Follow-up of infants with colic into childhood: Do they develop behavioural problems?

AIM

To assess whether infants with colic (IC) demonstrate persisting developmental dysregulation into childhood, manifested as behavioural problems, and to determine if these behavioural problems are associated with parenting factors.

METHODS

Preschool children with a history of IC at the age of 0-3 months, as defined by the Wessel criteria, were invited to participate in an observational follow-up study, in which their caregivers completed the Child Behaviour Checklist (CBCL). Raw scores and clinical-range scores on the internalising, externalising and total behavioural problems scales were compared with a Dutch normative sample using independent t-tests and Chi-square tests. For the clinical-range scores, multivariable logistic regressions (odds ratios [99% confidence interval, CI]) were used to adjust for confounders and to identify variables associated with behavioural problems.

RESULTS

Two hundred and fifty-eight children with a history of IC (median age 5.1 (interquartile range, IQR 4.6-5.5) years, 51.9% boys) were included. The cases had a significantly higher adjusted risk (adjusted odds ratios (aORs) [99% CI]) of scoring in the clinical range of the emotionally reactive, internalising and total problems scale (2.96 [1.24-7.06]; 2.50 [1.35-4.62]; 2.98 [1.46-6.07], respectively). Internalising (P < 0.001), externalising (P < 0.001) and total (P < 0.001) behavioural problems in children with a history of IC were associated with higher parenting stress scores.

CONCLUSIONS

Children with a history of IC demonstrated significantly more internalising behavioural problems at preschool age compared to the norm sample. Specific advice and support need to be available for parents to understand and regulate the behaviour of their child, from infancy to childhood.

Renewed Attention Needed for Prevention of Sudden Unexpected Death in Infancy in the Netherlands

Background: The incidence of sudden unexpected death in infancy (SUDI), which includes sudden infant death syndrome (SIDS), has declined in developed countries since the 1980s, including the Netherlands. To identify improvement opportunities in SUDI prevention, we monitored the adherence of parents to the prevention advice on infant care habits over the past 20 years, especially in relation to the SUDI incidence over time. Potential changes in parental adherence between the latest surveys are of specific interest, as these indicate where current focus is needed. Methods: Description of the prevalence of infant care factors related to the risk of SUDI, assessed from five Dutch national surveys from 1999 to 2017 among parents of infants under 12 months, and analysis of the potential differences in these prevalences between the two latest surveys in 2010/11 and 2017 with a z-test. Results: Supine sleeping position decreased from the highest prevalence of 92% in 2010/11, to 83% in 2017. Sleep sack use has increased to 55%, the highest prevalence up to now. Avoiding a duvet has remained reasonably stable since 2002/03 and now 95% of parents do not use a duvet. The prevalence of room-sharing, without sharing the bed, increased from 14% in 1999 to the highest prevalence in 2017 (31%). However, also bed-sharing almost doubled from 5.6% in 2010/11 to 10% in 2017. Breastfeeding decreased between 1999 and 2010/11, but increased from 34% in 2010/11 to 42% in 2017. An increased prevalence of mothers who abstained from smoking during pregnancy, as well as both parents not smoking, was observed, although mostly higher educated parents showed this beneficial behavior. Discussion and Conclusion: Much has already been achieved first by decreasing prone sleeping since the 80's, and subsequently promoting supine as the safest sleep position. The decrease in duvet use and smoking, and an increase in breastfeeding have also had impact. Indications of a recent decreased prevalence of the supine sleeping position and higher prevalence of bed-sharing might relate to the slightly increasing SUDI incidence in the Netherlands. Renewed attention for prevention of SUDI and specific advice targeting high-risk groups is needed. Modern, picture driven information via internet is recommended.

Risk and Preventive Factors for SUDI: Need We Adjust the Current Prevention Advice in a Low-Incidence Country

Background: The incidence of Sudden Unexpected Death in Infancy (SUDI) is low in the Netherlands, with an incidence rate of 0.18 per 1,000 live births. Therefore, prevention advice may receive less attention, potentially leading to increasing incidence rates. It is currently unknown whether the risks for SUDI changed in the Netherlands, and if other risk factors might be present. The aim of this study was to examine the current risks and preventive factors for SUDI in Dutch infants, in order to determine if it is necessary to adapt the prevention advice toward the current needs. Methods: A case-control study was conducted comparing SUDI cases aged <12 months from 2014-2020 in the Netherlands (n = 47), to a Dutch national survey control group from 2017 including infants <12 months of age (n = 1,192). Results: Elevated risks for several well-known factors were observed, namely: duvet use (aOR = 8.6), mother smoked during pregnancy (aOR = 9.7), or after pregnancy (aOR = 5.4) and the prone sleeping position (aOR = 4.6). Reduced risks were observed for the well-known factors: room-sharing (aOR = 0.3), sleep sack use (aOR = 0.3), breastfeeding (aOR = 0.3), and the use of a pacifier (aOR = 0.4). For infants <4 months, the risk for SUDI was higher when bed-sharing (aOR = 3.3), and lower when room-sharing (aOR = 0.2) compared to older infants. For older infants, the sleep sack was found to be more protective (aOR = 0.2). A high risk for SUDI when bed-sharing was found when mother smoked, smoked during pregnancy, or if the infant did not receive any breastfeeding (respectively aOR = 17.7, aOR = 10.8, aOR = 9.2). Conclusions: Internationally known factors related to the sudden unexpected death of infants were also found in this study. Relatively new findings are related to specific groups of infants, in which the strengths of these risk factors differed. In a low-incidence country like the Netherlands, renewed attention to the current prevention advice is needed. Furthermore, additional attention for prevention measures in low educated groups, and additional advice specifically targeting high-risk groups is recommended.

