Ethnic Variation in Oral Cleft Occurrence in Denmark 1981–2002

2014 ◽  
Vol 51 (6) ◽  
pp. 677-685
Author(s):  
Grete Skøtt Pedersen ◽  
Dorthe Almind Pedersen ◽  
Laust Hvas Mortensen ◽  
Anne-Marie Nybo Andersen ◽  
Kaare Christensen
Keyword(s):  
Cleft Lip ◽  
Country Of Origin ◽  
Population Based ◽  
Foreign Born ◽  
Danish Population ◽  
Oral Cleft ◽  
Birth Prevalence ◽  
World Region ◽  
Live Births ◽  
Medical Birth Register

Objective To examine differences in oral cleft (OC) occurrence based on maternal only and parental country of origin in Denmark from 1981 to 2002. Methods Data on all live births from the Danish Medical Birth Register from 1981 to 2002 were linked with the Danish Facial Cleft Database. Cleft cases were categorized into isolated and nonisolated cleft lip with or without palate (CL/P) and cleft palate only (CP). Birth prevalence was calculated as cases per 1,000 live born children by maternal country of origin, world region, and mixed parental groups. Results We identified 3094 OC cases among 1,319,426 live births. Danish-born women had an OC birth prevalence of 2.38 with a 95% confidence interval (CI) (2.29–2.47) and foreign-born women a significant lower prevalence of 2.01 (CI, 1.77–2.27). This difference was explained by a lower isolated CL/P birth prevalence among foreign-born women of 0.97 (CI, 0.81–1.16) versus 1.35 (CI, 1.28–1.41). No significant differences were seen for the remaining subtypes. Parents with the same foreign country of origin had a lower overall OC (1.63; CI, 1.35–1.94) and isolated CL/P (0.76; CI, 0.57–0.99) birth prevalence than Danish-born parents. This was not the case for any of the mixed parental groups. Overall and subtype prevalence rates varied according to maternal categories of world region. Conclusion In this study we found differences in OC occurrence among all live births in the Danish population based on maternal country of origin from 1981 to 2002. Danish-born women had higher OC and isolated CL/P birth prevalence compared with foreign-born women.

Asian Oral-Facial Cleft Birth Prevalence

2006 ◽  
Vol 43 (5) ◽  
pp. 580-589 ◽  
Author(s):  
Margaret E. Cooper ◽  
Jessica S. Ratay ◽  
Mary L. Marazita
Keyword(s):  
Literature Review ◽  
Cleft Palate ◽  
Live Birth ◽  
Cleft Lip ◽  
Population Based ◽  
Prevalence Rates ◽  
Birth Prevalence ◽  
Live Births ◽  
Asian Populations ◽  
Apparent Reason

Objective: To determine the clefting birth prevalence among Asian populations, specifically Chinese and Japanese, using raw counts from nonoverlapping published studies of Asian populations, and to investigate whether Asian clefting rates have been interpreted accurately as being up to twice the Caucasian rate. Design: A literature review of articles giving raw counts of clefting in Asian populations, primarily Japanese and Chinese. Main Outcome Measures: Where possible, clefts were identified by the patients’ ethnicity, country of origin, cleft type, syndromic status, and birth status. Results: Prevalence rates of cleft lip with or without cleft palate per 1000 live births are reported. Syndromic plus nonsyndromic cleft lip with or without cleft palate: Chinese, 1.30; Japanese, 1.34; Other Asian, 1.47; and total, 1.33. Nonsyndromic cleft lip with or without cleft palate: Chinese, 1.20; Japanese, 1.18; Other Asian, 1.22; and total, 1.19. Conclusions: Overall, Chinese and Japanese live birth prevalence rates for nonsyndromic cleft lip with or without cleft palate, based on the published reports of birth prevalence, are significantly lower than the oft-quoted rate of 2 per 1000 for Asians. The apparent reason for the discrepancy is that many published prevalence rates included all pregnancies (live births plus pregnancy losses) and do not distinguish between syndromic and nonsyndromic clefts or between cleft palate alone and cleft lip with or without cleft palate. These results demonstrate that it is extremely important for current population-based studies of clefts to include careful delineation of population groups, syndromes, cleft type, and birth status.

