1.Maternal mid-upper arm circumference as a predictor of low birth weight outcome among newborn deliveries of adolescents in a tertiary level hospital
Avegail M. Cardinal ; Vanessa-maria F. Torres-ticzon ; Ma. Emma Alensa-llanto
Acta Medica Philippina 2025;59(2):62-71
BACKGROUND
Maternal malnutrition is a major cause of low birth weight (LBW) newborn outcome especially among adolescent mothers. It is one of the key drivers of child stunting and initiates the vicious cycle of intergenerational malnutrition. The body mass index prior to pregnancy or at the initial trimester is currently being used to establish the desired weight gain throughout pregnancy. However, Filipino adolescents often delay their first antenatal visit at a later stage of pregnancy. Without a baseline weight, the establishment of appropriate weight gain and nutritional status is often challenging. Mid-upper arm circumference (MUAC) was proven to be a good proxy measure of acute malnutrition, however, there was no global consensus on what MUAC cut-off point to use to identify pregnant adolescents at risk for delivering LBW babies. Finding the optimal cut-off could facilitate early identification and intervention of pregnant adolescents who are nutritionally at risk and could eventually break the cycle of intergenerational malnutrition.
OBJECTIVESThe study aims to determine the association of maternal MUAC and the birth weight outcomes among newborn deliveries of adolescents in a tertiary hospital for a period of six months and to identify the optimal maternal MUAC cut-off point that can be used to predict low birth weight outcome among newborn deliveries of adolescents in a tertiary hospital.
METHODSA cross-sectional study was conducted among adolescents ages 10 to 19 years who delivered babies in a tertiary hospital in the Philippines for a period of six months. Maternal MUAC and LBW outcome were documented, and their association was determined using a logistic regression analysis. To measure diagnostic accuracy, the sensitivity, specificity, and the area under the curve were taken for each MUAC point. A receiver operating characteristic (ROC) curve was used to aid the MUAC cut-off determination.
RESULTSOut of 237 newborn deliveries, 35% were noted with low birth weight while 65% had normal birth weight. Most of the mothers were in their late adolescence at 78%. The crude association for the MUAC cut-offs ≤23.00 cm, ≤23.50 cm, and ≤24.00 cm and LBW showed a significant value of 2.19, 2.25, and 2.39 at 95% CI, respectively. However, it is only the cut-off ≤24.00 cm that showed significant results for adjusted association by the logistic regression analysis. The MUAC cut-off ≤24.00 cm also showed a better trade-off value between the sensitivity and specificity. Furthermore, the optimal maternal MUAC measurement that predicts LBW newborn outcome points to ≤24.00 cm cut-off based on the ROC curve.
CONCLUSIONThis study shows that the maternal MUAC is predictive of LBW outcome among adolescent deliveries.A MUAC cut-off of ≤24.00 cm was superior to lower cut-offs studied. The pregnant adolescents might need a higher MUAC cut-off than adults to allow timely intervention and prevention of poor neonatal outcomes. By doing this simple screening test, suspected pregnant adolescents can be easily identified and referred for further confirmatory testing.
Human ; Child: 6-12 Yrs Old ; Adolescent: 13-18 Yrs Old ; Pregnancy In Adolescence ; Infant, Low Birth Weight ; Adolescent Mothers
2.Experiences of unwanted pregnancy among adolescent mothers aged 12 to 15 years old: An interpretative phenomenological analysis
Andrea Bonife R. Ibañ ; ez ; Berlie Gamaliel M. Yap
Philippine Journal of Health Research and Development 2025;29(1):20-22
INTRODUCTION
Adolescent pregnancy is enduringly perceived as posing a considerable social threat in the Philippines. Recent data from the Commission on Population and Development shows that over 40,000 births annually are from adolescent mothers aged 10 to 14 years, with many of these early pregnancies potentially linked to rape, forced sex, and abuse. Most studies in the past focus on causes and prevention. Limited research explores the lived experiences of early adolescent mothers, especially in the context of unwanted pregnancies.
