scholarly journals Autopercepção corporal e o consumo de recursos ergôgenicos por frequentadores de academia

2018 ◽  
Vol 12 (1) ◽  
pp. 160
Author(s):  
Simone Ferreira dos Anjos Reis ◽  
Vinicius Henrique Candido ◽  
Cristiane Fonseca Freitas ◽  
Cristiane Aparecida Silveira
Keyword(s):  
Social Sciences ◽  
Linear Model ◽  
Repeated Measures ◽  
General Linear Model ◽  
Cross Sectional Study ◽  
Minas Gerais ◽  
General Linear ◽  
Structured Interviews ◽  
Cross Sectional ◽  
Self Image

RESUMOObjetivo: caracterizar o perfil de praticantes de musculação quanto ao uso de recursos ergogênicos e relacioná-lo à autopercepção corporal. Método: estudo quantitativo, transversal, realizado em academias de musculação de duas cidades de Minas Gerais com entrevistas estruturadas utilizando um questionário e o conjunto de silhuetas. A análise foi pelo Statistical Package for Social Sciences (SPSS15.0), General Linear Model de medidas repetidas e a correlação de Pearson. Resultados: a prática de musculação, em ambos os sexos, foi pela melhora da saúde. A maioria afirmou que realiza as atividades físicas e consome suplementos sem orientação médica ou nutricional. O mais utilizado é o de proteínas, sendo que os homens consomem mais em relação às mulheres. Conclusão: não houve evidências de alterações de autoimagem relacionadas ao uso de suplementos, apesar da falta de orientação. Descritores: Autoimagem; Anabolizantes; Suplementos nutricionais; Promoção da Saúde; Enfermagem. ABSTRACT Objective: to characterize the profile of bodybuilders regarding the use of ergogenic resources and to relate it to body self perception. Method: a quantitative, cross-sectional study carried out at two-city fitness centers in Minas Gerais with structured interviews using a questionnaire and the set of silhouettes. The analysis was by the Statistical Package for Social Sciences (SPSS15.0), General Linear Model of repeated measures and Pearson's correlation. Results: the practice of bodybuilding, in both sexes, was due to improved health. Most said they perform physical activities and consume supplements without medical or nutritional guidance. The most commonly used is the protein, being that men consume more, compared to women. Conclusion: there was no evidence of self-image changes related to the use of supplements, despite the lack of orientation. Descriptors: Self image; Anabolics; Dietary Supplements; Health Promotion. Nursing.RESUMEN Objetivo: caracterizar el perfil de practicantes de musculación en cuanto al uso de recursos ergogénicos y relacionarlo al auto percepción corporal. Método: estudio cuantitativo, transversal, realizado en gimnasios de musculación de dos ciudades de Minas Gerais con entrevistas estructuradas utilizando un cuestionario y el conjunto de siluetas. El análisis fue por el Statistical Package for Social Sciences (SPSS15.0), General Linear Model de medidas repetidas y la correlación de Pearson. Resultados: la práctica de musculación, en ambos sexos, fue por la mejora de la salud. La mayoría afirmó que realizan las actividades físicas y consumen suplementos sin orientación médica o nutricional. El más utilizado es el de proteínas, y los hombres consumen más en relación a las mujeres. Conclusión: no hubo evidencias de alteraciones de autoimagen relacionadas al uso de suplementos, a pesar de la falta de orientación. Descriptores: Autoimagen; Anabolizantes; Suplementos Dietéticos; Promoción de la Salud; Enfermería.

scholarly journals Correlation of Anxiety with Pregnancy Symptoms and Maternal-fetal Attachment

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Solmaz Ghanbari Homaie ◽  
Sonia Hasani ◽  
Mojgan Mirghafourvand
Keyword(s):  
Pregnant Women ◽  
Linear Model ◽  
General Linear Model ◽  
Cross Sectional Study ◽  
General Linear ◽  
Cluster Sampling ◽  
Cross Sectional ◽  
Maternal Fetal Attachment ◽  
Demographic Questionnaire ◽  
Fetal Attachment