Identifying patterns of lifestyle behaviours among children of 3 years old

BACKGROUND

To identify the patterns of lifestyle behaviours in children aged 3 years, to investigate the parental and child characteristics associated with the lifestyle patterns, and to examine whether the identified lifestyle patterns are associated with child BMI and weight status.

METHODS

Cross-sectional data of 2090 children 3 years old participating in the Dutch BeeBOFT study were used. Child dietary intakes, screen times and physical activity were assessed by parental questionnaire, and child weight and height were measured by trained professionals according to a standardized protocol. Latent class analysis was applied to identify patterns of lifestyle behaviours among children.

RESULTS

Three subgroups of children with distinct patterns of lifestyle behaviours were identified: the 'unhealthy lifestyle' pattern (36%), the 'low snacking and low screen time' pattern (48%) and the 'active, high fruit and vegetable, high snacking and high screen time' pattern (16%). Children with low maternal educational level, those raised with permissive parenting style (compared those with authoritative parents), and boys were more likely be allocated to the 'unhealthy lifestyle' pattern and the 'active, high fruit and vegetable, high snacking and high screen time' pattern (P < 0.05). No association was found between the identified lifestyle patterns and child BMI z-score at age 3 years.

CONCLUSIONS

Three different lifestyle patterns were observed among children aged 3 years. Low maternal educational level, permissive parenting style and male gender of the child were associated with having unhealthy lifestyle patterns for the child.

Sleep and body mass index in infancy and early childhood (6-36 mo): a longitudinal study

BACKGROUND

Relatively, few longitudinal studies have evaluated the association between sleep and body mass index (BMI) among younger children. In addition, few studies have evaluated the bidirectional longitudinal association between sleep duration and child BMI.

OBJECTIVE

The objective of the study is to determine in children aged 6 to 36 months (1) the cross-sectional association of sleep duration and sleep problems with child BMI z score, (2) whether sleep duration predicts changes in child BMI z score, and (3) and whether BMI z score can predict changes in child sleep duration.

METHODS

This study used longitudinal data from the BeeBOFT study (N = 2308). Child sleep duration and sleep problems (indicated by night awakenings and sleep-onset latency) were parent reported, and child BMI was measured using a standardized protocol by trained healthcare professionals at approximately 6, 14, and 36 months of age. Linear mixed models and linear regression models were applied to assess the cross-sectional and bidirectional longitudinal associations between sleep and BMI z scores.

RESULTS

Cross sectionally, shorter sleep duration was associated with higher BMI z scores at 14 (β = -0.034, P < 0.05) and 36 months (β = -0.045, P < 0.05). Sleep duration at 6 or 14 months did not predict BMI z score at either 14 or 36 months. Higher BMI z scores at 6 months predicted shorter sleep duration (hours) at 14 months (β = -0.129, P < 0.001). No association was found between sleep problems and child BMI z scores.

CONCLUSIONS

Cross-sectional associations between shorter sleep duration and higher BMI z score emerged in early childhood (age 14 and 36 mo). Higher BMI z scores may precede shorter sleep duration but not vice versa.

Factors associated with early introduction of complementary feeding and consumption of non-recommended foods among Dutch infants: the BeeBOFT study

BACKGROUND

Timing and types of complementary feeding in infancy affect nutritional status and health later in life. The present study aimed to investigate the factors associated with early introduction of complementary feeding (i.e., before age 4 months), and factors associated with infants consumption of non-recommended foods, including sweet beverages and snack foods.

METHODS

This study used cross-sectional data from the BeeBOFT study (n = 2157). Data on complementary feeding practices and potential determinants were obtained by questionnaire at infant's age of 6 months. Logistic regression models were used to investigate factors associated with early introduction of complementary feeding and infants' consumption of non-recommended foods.

RESULTS

21.4% of infants had received complementary feeding before 4 months of age. At the age of 6 months, 20.2% of all infants were consuming sweet beverages daily and 16.5% were consuming snack foods daily. Younger maternal age, lower maternal educational level, absence or shorter duration of breastfeeding, parental conviction that "my child always wants to eat when he/she sees someone eating" and not attending day-care were independently associated with both early introduction of complementary feeding and the consumption of non-recommended foods. Higher maternal pre-pregnancy BMI and infant postnatal weight gain were associated only with early introduction of complementary feeding.

CONCLUSIONS

We identified several demographical, biological, behavioral, psychosocial, and social factors associated with inappropriate complementary feeding practices. These findings are relevant for designing intervention programs aimed at educating parents.

TRIAL REGISTRATION

The trail is registered at Netherlands Trial Register, trail registration number: NTR1831 . Retrospectively registered on May 29, 2009.

