1.47, 2.73]) remained higher in women with low compared to high patterns. Early and late decreasing leisure-time PA patterns were also associated with higher rates of GDM. In contrast, women with early increasing patterns had rates of GDM similar to the group with high leisure-time PA (3.8% vs. 3.1%, adjusted OR 1.16 [0.81, 1.68]). Adjusted risk of overall PTB (1.31 [1.05, 1.63]) was higher in the low pattern group, but spontaneous PTB, HDP and SGA were not associated with leisure-time PA patterns.

Conclusions

Sustained low leisure-time PA across pregnancy is associated with excess risk of GDM and overall PTB compared to high patterns in nulliparous women. Women with increased leisure-time PA early in pregnancy had low rates of GDM that were similar to women with high patterns, raising the possibility that early pregnancy increases in activity may be associated with improved pregnancy health.

Trial registration

Registration number NCT02231398 .