OBJECTIVEThis study was conducted to determine the lived experiences of unwanted pregnancy among early adolescents age 12 to 15 years old in Zamboanga City.
METHODOLOGYThe study employed an Interpretative Phenomenological Study Design which involved understanding how the adolescents make sense of events, emotions, and interactions in their experiences. Ten (10) adolescent girls with experience of unwanted pregnancy were interviewed.
RESULTSAnalysis of transcripts generated three superordinate themes: (1) Living in the challenges of the present, (2) Facing the future with resilience, (3) Escaping the past. After identifying similarities across cases, two cross-case themes were generated: (1) Dysfunctional family background as a contributor to early pregnancy, and (2) The importance of relying on significant others for support.
CONCLUSIONThe study revealed that unwanted pregnancies were influenced by dysfunctional family environments, socioeconomic challenges, and, in some cases, sexual exploitation. The participants faced emotional distress, financial instability, and social stigma, with support from family playing a critical role in the coping process. Despite the initial adversity, participants demonstrated resilience, finding ways to endure, adapt, and thrive.
Human ; Female ; Child: 6-12 Yrs Old ; Adolescent: 13-18 Yrs Old ; Adolescent Pregnancy ; Pregnancy In Adolescence
4.Familial factors associated with adolescent pregnancy in San Juan City
Health Sciences Journal 2025;14(1):1-11
INTRODUCTION
One significant challenge facing the Filipino youth today is adolescent pregnancy, as the nation having one of the highest rates of adolescent births rates in the ASEAN region. Various sociocultural, economic, and individual factors have been identified as contributing factors. However, the impact of family, including maternal intergenerational factors, has yet to be substantially explored. This study aimed to investigate the root cause of adolescent pregnancy in San Juan city through the identification and examination of common familial factors.
METHODSThis was an unmatched case-control study with a 1:2 ratio using a non-probability sampling. It included two groups of adolescent females: pregnant/ever pregnant and non-pregnant) aged 13 to 19. A three-part modified questionnaire was used to collect the data and was administered through a faceto-face interview.
RESULTSThis study revealed that adolescent women in grandparent-headed families are 4.47 (CI: 1.33, 15.0) times more likely to be pregnant as adolescents compared to the reference group. Adolescents with low educational attainment among their fathers and mothers are 4.25 (CI: 1.80, 10.10) and 3.30 (CI: 1.58, 6.93) times more likely to get pregnant, respectively. Additionally, if a mother is unemployed, they were 1.89 (CI: 1.09, 3.30) times more likely to get pregnant, and if their mother passed away, they were 4.24 (CI: 1.03, 17.42) times more likely to experience pregnancy. Moreover, they are 7.69 (CI: 4.21, 14.02) and 9.07 (CI: 2.74, 30.03) times more likely to get pregnant if their mother and sister have a history of adolescent pregnancy. There was also a significant association found between severe family dysfunctionality (p=0.0430) and adolescent pregnancy. Cases were 8.33 times less likely to have a severely dysfunctional family than controls.
CONCLUSIONA statistically significant association was found between adolescent pregnancy and several familial factors, including exposure to a grandparent-headed family structure, low parental educational attainment, maternal unemployment, maternal death, and a family history of early pregnancy involving the mother or an older sister. While moderate family dysfunction was also associated, this relationship was not statistically significant.
Human ; Female ; Adolescent Pregnancy ; Pregnancy In Adolescence
5.Clinical outcomes of teenage pregnant women with gestational diabetes mellitus (GDM) at a Tertiary Hospital in Quezon City
Vernie M. Piodos ; Cecilia A. Jimeno
Philippine Journal of Internal Medicine 2024;62(4):196-203
OBJECTIVES
This study aimed to determine the maternal and fetal effects of hyperglycemia, and to compare the clinical outcomes between pregnant teenagers and adult women with gestational diabetes mellitus (GDM).