Relationship between socioeconomic status and weight gain during infancy: The BeeBOFT study

BACKGROUND

Increased weight gain during infancy is a risk factor for obesity and related diseases in later life. The aim of the present study was to investigate the association between socioeconomic status (SES) and weight gain during infancy, and to identify the factors mediating the association between SES and infant weight gain.

METHODS

Subjects were 2513 parent-child dyads participating in a cluster randomized controlled intervention study. Family SES was indexed by maternal education level. Weight gain in different time windows (infant age 0-3, 0-6, and 6-12 months) was calculated by subtracting the weight for age z-score (WAZ) between the two time-points. Path analysis was performed to examine the mediating pathways linking SES and infant weight gain.

RESULTS

On average, infants of low-educated mothers had a lower birth weight and caught-up at approximately 6 months. In the period of 0-6 months, infants with low-educated mothers had an 0.42 (95% CI 0.27-0.57) higher gain in weight for age z-score compared to children with high-educated mothers. The association between maternal education level and increased infant weight gain in the period of 0-6 months can be explained by infant birth weight, gestational age at child birth, duration of breastfeeding, and age at introduction of complementary foods. After adjusting all the mediating factors, there was no association between maternal education level and infant weight gain.

CONCLUSION

Infants with lower SES had an increased weight gain during the first 6 months of infancy, and the effect can be explained by infant birth weight, gestational age at child birth, and infant feeding practices.

[Eleventh Safe Sleeping Survey in the Netherlands: parents' habits concerning infant sleep position and location]

OBJECTIVE

To investigate to what extent parents of infants are following national safe sleep advice given for the prevention of Sudden Infant Death Syndrome (SIDS) and to study the reasons for not adhering to recommendations on sleep position (always on the back) and location (parents and infant not sleeping in the same bed).

DESIGN

Quantitative and qualitative cross-sectional study.

METHOD

Online survey among parents of 0-11 month old children via well-baby clinics and online media.

RESULTS

Of the 1,209 respondents, 72.4% indicated that their child was usually placed on the back, and 34.1% indicated that their child slept in the same room as its parent(s), but not in the same bed. Of children aged 0-2 and 3-4 months 6.3% and 8.2% respectively slept with their parents in one bed. Parents of children of 0-6 months old (n = 199) who are not adhering to advice on sleeping position most often indicated that the child sleeps better (35%), that there is a preferred position or flat head syndrome (13%) or a desire to prevent it (16%, 29% combined). Reasons most frequently mentioned by parents for not following the recommendation not to sleep with their child in the same bed were: ease of breastfeeding (50%; n = 24) and better sleep of the child (40%; n = 19); this was for children of 0-6 months old.

CONCLUSION

Parents do not automatically follow safe sleep recommendations for their child. Prevention may be improved by talking to parents about their reasons for not adhering to recommendations and determining together how to create a safe sleeping environment for the baby.

Personalized Web-Based Advice in Combination With Well-Child Visits to Prevent Overweight in Young Children: Cluster Randomized Controlled Trial

BACKGROUND

Overweight is a major health issue, and parent-targeted interventions to promote healthy development in children are needed.

OBJECTIVE

The study aimed to evaluate E-health4Uth Healthy Toddler, an intervention that educates parents of children aged 18 to 24 months regarding health-related behaviors, as compared with usual care. The effect of this intervention on the following primary outcomes was evaluated when the children were 36 months of age: health-related behaviors (breakfast daily, activity and outside play, sweetened beverage consumption, television (TV) viewing and computer time), body mass index (BMI), and the prevalence of overweight and obesity.

METHODS

The BeeBOFT (acronym for breastfeeding, breakfast daily, outside playing, few sweet drinks, less TV viewing) study is a cluster randomized controlled trial involving 51 Youth Health Care (YHC) teams. In total, 1094 parents participated in the control group, and 1008 parents participated in the E-health4Uth Healthy Toddler intervention group. The intervention consisted of Web-based personalized advice given to parents who completed an eHealth module and discussion of the advice during a regular well-child visit. In this study the eHealth module was offered to parents before two regular well-child visits at 18 and 24 months of age. During the well-child visits, the parents' personalized advice was combined with face-to-face counseling provided by the YHC professional. Parents in the control group received usual care, consisting of the regular well-child visits during which general information on child health-related behavior was provided to parents. Parents completed questionnaires regarding family characteristics and health-related behaviors when the child was 1 month (inclusion), 6 months, 14 months, and 36 months (follow-up) of age. The child's height and weight were measured by trained health care professionals from birth through 36 months of age at fixed time points. Multilevel linear and logistic regression models were used to evaluate the primary outcomes at 36 months of age.

RESULTS

At 36 months, we observed no differences between health-related behaviors of children, BMI or the percentage of children having overweight or obesity in the control and intervention group (P>.05). An analysis of the intervention effect revealed that boys benefited from eating breakfast daily, non-Dutch children spent more time being active or playing outdoors, children of low-educated parents and of overweight and obese mothers spent less time watching TV or using the computer, and children of normal weight mothers drank less sweetened beverages (P<.05) compared with the control group.