scholarly journals Folic acid supplements and risk for oral clefts in the newborn: a population-based study

2015 ◽  
Vol 114 (9) ◽  
pp. 1456-1463 ◽  
Author(s):  
Trude Gildestad ◽  
Tone Bjørge ◽  
Stein Emil Vollset ◽  
Kari Klungsøyr ◽  
Roy Miodini Nilsen ◽  
...  
Keyword(s):  
Folic Acid ◽  
Cleft Palate ◽  
Cleft Lip ◽  
Population Based ◽  
Vitamin Supplement ◽  
Birth Registry ◽  
Oral Clefts ◽  
Birth Prevalence ◽  
Live Births ◽  
Relative Risks

AbstractResults from previous studies on maternal folic acid intake and infant oral clefts are inconclusive. The aim of the present study was to investigate the association between women’s use of folic acid and/or multivitamin supplements and the risk for oral cleft in the newborn. We used data from the Medical Birth Registry of Norway based on all births in Norway from 1999 to 2013. A total of 528 220 women had 880 568 pregnancies, resulting in 896 674 live births and stillbirths, of which 1623 had oral clefts (isolated oral clefts, n 1311; non-isolated oral clefts, n 312). Altogether, 21·5 % of women were vitamin supplement users before pregnancy. The birth prevalence of oral clefts was 1·81/1000 live births and stillbirths. Relative risks (RR) were estimated with log-binomial regression. For pregnancies with maternal use of vitamins, the adjusted RR for clefts overall was 0·90 (95 % CI 0·79, 1·04). The adjusted RR for cleft palate only (n 586) was 0·84 (95 % CI 0·66, 1·06) and that for cleft lip with or without cleft palate (n 1037) was 0·94 (95 % CI 0·79, 1·13). Associations were stronger for cleft cases that occurred in combination with other malformations (adjusted RR 0·63; 95 % CI 0·45, 0·88), although vitamin supplements provided no protection against isolated clefts (adjusted RR 0·98; 95 % CI 0·84, 1·15). In conclusion, our study demonstrates no statistically significant association between vitamin use and isolated oral clefts. However, we found lower risk for oral clefts that occurred in combination with other malformations.

Birth Prevalence of Cleft Lip and Palate in Northern Ireland (1981 to 2000)

2008 ◽  
Vol 45 (2) ◽  
pp. 141-147 ◽  
Author(s):  
T. A. Gregg ◽  
A. G. Leonard ◽  
C. Hayden ◽  
K. E. Howard ◽  
C. F. Coyle
Keyword(s):  
Northern Ireland ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Population Based ◽  
Prevalence Rates ◽  
Sex Distribution ◽  
Orofacial Clefts ◽  
Birth Prevalence ◽  
Live Births ◽  
The Past

Objective: The prevalence of cleft lip and/or palate (CL/P) in Northern Ireland (NI) was last reported for 1980 through 1990. This study was undertaken to update the prevalence of CL/P in NI for the 20-year period 1981 to 2000, to determine the pattern of prevalence, and to report the proportion of different cleft types and sex distribution. Design: Retrospective, population-based analysis. Patients/participants: All live born children with CL/P in NI from 1981 to 2000 were included. A total of 750 cases were identified. Resident births outside NI, stillbirths, abortuses, and children born with atypical orofacial clefts were excluded. Those with syndromes and submucous clefts were included in the study. Results: The overall prevalence of children born with CL/P within NI for the period 1981 to 2000 was 1.47 per 1000 live births, or 1:682. This was consistent with the findings reported by other U.K. studies. There were no significant changes in the prevalence rates over any 5-year period. No significant seasonality trends were noted. Clefts of the palate only were always in the majority. More boys than girls were affected by cleft lip with or without cleft palate. There was a significant left-sided predilection for unilateral clefting of the lip. Conclusions: There have been no significant changes in the birth prevalence of children born with CL/P or the distribution or laterality of cleft type in the NI population during the past 20 years.