METHODOLOGYThis was a retrospective cohort study among pregnant women who tested positive for GDM by 75-gram oral glucose tolerance test (OGTT). Data was collected from the 1st of January 2015 to the 31st of December 2019. Maternal and fetal outcomes and the factors associated with maternal and neonatal outcomes among teenage women and adult women with GDM were studied.
RESULTSA total of 254 charts of women with GDM were reviewed. Overall, adverse maternal outcomes were found in 94.12% and 90% of teenage and adults, respectively; and were almost more likely among primigravida (OR=3.984, CI=1.32-12, p=0.014). The study also showed less probability of having adverse maternal outcomes among multipara and grand multipara women (OR=0.2545, CI=0.08-0.79, P=0.018 and OR=0.1091, CI=0.03-0.45, p=0.002) respectively. Adverse neonatal outcomes were more likely among women who had prior delivery of macrosomic baby (OR=21.9091, CI=1.28-3.73, P=0.033). No adverse fetal outcome records were seen among teenage mothers, while adult women had 5.45% incidence.
CONCLUSIONAdverse maternal and neonatal outcomes were not significantly higher in the teenage GDM population compared to adult GDM. However, diagnosing and managing GDM among these groups would be beneficial considering their life expectancy and the need for a lifelong preventive program to avoid future development of Type 2 DM (T2DM) and its complications.
Teenage Pregnancy ; Pregnancy In Adolescence ; Diabetes Mellitus, Gestational ; Diabetes, Gestational ; Risk Factors
6.Maternal mid-upper arm circumference as a predictor of low birth weight outcome among newborn deliveries of adolescents in a Tertiary Level Hospital
Avegail M. Cardinal ; Vanessa-Maria F. Torres-Ticzon ; Ma. Emma Alesna-Llanto
Acta Medica Philippina 2024;58(Early Access 2024):1-10
Background:
Maternal malnutrition is a major cause of low birth weight (LBW) newborn outcome especially
among adolescent mothers. It is one of the key drivers of child stunting and initiates the vicious cycle of
intergenerational malnutrition. The body mass index prior to pregnancy or at the initial trimester is currently being used to establish the desired weight gain throughout pregnancy. However, Filipino adolescents often delay their first antenatal visit at a later stage of pregnancy. Without a baseline weight, the establishment of appropriate weight gain and nutritional status is often challenging. Mid-upper arm circumference (MUAC) was proven to be a good proxy measure of acute malnutrition, however, there was no global consensus on what MUAC cut-off point to use to identify pregnant adolescents at risk for delivering LBW babies. Finding the optimal cut-off could facilitate early identification and intervention of pregnant adolescents who are nutritionally at risk and could eventually break the cycle of intergenerational malnutrition.
Objectives:
The study aims to determine the association of maternal MUAC and the birth weight outcomes among newborn deliveries of adolescents in a tertiary hospital for a period of six months and to identify the optimal maternal MUAC cut-off point that can be used to predict low birth weight outcome among newborn deliveries of adolescents in a tertiary hospital.
Methods. A cross-sectional study was conducted among adolescents ages 10 to 19 years who delivered babies in a tertiary hospital in the Philippines for a period of six months. Maternal MUAC and LBW outcome were documented, and their association was determined using a logistic regression analysis. To measure diagnostic accuracy, the sensitivity, specificity, and the area under the curve were taken for each MUAC point. A receiver operating characteristic (ROC) curve was used to aid the MUAC cut-off determination.
Results:
Out of 237 newborn deliveries, 35% were noted with low birth weight while 65% had normal birth weight. Most of the mothers were in their late adolescence at 78%. The crude association for the MUAC cut-offs ≤23.00 cm, ≤23.50 cm, and ≤24.00 cm and LBW showed a significant value of 2.19, 2.25, and 2.39 at 95% CI, respectively. However, it is only the cut-off ≤24.00 cm that showed significant results for adjusted association by the logistic regression analysis. The MUAC cut-off ≤24.00 cm also showed a better trade-off value between the sensitivity and specificity. Furthermore, the optimal maternal MUAC measurement that predicts LBW newborn outcome points to ≤24.00 cm cut-off based on the ROC curve.