CONCLUSIONS

The E-health4Uth Healthy Toddler intervention resulted in small improvements in health-related behaviors among subgroups but had no significant effects with respect to the children's BMI. We conclude that the E-health4Uth Healthy Toddler intervention may be useful for pediatric health care professionals in terms of providing parents with personalized information regarding their child's health-related behaviors.

TRIAL REGISTRATION

Netherlands Trial Register: NTR1831; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=1831 (Archived by WebCite at http://www.webcitation.org/6mm5YFOB0).

Implementation of Child Death Review in the Netherlands: results of a pilot study

Background

Child mortality in the Netherlands declined gradually in the past decades. In total 1130 children and youth aged 0 to 19 years died in 2014 (i.e. 29.4 per 100,000 live births). A better understanding of the background and the circumstances surrounding the death of children as well as the manner and cause of death may lead to preventive measures. Child Death Review (CDR) is a method to systematically analyze child deaths by a multidisciplinary team to identify avoidable factors that may have contributed to the death and to give directions for prevention. CDR could be an addition to further reduce avoidable child deaths in the Netherlands. The purpose of this study is to explore the strengths, weaknesses, opportunities and threats (SWOT) of the pilot-implementation of CDR in a Dutch region. The results are translated in recommendations for future implementation of the CDR method in the Netherlands.

Methods

Children who lived in the pilot region and died aged 29 days after birth until 2 years were, after parental consent, included for reviewing by a regional CDR team. Eighteen logs and seven transcribed records of CDR meetings concerning 6 deceased children were analyzed using Atlas ti. The SWOT framework was used to identify important themes.

Results

The most important strengths identified were the expertise of and cooperation within the CDR team and the available materials. An important weakness was the poor cooperation of some professional groups. The fact that parents and professionals endorse the objective of CDR was an important opportunity. The lack of statutory basis was a threat.

Conclusions

Many obstacles need to be taken away before large-scale implementation of CDR in the Netherlands becomes possible. The most important precondition for implementation is the acceptance among professionals and the statutory basis of the CDR method.

Electronic supplementary material

The online version of this article (doi:10.1186/s12913-016-1500-9) contains supplementary material, which is available to authorized users.

Swaddling and the Risk of Sudden Infant Death Syndrome: A Meta-analysis

CONTEXT

Swaddling is a traditional practice of wrapping infants to promote calming and sleep. Although the benefits and risks of swaddling in general have been studied, the practice in relation to sudden infant death syndrome remains unclear.

OBJECTIVE

The goal of this study was to conduct an individual-level meta-analysis of sudden infant death syndrome risk for infants swaddled for sleep.

DATA SOURCES

Additional data on sleeping position and age were provided by authors of included studies.

STUDY SELECTION

Observational studies that measured swaddling for the last or reference sleep were included.

DATA EXTRACTION

Of 283 articles screened, 4 studies met the inclusion criteria.

RESULTS

There was significant heterogeneity among studies (I(2) = 65.5%; P = .03), and a random effects model was therefore used for analysis. The overall age-adjusted pooled odds ratio (OR) for swaddling in all 4 studies was 1.58 (95% confidence interval [CI], 0.97-2.58). Removing the most recent study conducted in the United Kingdom reduced the heterogeneity (I(2) = 28.2%; P = .25) and provided a pooled OR (using a fixed effects model) of 1.38 (95% CI, 1.05-1.80). Swaddling risk varied according to position placed for sleep; the risk was highest for prone sleeping (OR, 12.99 [95% CI, 4.14-40.77]), followed by side sleeping (OR, 3.16 [95% CI, 2.08-4.81]) and supine sleeping (OR, 1.93 [95% CI, 1.27-2.93]). Limited evidence suggested swaddling risk increased with infant age and was associated with a twofold risk for infants aged >6 months.

LIMITATIONS

Heterogeneity among the few studies available, imprecise definitions of swaddling, and difficulties controlling for further known risks make interpretation difficult.

CONCLUSIONS

Current advice to avoid front or side positions for sleep especially applies to infants who are swaddled. Consideration should be given to an age after which swaddling should be discouraged.

Stakeholders' opinions on the implementation of Child Death Review in the Netherlands

BACKGROUND

The death of a child is an enormous tragedy for both the family and others involved. A child's death appeals to everyone's responsibility to take measures to prevent similar deaths in the future. Child Death Review (CDR) is an interagency approach in which a child's death is systematically analyzed by a multidisciplinary team. The aim of CDR is to identify avoidable factors that give direction to prevention and to improve death statistics. CDR is not yet implemented in the Netherlands. The purpose of this study is to determine Dutch stakeholders' opinions regarding the facilitating and impeding factors in the implementation of CDR in the Netherlands.

METHODS

Four focus groups were conducted: three with professionals who are involved in children's deaths and one with parents who have lost a child under the age of 2 years. The recorded discussions were transcribed and analyzed using Atlas ti. The facilitating and impeding factors were measured using the measurement instrument for determinants of innovations (MIDI). The MIDI identifies facilitating and impeding determinants associated with the innovation, user, organization and social-political context.