Birth Prevalence of Oral Clefting in Northern Iran

2007 ◽  
Vol 44 (4) ◽  
pp. 378-380 ◽  
Author(s):  
Mohammad Jafar Golalipour ◽  
Arezo Mirfazeli ◽  
Naser Behnampour
Keyword(s):  
Cleft Palate ◽  
Cleft Lip ◽  
Birth Date ◽  
Northern Iran ◽  
Oral Clefts ◽  
Oral Cleft ◽  
Birth Prevalence ◽  
Parental Consanguinity ◽  
Live Births ◽  
Isolated Cleft Palate

Objective: To explore the prevalence of oral clefting in northern Iran. Setting: In the Dezyani hospital 37,951 live births from 1998 through 2003 were screened for oral clefts. Clinical and demographic factors of diagnosed cases, including birth date, ethnicity, type of oral cleft, parental consanguinity, and coexisting anomalies, were recorded for analysis. Results: The overall prevalence of oral clefting was 0.97 per 1000 live births. The prevalence of cleft lip with or without cleft palate and isolated cleft palate was 0.60 and 0.37 per 1000, respectively. The prevalence of oral clefting was 1.08 per 1000 male births and 0.86 per 1000 female births. With respect to parental ethnicity, the prevalence of oral clefting was 0.86, 0.88, and 1.47 per 1000 in Fars, Turkman, and Sistani, respectively. Conclusions: The prevalence of oral cleft among live births in the Dezyani hospital is similar to that reported in the previous studies for Iran and whites.

Socioeconomic Status and Orofacial Clefts in Scotland, 1989 to 1998

2003 ◽  
Vol 40 (5) ◽  
pp. 481-485 ◽  
Author(s):  
J. D. Clark ◽  
P. A. Mossey ◽  
L. Sharp ◽  
J. Little
Keyword(s):  
Risk Factors ◽  
Socioeconomic Status ◽  
Cleft Lip ◽  
Population Based ◽  
Orofacial Clefts ◽  
Smoking During Pregnancy ◽  
Live Births ◽  
Strong Positive Relationship ◽  
The Relationship ◽  
Deprived Areas

Objective The purpose of this study was to investigate the association between socioeconomic status and orofacial clefts (OFC) in Scotland. Design Study of prevalence at birth over a 10-year period using an area-based measure of material deprivation. Setting Population-based study throughout Scotland. Participants Eight hundred thirty-four live births with OFC born between January 1, 1989, and December 31, 1998, ascertained from the nationwide register of the Cleft Service in Scotland, compared with the total 603,825 live births in Scotland in this period. Results There was a strong positive relationship whereby the prevalence of OFC at birth increased with increasing deprivation. This trend was statistically significant for cleft lip and/or palate (CL[P]: p = .016) but not for cleft palate (CP; p = .078). For each type of cleft, the relative risk among those resident in the most deprived areas, compared with those resident in the least deprived areas, was 2.33. Conclusions The association between OFC and socioeconomic status is consistent with a report for an earlier period in a smaller part of Scotland. Unlike the earlier study, this pattern appears to be stronger for CL(P) than for CP. These observations do not appear to be an artifact of recording. It is possible that they reflect the association between deprivation and risk factors for OFC, most likely tobacco smoking during pregnancy. Because the relationship between OFC and socioeconomic status appears to have been virtually unstudied in other populations, it would be valuable to investigate this relationship elsewhere and determine whether known risk factors account for the relationship.

scholarly journals Gastroschisis in Finland 1993 to 2014—Increasing Prevalence, High Rates of Abortion, and Survival: A Population-Based Study

2019 ◽  
Vol 30 (06) ◽  
pp. 536-540
Author(s):  
Arimatias Raitio ◽  
Asta Lahtinen ◽  
Johanna Syvänen ◽  
Teemu Kemppainen ◽  
Eliisa Löyttyniemi ◽  
...  
Keyword(s):  
Infant Mortality ◽  
Live Birth ◽  
Survival Rates ◽  
Population Based ◽  
Good Prognosis ◽  
Associated Anomalies ◽  
Population Based Study ◽  
Birth Prevalence ◽  
Live Births ◽  
Total Prevalence