Background: Anxiety during pregnancy may affect maternal-fetal attachment (MFA) and the prevalence of pregnancy symptoms. Objectives: The present study aimed to assess the correlation of anxiety with pregnancy symptoms and MFA. Methods: This cross-sectional study was conducted on 220 pregnant women in the health centers of Tabriz, Iran, in 2020. Samples were selected by the cluster sampling method. Data were collected using the socio-demographic questionnaire, Pregnancy-related Anxiety Questionnaire-revised 2 (PRAQ-R2), MFA Scale (MFAS), and Pregnancy Symptoms Inventory (PSI), all of which were completed as self-administered in the second half of pregnancy. The Pearson’s correlation coefficient and adjusted general linear model were used for data analysis. Results: The results of Pearson’s correlation showed no correlation between anxiety during pregnancy and MFA among nulliparous (r = -0.003, P = 0.976) and multiparous (r = -0.003, P = 0.712) pregnant women. However, anxiety and pregnancy symptoms were significantly correlated among nulliparous (r = 0.424, P < 0.001) and multiparous (r = 0.227, P = 0.028) pregnant women. According to the general linear model, after adjusting the socio-demographic variables, a significant correlation was observed between anxiety and pregnancy symptoms (P < 0.001), while no relationship was found between anxiety and MFA (P = 0.705). Conclusions: Given the significant correlation between anxiety and pregnancy symptoms, pregnant women with anxiety symptoms need to be screened and treated by an expert psychological team if their disorder is confirmed.

The use of MIXED models in the analysis of animal experiments with repeated measures data

2004 ◽  
Vol 84 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Z. Wang and L. A. Goonewardene
Keyword(s):  
Least Squares ◽  
Linear Model ◽  
Repeated Measures ◽  
Mixed Model ◽  
Covariance Structure ◽  
General Linear Model ◽  
Ordinary Least Squares ◽  
General Linear ◽  
Repeated Measures Data ◽  
Split Plot

The analysis of data containing repeated observations measured on animals (experimental unit) allocated to different treatments over time is a common design in animal science. Conventionally, repeated measures data were either analyzed as a univariate (split-plot in time) or a multivariate ANOVA (analysis of contrasts), both being handled by the General Linear Model procedure of SAS. In recent times, the mixed model has become more appealing for analyzing repeated data. The objective of this paper is to provide a background understanding of mixed model methodology in a repeated measures analysis and to use balanced steer data from a growth study to illustrate the use of PROC MIXED in the SAS system using five covariance structures. The split-plot in time approach assumes a constant variance and equal correlations (covariance) between repeated measures or compound symmetry, regardless of their proximity in time, and often these assumptions are not true. Recognizing this limitation, the analysis of contrasts was proposed. If there are missing measurements, or some of the data are measured at different times, such data were excluded resulting in inadequate data for a meaningful analysis. The mixed model uses the generalized least squares method, which is generally better than the ordinary least squares used by GLM, if the appropriate covariance structure is adopted. The presence of unequally spaced and/or missing data does not pose a problem for the mixed model. In the example analyzed, the first order ante dependence [ANTE(1)] covariance model had the lowest value for the Akaike and Schwarz’s Bayesian information criteria fit statistics and is therefore the model that provided the best fit to our data. Hence, F values, least square estimates and standard errors based on the ANTE (1) were considered the most appropriate from among the five models demonstrated. It is recommended that the mixed model be used for the analysis of repeated measures designs in animal studies. Key words: Repeated measures, General Linear Model, Mixed Model, split-plot, covariance structure

scholarly journals Vitamin D Deficiency Is Inversely Associated with COVID-19 Incidence and Disease Severity in Chinese People

2020 ◽  
Vol 151 (1) ◽  
pp. 98-103 ◽  
Author(s):  
Xia Luo ◽  
Qing Liao ◽  
Ying Shen ◽  
Huijun Li ◽  
Liming Cheng
Keyword(s):  
Vitamin D ◽  
Logistic Regression ◽  
Vitamin D Deficiency ◽  
Linear Model ◽  
Disease Severity ◽  
General Linear Model ◽  
General Linear ◽  
Chinese People ◽  
Cross Sectional ◽  
Multivariable Logistic Regression