RESULTS

Improvement of the quality of (health) care and obtaining a clear explanation for the child's death (user and innovation) were identified as benefits of CDR. The emotional burden for professionals and parents and the time implications were considered to be drawbacks of CDR (user and innovation). The multidisciplinary approach (innovation), parental consent and the use of anonimyzed data (user) were considered as facilitators to implementation. Insufficient information (innovation), potential legal consequences for professionals and organizations (user), insufficient ratification by organizations (organization) and confidentiality (social-political context) were identified as impeding implementation.

CONCLUSIONS

The determinants identified as facilitating and the recommendations provided to overcome the barriers can be used as input for the strategy for implementation of CDR. A pilot study is necessary to determine to what extent the chosen implementation strategy is effective.

[Prediction of growth from an early age: curve matching with the TNO Growth Predictor]

Curve matching is a new big data technique to predict an outcome given earlier measurements. Here we apply curve matching to predict the future growth of a specific child, the target child. The method searches in large datasets of longitudinal growth data for other children who are similar to the target child in terms of factors that influence growth. The observed growth curves of these matched children provide valuable insights into the future growth of the target child. The TNO Groeivoorspeller (TNO Growth Predictor) plots the expected growth of the target child, as well as the uncertainty of the prediction. Curve matching is a general technique that can also be used for other health measures. The key requirement is the availability of relevant longitudinal data on the outcome and its determinants.

Parents' decision for helmet therapy in infants with skull deformation

PURPOSE

Helmet therapy is regularly prescribed in infants with positional skull deformation. Evidence on the effectiveness is lacking, which complicates decision making. This study aims to assess the relation between parents' decision for treatment of skull deformation in their infant and their level of anxiety, decisional conflict, expectations of treatment effect, perceived severity of deformation and perceived side effects.

METHODS

Parents of 5-month-old infants with skull deformation were invited to participate in a survey. Data collection included background characteristics, anthropometric assessment, parent-reported outcomes, decision for treatment (helmet therapy or awaiting natural course), decisional conflict scale and questions about perceived (side) effects of helmet therapy. Factors significantly correlated with treatment decision (p < 0.1) were tested in a multiple logistic regression analysis.

RESULTS

The results of 186 respondents were included in the analysis. Parental satisfaction with their infant's head shape (adjusted odds ratio (aOR) 0.2; 95 % confidence interval (CI) 0.1 to 0.4), expected effect of helmet therapy compared to natural course (aOR 13.4; 95 % CI 5.0 to 36.1) and decision uncertainty (aOR 1.0; 95 % CI 0.9 to 1.0; p = .03) were related to the decision for helmet therapy in infants with skull deformation.

CONCLUSION

With the outcomes of this study, we can better understand parental decision-making for elective 'normalizing' treatments in children, such as helmet therapy in infants with skull deformation. Health care professionals should address the parents' perception of the severity of skull deformation and their expectations of helmet therapy. Furthermore, they can support parents in decision-making by balancing medical information with parents' expectations, values and beliefs.

The excessively crying infant: etiology and treatment

Excessive crying, often described as infantile colic, is the cause of 10% to 20% of all early pediatrician visits of infants aged 2 weeks to 3 months. Although usually benign and self-limiting, excessive crying is associated with parental exhaustion and stress. However, an underlying organic cause is found in less than 5% of these infants. In the majority of cases, treatment consists not of "curing the colic," although usually it is possible to reduce crying, but of helping the parents to get through this challenging period in their baby's development. The aims of this review are to discuss definition, etiology, and evaluate different treatment regimes in infants who cry excessively.

Food avoidance in children with adverse food reactions: influence of anxiety and clinical parameters

BACKGROUND

Many children in the general population avoid food because of self-reported adverse food reactions (AFR). Food avoidance can have negative consequences for well-being and nutritional status. This study aimed to investigate which factors are related to avoidance behavior in children (10-13 yr old) from the general population.

METHODS

Questionnaires for both mother and child were sent to participants from the Europrevall study: 164 children with self-reported AFR and 170 children without AFRs. Spielberger state anxiety and trait anxiety and clinical parameters, such as severity of the adverse reaction, specific IgE and doctor's diagnosis, were compared between those who have (had) AFR and avoid food (i.e., avoiders) and those who have (had) AFR(s) and do not avoid food (anymore; i.e., non-avoiders).

RESULTS

In total, 59% of the children with AFRs avoided food, of whom 26% had positive specific immunoglobulin E (sIgE). Child's state anxiety about an AFR was higher in avoiders than in non-avoiders, (p < 0.001), whereas child's trait anxiety and maternal state anxiety and trait anxiety were comparable in both groups. Avoiders reported more often severe symptoms (i.e., generalized urticaria, respiratory or cardiovascular symptoms) than non-avoiders, (p = 0.03). Food avoidance was not associated with doctor's diagnosis of food allergy or doctor's advice to avoid food (p = 1.00).

CONCLUSION

Food avoidance is related to child's state anxiety about an adverse food reaction. Food avoidance seems to be independent of a doctor's diagnosis of food allergy and advice on food avoidance.