Abstract Introduction The study aims to assess the changes in prevalence and mortality of gastroschisis, and to identify associated anomalies. Materials and Methods It is a population-based nationwide study. All gastroschisis cases were identified in the Finnish Register of Congenital Malformations and the Care Register for Health Care from 1993 to 2014 including live births, stillbirths, and terminations of pregnancy due to fetal anomalies. Associated anomalies were recorded, and analyzed, and prevalence and infant mortality were calculated. Results There were 320 cases of gastroschisis; 235 (73%) live births, 16 (5%) stillbirths, and 69 (22%) terminations of pregnancy. Live birth prevalence of gastroschisis in Finland was lower than generally reported (1.73 in 10,000). However, due to relatively high rates of abortion, our total prevalence of 2.57/10,000 was similar with other reports. The most common risk factor was young maternal age. Babies with gastroschisis were born prematurely, on average on the 36th week and most are delivered by caesarean section. There was a significant increasing trend in live birth prevalence (p = 0.0018). Overall infant mortality was 7.7% (18/235), 7.2% (16/222) in simple gastroschisis and 15% (2/13) in complex gastroschisis. Associated anomalies were rare both in aborted fetuses and neonates, and there was only one case with a chromosomal abnormality. Conclusion Gastroschisis is usually an isolated anomaly with increasing birth prevalence and excellent survival rates. Regardless of the good prognosis, the abortion rates in Finland are higher than previously reported, and we hypothesize this to be due to lack of appropriate antenatal counselling.

Analysis of the Prevalence and Incidence of Cleft Lip and Palate in Colombia

2019 ◽  
Vol 57 (5) ◽  
pp. 552-559 ◽  
Author(s):  
Rengifo Reina Herney Alonso ◽  
Guarnizo Peralta Stefany Brigetty
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Oral Clefts ◽  
Birth Prevalence ◽  
Administrative Records ◽  
Live Births ◽  
Population Prevalence ◽  
The Individual

Objective: To analyze the population prevalence and birth prevalence of oral clefts in Colombia from 2009 to 2017. Methods: A cross-sectional study using information from the National Administrative Records of Colombia. The data came from 2 types of administrative records (Surveillance System and the Individual Registry of Service Provision) and the oral health national survey. Population prevalence and birth prevalence by type of cleft lip and/or cleft (CL/P) ratios were calculated using Poisson distribution for count data and to assess stationary tests on time series (Dickey-Fuller) and (Phillips-Perron) was used. Results: Population prevalence in Colombia was 3.27 per 10 000 inhabitants (95% confidence interval [CI], 3.21-3.32) and birth prevalence was 6.0 per 10 000 live births (95% CI, 5.67-6.35). Bogotá have the highest population prevalence with CL/P. In the analysis of trends for the prevalence proportion by type of clefts in newborn babies with cleft, it was observed that the highest proportion was for babies with CLP. Cleft lip (CL) has increased from 17.4% in 2014 to 34.2% in 2017, cleft palate (CP) has decreased from 32.9% to 20.2%; and CLP changed from 49.6% to 45.5% in the same period. Conclusions: The population prevalence was 3.27 per 10 000 inhabitants. Births prevalence was 6.0 per 10 000 live births, and Orinoquia and Amazonia have higher rates than the national average. The administrative registers are adequate systems to know the behavior of oral clefts. The CL/P had a nonstationary trend during the period 2014 to 2017.

scholarly journals Female and Male Differences in Academic Achievement in Individuals With Cleft

2017 ◽  
Vol 55 (2) ◽  
pp. 196-203 ◽  
Author(s):  
Martin Persson ◽  
Magnus Becker ◽  
Amy L. Conrad ◽  
Henry Svensson
Keyword(s):  
Academic Achievement ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Population Based ◽  
Male Population ◽  
Compulsory School ◽  
Female Population ◽  
Grade Point ◽  
Medical Birth Register ◽  
Significant Difference