Conclusion
This study shows that the maternal MUAC is predictive of LBW outcome among adolescent deliveries.A MUAC cut-off of ≤24.00 cm was superior to lower cut-offs studied. The pregnant adolescents might need a higher MUAC cut-off than adults to allow timely intervention and prevention of poor neonatal outcomes. By doing this simple screening test, suspected pregnant adolescents can be easily identified and referred for further confirmatory testing.
Pregnancy in Adolescence
7.Innovative insights into extrachromosomal circular DNAs in gynecologic tumors and reproduction.
Ning WU ; Ling WEI ; Zhipeng ZHU ; Qiang LIU ; Kailong LI ; Fengbiao MAO ; Jie QIAO ; Xiaolu ZHAO
Protein & Cell 2024;15(1):6-20
Originating but free from chromosomal DNA, extrachromosomal circular DNAs (eccDNAs) are organized in circular form and have long been found in unicellular and multicellular eukaryotes. Their biogenesis and function are poorly understood as they are characterized by sequence homology with linear DNA, for which few detection methods are available. Recent advances in high-throughput sequencing technologies have revealed that eccDNAs play crucial roles in tumor formation, evolution, and drug resistance as well as aging, genomic diversity, and other biological processes, bringing it back to the research hotspot. Several mechanisms of eccDNA formation have been proposed, including the breakage-fusion-bridge (BFB) and translocation-deletion-amplification models. Gynecologic tumors and disorders of embryonic and fetal development are major threats to human reproductive health. The roles of eccDNAs in these pathological processes have been partially elucidated since the first discovery of eccDNA in pig sperm and the double minutes in ovarian cancer ascites. The present review summarized the research history, biogenesis, and currently available detection and analytical methods for eccDNAs and clarified their functions in gynecologic tumors and reproduction. We also proposed the application of eccDNAs as drug targets and liquid biopsy markers for prenatal diagnosis and the early detection, prognosis, and treatment of gynecologic tumors. This review lays theoretical foundations for future investigations into the complex regulatory networks of eccDNAs in vital physiological and pathological processes.
Male
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Female
;
Animals
;
Humans
;
Swine
;
DNA, Circular/genetics*
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Genital Neoplasms, Female
;
Semen
;
DNA
;
Reproduction
9.Baseline information of mothers who experienced early childbearing in selected provinces of Eastern Visayas: A basis for a targeted intervention in reducing early pregnancy in the region
Kim Leonard G. dela Luna ; Alvin Duke R. Sy ; Carl Mark Vincent B. Babasoro ; Rowel C. Malimban ; John Oliver H. Estadilla ; Jasper M. Maglinab ; Jihwan Jeon ; Heyeon Ji
Philippine Journal of Health Research and Development 2024;28(4):11-17
BACKGROUND
While adolescent pregnancies in the Eastern Visayas region of the Philippines have declined over the past five years, young mothers remain at risk of repeat pregnancies, which continue to expose them and their children to health and socioeconomic risks in this vulnerable region.
OBJECTIVESThis study aims to collect baseline information on mothers who experienced early pregnancy in Eastern Visayas and to identify significant differences in maternal characteristics based on type of residence and age. The findings will be used by a nongovernmental organization to plan and develop targeted interventions for this vulnerable population.
METHODOLOGYThis study utilized a descriptive cross-sectional design to collect data on mothers who experienced early pregnancy in four selected provinces of Eastern Visayas. Data were analyzed using descriptive statistics, chi-square tests, an independent t-test, and the Mann-Whitney U test.