Parental anxiety before and after food challenges in children with suspected peanut and hazelnut allergy

As ingestion of peanut and hazelnut by allergic children is potentially life threatening, parents of these children need to be vigilant about their child's dietary intake. This may cause high levels of anxiety. To assess parental anxiety about food-allergic reaction in their child (state anxiety) and their personal disposition to anxiety (trait anxiety). Parental anxiety was investigated again after food challenges. Fifty-seven children (3-16 yr, mean age 7.2) with suspected peanut or hazelnut allergy (mean specific IgE 20.9) were evaluated by double-blind, placebo-controlled food challenge (DBPCFC). Thirty-two children (56%) developed an allergic reaction. All parents completed the Spielberger State-Trait Anxiety Inventory (STAI) prior to DBPCFC and 2 wk, 3 months and 1 yr thereafter. The mean anxiety scores on these moments were compared with each other and with general Dutch norms. The STAI was also investigated in a group that refused DBPCFC. Prior to DBPCFC, parents had high levels of state anxiety in contrast to a lower trait anxiety compared to the norm group. After DBPCFC, the state anxiety was significantly lower, regardless of a positive or negative outcome (p<or=0.05). The state anxiety was still significant lower after 1 yr (p<or=0.03). The trait anxiety remained unchanged in mothers and slightly decreased in fathers. The state anxiety in the group that refused DBPCFC was comparable to the challenge group, but the trait anxiety was significantly higher (p=0.038). Parents of children with suspected peanut or hazelnut allergy show high levels of anxiety about a food-allergic reaction. After DBPCFC, the anxiety was significantly lower, even in the group with a positive outcome.

Parental perception of weight and weight-related behaviour in 2- to 4-year-old children in the eastern part of the Netherlands

Parental perception of weight status and weight-related behaviour of their toddler was determined through a questionnaire survey in child health care centres (CHCs). Complete data on weight, length, sex and age were available for 635 of 682 children (93.1%). The median age of the children was 37.0 months (range 24-56 months). Of all 635 children, 76.5% were normal weight, 16.2% underweight and 7.2% overweight. Parents' perception of the weight of their child compared with their peers was moderately related to the actual weight status. Of the parents of overweight and underweight children, 87.0% and 89.3%, respectively, were not concerned. Only the parents' perception of the amount of food eaten by their child was significantly related to the weight status. The primary goal of CHC workers should be to create parental awareness in case of their child being overweight or underweight and to support them in accomplishing a healthy lifestyle.

Effect of pediatric physical therapy on deformational plagiocephaly in children with positional preference: a randomized controlled trial

OBJECTIVE

To study the effect of pediatric physical therapy on positional preference and deformational plagiocephaly.

DESIGN

Randomized controlled trial.

SETTING

Bernhoven Hospital, Veghel, the Netherlands.

PARTICIPANTS

Of 380 infants referred to the examiners at age 7 weeks, 68 (17.9%) met criteria for positional preference, and 65 (17.1%) were enrolled and followed up at ages 6 and 12 months.

INTERVENTION

Infants with positional preference were randomly assigned to receive either physical therapy (n = 33) or usual care (n = 32).

MAIN OUTCOME MEASURES

The primary outcome was severe deformational plagiocephaly assessed by plagiocephalometry. The secondary outcomes were positional preference, motor development, and cervical passive range of motion.

RESULTS

Both groups were comparable at baseline. In the intervention group, the risk for severe deformational plagiocephaly was reduced by 46% at age 6 months (relative risk, 0.54; 95% confidence interval, 0.30-0.98) and 57% at age 12 months (0.43; 0.22-0.85). The numbers of infants with positional preference needed to treat were 3.85 and 3.13 at ages 6 and 12 months, respectively. No infant demonstrated positional preference at follow-up. Motor development was not significantly different between the intervention and usual care groups. Cervical passive range of motion was within the normal range at baseline and at follow-up. When infants were aged 6 months, parents in the intervention group demonstrated significantly more symmetry and less left orientation in nursing, positioning, and handling.

CONCLUSION

A 4-month standardized pediatric physical therapy program to treat positional preference significantly reduced the prevalence of severe deformational plagiocephaly compared with usual care.

CLINICAL TRIAL REGISTRATION

isrctn.org Identifier: ISRCTN84132771.

[Overweight and obesity in preschool children (0-4 years): behaviour and views of parents]

OBJECTIVE

Description of unhealthy behaviour and views regarding nutrition, physical exercise and education in families with young children, in relation to specific groups with a high risk of overweight.

DESIGN

Cross-sectional study.

METHOD

In wellbaby clinics for infants and toddlers in various sites in The Netherlands 534 parents were requested to fill in questionnaires on nutrition, physical exercise and education. Enquiry into background characteristics took place and several hypotheses were tested. Using a bivariate and multivariate analysis each hypothesis was examined with regard to linkage of the answers to specific high-risk groups.

RESULTS

73% (390 parents) responded. Overweight was found in 15% of the 2-4-year-olds, this included 3.7% with obesity. Relatively often, parents held views and showed behaviour characteristic of an unhealthy lifestyle for young children. For example, approximately 1 out of 7 families was not used to having breakfast. 43% of the respondents considered sweetened milk products approprite substitutes for milk and 39% of the children always had soft drinks at their disposal. One fifth of the parents indicated that they did not have enough time to go out with their child. Approximately 1 out of 10 toddlers aged 2-4 years had a TV in their own room; 22% were allowed to determine whether they wanted to watch TV or not and 9% were allowed to decide how long they watched. Such specific high-risk behaviour was seen in particular in families with non-western mothers, mothers with a low level of education or mothers living on social security. Regular use of child care or a nursery seemed to have some protective effect.