Objective: The focus of this study was to determine if there is any significant difference in academic achievement for girls and boys with a cleft compared to the general population of Swedish students at graduation from compulsory school. Design: A retrospective population-based study using data obtained from the Swedish Medical Birth Register that was linked to the Swedish School–Grade Register. Participants: Two hundred seventy girls and 241 boys with cleft palate (CP), 222 girls and 429 boys with cleft lip (CL), and 299 girls and 531 boys with cleft lip and palate (CLP) were compared with the compulsory school population comprising 609,397 girls and 640,007 boys. Main Outcome Measures: (1) Odds of receiving the lowest grade and reduced odds in receiving high grades in Mathematics, English, and Swedish. (2) grade point average (GPA). Results: In all 3 subject grades, for boys with cleft there was no difference when compared to the male population. Girls with cleft were similar to their peers with a few exceptions. Girls with CLP had lower Math grades, and girls with CP had lower Math, English, and Swedish grades. Girls with CP and CLP achieved a significantly lower GPA in comparison to the female population and boys with CP and CL achieved lower GPAs in comparison to the male population. Conclusions: This study indicates that educational outcomes for girls with cleft are more negatively affected than for boys with cleft.

Prevalence and Characteristics of Non-Syndromic Orofacial Clefts and the Influence of Consanguinity

2014 ◽  
Vol 38 (3) ◽  
pp. 241-246 ◽  
Author(s):  
NM Alamoudi ◽  
H J Sabbagh ◽  
NPT Innes ◽  
D El Derwi ◽  
AZ Hanno ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Cleft Palate ◽  
Cleft Lip ◽  
Orofacial Cleft ◽  
Prospective Surveillance ◽  
Orofacial Clefts ◽  
Birth Prevalence ◽  
Live Births ◽  
Jeddah City ◽  
The Relationship

The Objective of this study was to identify the prevalence and describe the characteristics of non-syndromic orofacial cleft (NSOFC) in Jeddah, Saudi Arabia and examine the influence of consanguinity. Study Design: Six hospitals were selected to represent Jeddah's five municipal districts. New born infants with NSOFC born between 1st of January 2010 to 31st of December 2011 were clinically examined and their number compared to the total number of infants born in these hospitals to calculate the prevalence of NSOFC types and sub-phenotypes. Referred Infants were included for the purpose of studying NSOFC characteristics and their relationship to consanguinity. Information on NSOFC infants was gathered through parents’ interviews, infants’ files and patient examinations. Results: Prospective surveillance of births resulted in identifying 37 NSOFC infants born between 1st of January 2010 to 31st of December 2011 giving a birth prevalence of 0.80/1000 living births. The total infants seen, including referred cases, were 79 children. Consanguinity among parents of cleft palate (CP) cases was statistically higher than that among cleft lip with or without cleft palate (CL/P) patients (P=0.039). Although there appears to be a trend in the relationship between consanguinity and severity of CL/P sub-phenotype, it was not statistically significant (P= 0.248). Conclusions: Birth prevalence of NSOFC in Jeddah City was 0.8/1000 live births with CL/P: 0.68/1000 and CP: 0.13/1000. Both figures were low compared to the global birth prevalence (NSOFC: 1.25/1000, CL/P: 0.94/1000 and CP: 0.31/1000 live births). Consanguineous parents were statistically higher among CP cases than among other NSOFC phenotypes.

scholarly journals Population-Based Study of Birth Prevalence and Factors Associated with Cleft Lip and/or Palate in Taiwan 2002–2009

PLoS ONE ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. e58690 ◽  
Author(s):  
Ruoh-Lih Lei ◽  
Huey-Shys Chen ◽  
Bao-Yuan Huang ◽  
Yueh-Chih Chen ◽  
Philip Kuo-Ting Chen ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Population Based ◽  
Population Based Study ◽  
Birth Prevalence ◽  
Factors Associated
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