RESULTSA total of 296 mothers participated in the survey. Among them, 80.1% were in high school during their first pregnancy, and 88.2% were unemployed at the time of the study. The youngest age at first pregnancy was 12 years. The participants' male partners were at least five years older (39.8%) and ten years older (11.1%). Significant differences were observed in the use of family planning method, number and status of pregnancies, and history of preterm labor.
CONCLUSIONResults suggest that adolescent pregnancy remains a public health concern in Eastern Visayas, particularly among lowincome teenagers with limited educational attainment, whose parents also had minimal education. The youngest reported age of pregnancy was 12 years. Therefore, efforts should focus on increasing access to family planning services, providing comprehensive reproductive health education, and enhancing maternal and child health services.
Human ; Adolescent Pregnancy ; Pregnancy In Adolescence ; Reproductive Health
10.Association of maternal isolated thyroid peroxidase antibody positive in the first trimester with fetal growth.
Jin Hui XU ; Na HAN ; Tao SU ; Li Zi LIN ; Yue Long JI ; Shuang ZHOU ; He Ling BAO ; Zheng LIU ; Shu Sheng LUO ; Xiang Rong XU ; Hai Jun WANG
Journal of Peking University(Health Sciences) 2023;55(5):886-892
OBJECTIVE:
To investigate the association of isolated thyroid peroxidase antibody (TPOAb) positive in the first trimester with fetal growth.
METHODS:
A total of 16 446 pregnant women were included in the birth cohort study, whose last menstrual period was between May 2016 and April 2019 and with singleton pregnancy. Maternal serum samples were collected when they firstly came for prenatal care in the first trimester. The pregnant women were consecutively seen and followed in the hospital and the information of pregnant women was extracted from the electronic medical information system. The pregnant women were divided into isolated TPOAb positive group (n=1 654) and euthyroid group (n=14 792). Three fetal ultrasound examinations were scheduled during the routine prenatal visits at the hospital and were performed by trained sonographers. All fetal growth indicators were quantified as gestational age- and gender- adjusted standard deviation score (Z-score) using the generalized additive models for location, scale and shape (GAMLSS). Fetal growth indicators included estimated fetal weight (EFW), abdominal circumference (AC), biparietal diameter (BPD), femur length (FL) and head circumference (HC). Fetal growth restriction (FGR) was defined as AC or EFW Z-score<3rd centile based on clinical consensus. Generalized estimating equation (GEE) analysis was applied to assess the association of maternal isolated TPOAb positive with fetal growth. The generalized linear model was further used to analyze the association between isolated TPOAb positive and fetal growth indicator at different gestational ages when the fetal growth indicator was significantly associated with isolated TPOAb positive in the GEE mo-del.
RESULTS:
The median gestational age at three ultrasound measurements was 23.6 (23.3, 24.1), 30.3 (29.7, 30.9), 37.3 (37.0, 37.7) weeks, respectively. The BPD Z-score was higher in isolated TPOAb positive women, compared with the euthyroid pregnant women after adjustment (β=0.057, 95%CI: 0.014-0.100, P=0.009). The generalized linear model showed the BPD Z-score was higher in the isolated TPOAb positive women at the end of 21-25 weeks (β=0.052, 95%CI: 0.001-0.103, P=0.044), 29-32 weeks (β=0.055, 95%CI: 0.004-0.107, P=0.035) and 36-40 weeks (β=0.068, 95%CI: 0.011-0.125, P=0.020), compared with the euthyroid pregnant women. There was no difference in other fetal growth indicators (EFW, AC, FL and HC) and FGR between the isolated TPOAb positive and euthyroid pregnant women.
CONCLUSION
The BPD Z-score was slightly increased in the isolated TPOAb positive pregnant women in the first trimester, while other fetal growth indicators were not changed. The reproducibility and practical significance of this result need to be confirmed.
Pregnancy
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Female
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Humans
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Pregnancy Trimester, First
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Iodide Peroxidase
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Cohort Studies
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Reproducibility of Results
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Fetal Development
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Fetal Weight
;
Fetal Growth Retardation
;
Ultrasonography, Prenatal


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