CONCLUSION

In families with children aged 0-4 years, behaviour patterns related to overweight at a later age were frequently observed. In view of the increased incidence of overweight and obesity in young children, initiation of research aimed at optimisation of education is warranted, which should include special attention for the behaviour of parents with regard to 5 spearheads: breast-feeding, more outside play and more physical exercise, a regular wholesome breakfast, less consumption of sweetened drinks and less TV and computer use. Implementation of interventions in young age groups is able to prevent the development of unhealthy lifestyle and childrearing styles.

Swaddling: a systematic review

Swaddling was an almost universal child-care practice before the 18th century. It is still tradition in certain parts of the Middle East and is gaining popularity in the United Kingdom, the United States, and The Netherlands to curb excessive crying. We have systematically reviewed all articles on swaddling to evaluate its possible benefits and disadvantages. In general, swaddled infants arouse less and sleep longer. Preterm infants have shown improved neuromuscular development, less physiologic distress, better motor organization, and more self-regulatory ability when they are swaddled. When compared with massage, excessively crying infants cried less when swaddled, and swaddling can soothe pain in infants. It is supportive in cases of neonatal abstinence syndrome and infants with neonatal cerebral lesions. It can be helpful in regulating temperature but can also cause hyperthermia when misapplied. Another possible adverse effect is an increased risk of the development of hip dysplasia, which is related to swaddling with the legs in extension and adduction. Although swaddling promotes the favorable supine position, the combination of swaddling with prone position increases the risk of sudden infant death syndrome, which makes it necessary to warn parents to stop swaddling if infants attempt to turn. There is some evidence that there is a higher risk of respiratory infections related to the tightness of swaddling. Furthermore, swaddling does not influence rickets onset or bone properties. Swaddling immediately after birth can cause delayed postnatal weight gain under certain conditions, but does not seem to influence breastfeeding parameters.

Risk factors for deformational plagiocephaly at birth and at 7 weeks of age: a prospective cohort study

OBJECTIVE

The purpose of this work was to identify risk factors for deformational plagiocephaly within 48 hours of birth and at 7 weeks of age.

PATIENTS AND METHODS

This was a prospective cohort study in which 380 healthy neonates born at term in Bernhoven Hospital in Veghel were followed at birth and at 7 weeks of age. Data regarding obstetrics, sociodemographics, asymmetry of the skull, anthropometrics, motor development, positioning, and care factors related to potentially provoking deformational plagiocephaly were gathered, with special interest for putative risk factors. The main outcome measure at birth and at 7 weeks of age was deformational plagiocephaly, assessed using the plagiocephalometry parameter oblique diameter difference index, a ratio variable, calculated as the longest divided by the shortest oblique diameter of the skull x 100%. A cutoff point of > or = 104% was used to indicate severe deformational plagiocephaly.

RESULTS

Only in 9 of 23 children who presented deformational plagiocephaly at birth was deformational plagiocephaly present at follow-up, whereas in 75 other children, deformational plagiocephaly developed between birth and follow-up. At birth, 3 of 14 putative risk factors were associated with severe flattening of the skull: gender, birth rank, and brachycephaly. At 7 weeks of age, 8 of 28 putative risk factors were associated with severe flattening: gender, birth rank, head position when sleeping, position on chest of drawers, method of feeding, positioning during bottle-feeding, and tummy time when awake. Early achievement of motor milestones was a protective factor for developing deformational plagiocephaly. Deformational plagiocephaly at birth was not a predictor for deformational plagiocephaly at 7 weeks of age. There was no significant relation between supine sleeping and deformational plagiocephaly.

CONCLUSIONS

Three determinants were associated with an increased risk of deformational plagiocephaly at birth: male gender, first-born birth rank, and brachycephaly. Eight factors were associated with an increased risk of deformational plagiocephaly at 7 weeks of age: male gender, first-born birth rank, positional preference when sleeping, head to the same side on chest of drawers, only bottle feeding, positioning to the same side during bottle feeding, tummy time when awake < 3 times per day, and slow achievement of motor milestones. This study supports the hypothesis that specific nursing habits, as well as motor development and positional preference, are primarily associated with the development of deformational plagiocephaly. Earlier achievement of motor milestones probably protects the child from developing deformational plagiocephaly. Implementation of practices based on this new evidence of preventing and diminishing deformational plagiocephaly in child health care centers is very important.

Should pacifiers be recommended to prevent sudden infant death syndrome?

OBJECTIVES

Our aim was to review the evidence for a reduction in the risk of sudden infant death syndrome (SIDS) with pacifier ("dummy" or "soother") use, to discuss possible mechanisms for the reduction in SIDS risk, and to review other possible health effects of pacifiers.

RESULTS

There is a remarkably consistent reduction of SIDS with pacifier use. The mechanism by which pacifiers might reduce the risk of SIDS is unknown, but several mechanisms have been postulated. Pacifiers might reduce breastfeeding duration, but the studies are conflicting.

CONCLUSIONS

It seems appropriate to stop discouraging the use of pacifiers. Whether it is appropriate to recommend pacifier use in infants is open to debate.

Infant care practices related to cot death in Turkish and Moroccan families in the Netherlands

From 1979 to 1993 Turkish infants had a significantly higher cot death risk compared to Dutch infants. In contrast Moroccan infants had a risk of cot death that was approximately three times lower compared to Dutch infants during the same period. This study shows that these differences have disappeared, while differences still exist in infant care practices between these ethnic groups. At 28 well-baby clinics, questionnaires were distributed for this sample selection. The response was 82%. Data were collected on 55 Turkish, 54 Moroccan, and 210 Dutch families. Less than 7% of these three ethnic groups still placed infants in the prone position. Moroccan mothers hardly smoked. Turkish people used pillows and Moroccan people used soft mattresses more often. Moroccan families practised swaddling more widely. Length of maternal residence influenced some care giving practices. As a result of this study, subgroup specific intervention campaigns for safe sleeping can be developed for Turkish and Moroccan families.

Dummy use, thumb sucking, mouth breathing and cot death

In the Netherlands a case control study into cot death was undertaken as part of the European Concerted Action on sudden infant death syndrome. Children between 1 week and 2 years of age who died suddenly and unexpectedly were reported. Non cot death cases were excluded after a consensus by three pathologists. The study comprised 73 cot death cases and two controls per case, matched for date of birth. Compared to national data, the coverage was 91%. We investigated whether in the Netherlands new risk or preventive factors might have emerged. The present report focuses on the relative risks of dummy use, thumb sucking, breast versus bottle feeding, and sleeping with the mouth open.

CONCLUSION

Dummy use seems to be an important preventive factor for cot death in the Netherlands, independent of other risk factors such as prone sleeping and bedding. We recommend dummy use at least for bottle-fed infants. We found no indication that dummies influence the frequency or duration of breast feeding but more data are needed. Mouth breathing appears to be associated with an increased risk for cot death, but again further research is needed.

Sudden unexpected death in infancy: epidemiologically determined risk factors related to pathological classification

Infants that died suddenly and unexpectedly were studied as part of the European Concerted Action on sudden infant death syndrome (SIDS). Three paediatric pathologists, first independently of each other and later in a consensus meeting, classified 63 cases into 3 groups: SIDS (19 cases), borderline SIDS (30 cases) and non-SIDS (14 cases). The interobserver agreement among the pathologists before the consensus meeting was moderate (Kappa = 0.41) and jointly it was higher (Kappa = 0.83). The distribution of epidemiologically determined risk factors was studied over these three groups. Maternal smoking after birth, low socioeconomic status and thumb sucking were found more often in SIDS than in the other cases. Inexperienced prone sleeping was a determinant for SIDS, but not for non-SIDS. Previous hospital admission, low birthweight and/or short gestation were associated with borderline SIDS. Non-SIDS cases received more breastfeeding, the parents hardly smoked during pregnancy and after birth, a firm mattress had been used, and more often signs of illness had been reported by the parents, compared with the SIDS and borderline SIDS cases. Bedding factors and both primary and secondary prone sleeping were equally distributed over the three groups which supports the hypothesis that, in SIDS and borderline SIDS, as well as in non-SIDS cases, some similar external and preventable factors might influence the events leading to death. Research should therefore focus on all sudden unexpected deaths, after which subgroups such as SIDS cases can be separately analysed. The postmortem is an essential part of the whole work-up of each case and the results should be interpreted with all other available data to arrive at a sound evaluation of cases and thus form the basis for the prevention of all sudden unexpected infant death.

Risk and preventive factors for cot death in The Netherlands, a low-incidence country

In the Netherlands an 18 months case control study into cot death was undertaken as part of the European Concerted Action (ECAS) on sudden infant death syndrome to determine the relative risk of prone sleeping and other sleep practices. Physicians in the Netherlands were asked to report to the study centre all sudden and unexpected deaths of children between 1 week and 2 years of age. Non cot death cases were deleted from further analysis after a consensus was reached by three pathologists, not primarily involved in the post mortem diagnosis. A positive response of families was achieved in 91% of cases registered in the Central Bureau of Statistics. The study comprised 73 cot deaths and 146 controls, two for each case and matched for date of birth. All families were visited at home for completion of a questionnaire. The cot death rate has dropped considerably over the past 10 years after the recommendations on supine sleeping to a low of 0.26 per 1000 live born infants. In addition to the ECAS objective, we wanted to establish whether previously found risk factors are still valid in the present situation or that new factors might have emerged, some of them possibly protective.

CONCLUSION

Placing an infant prone or on side on last occasion, secondary prone position (not placed prone but turned to prone), inexperienced prone sleeping and use of a duvet, leading to head and body being covered, were shown to be risk factors. Preventive factors were using a cotton sleeping-sack and a dummy. Even in a low incidence country, such as the Netherlands, there are indications that further prevention is possible.