ABSTRACT Background Vitamin D might have beneficial potential in influencing the natural history of the coronavirus disease 2019 (COVID-19) due to its immunomodulatory and anti-inflammatory properties. Objective The aim was to investigate whether vitamin D deficiency is associated with COVID-19 incidence and disease severity in Chinese people. Methods In a cross-sectional study we retrospectively analyzed 335 COVID-19 patients (median: 56.0; IQR: 43.0–64.0 y) who were admitted to the Wuhan Tongji Hospital between 27 February and 21 March 2020. We also included an age- and sex-matched population of 560 individuals (median: 55; IQR: 49.0–60.0 y) who underwent the physical examination program. Their serum 25-hydroxyvitamin D [25(OH)D] concentrations were measured during the same period from 2018–2019. Serum 25(OH)D concentrations were measured for all COVID-19 patients on admission. Severity of COVID-19 was determined based on the level of respiratory involvement. A general linear model with adjustment for covariates was used to compare 25(OH)D concentrations between the COVID-19 and 2018–2019 control groups. Adjusted ORs with 95% CIs for associations between vitamin D status and COVID-19 severity were estimated via multivariable logistic regression. Results In the general linear model adjusted for age, sex, comorbidities, and BMI, serum 25(OH)D concentrations were significantly lower among COVID-19 patients than the 2018–2019 controls [ln transformed values of 3.32 ± 0.04 vs. 3.46 ± 0.022 ln (nmol/L), P = 0.014]. Multivariable logistic regression showed that male sex (OR: 2.26; 95% CI: 1.06, 4.82), advanced age (≥65 y) (OR: 4.93; 95% CI: 1.44, 16.9), and vitamin D deficiency (&lt;30 nmol/L) (OR: 2.72; 95% CI: 1.23, 6.01) were significantly associated with COVID-19 severity (all P &lt; 0.05). Conclusions These findings suggested that vitamin D deficiency impacts COVID-19 hospitalization and severity in the Chinese population.

scholarly journals A population-based study of health-promoting behaviors and their predictors in Iranian males, 2019

2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Fovziye Sanaati ◽  
Mehrnaz Geranmayeh ◽  
Zahra Behboodi Moghadam ◽  
Armin Zareiyan ◽  
Keshvar Samadaee Gelehkolaee ◽  
...  
Keyword(s):  
Social Support ◽  
Linear Model ◽  
General Linear Model ◽  
Influential Factor ◽  
General Linear ◽  
Cluster Sampling ◽  
Cross Sectional ◽  
Health Promoting Behaviors ◽  
Health Promoting ◽  
Health Promoting Lifestyle

Abstract Background Health-promoting lifestyle (HPL) is any measure taken to maintain a person’s health. The most important and influential factor in maintaining and enhancing health are health-promoting behaviors (HPB). This study aimed to determine HPB and their predictors among Iranian men. Methods In this cross-sectional study, 783 Iranian men, living in Tehran, were selected, using multistage cluster sampling. The employed questionnaires, namely the sociodemographic questionnaire, Health-Promoting Lifestyle Profile II (HPLP-II), and the second part of the Personal Resource Questionnaire (PRQ 85-Part 2), were completed through interviews. The relationship between the dependent variables (HPLP-II and its subdomains) and independent variables (sociodemographic characteristics and social support) was investigated using the adjusted General Linear Model (GLM). Results The mean ± standard deviation of the total HPLP-II score was 2.72 ± 0.44 in the range of 1–4. Among the six dimensions of the HPB, the participants achieved the highest score (3.00 ± 0.52) and lowest score (1.96 ± 0.56) in spiritual growth and physical activity, respectively. The Pearson test showed that the perceived social support was significantly correlated with HPLP-II (r = 0.23; p < 0.001) and all of its subdomains (r = 0.09–0.24; p < 0.001). Based on the adjusted general linear model, social support, age, job, and income adequacy were the predictors of HPL in men and could explain 30.9% of the variance of the HPL score. Conclusions The research findings confirmed the importance of social support and modifying variables (social and personal) in the incidence of HPB in men.

scholarly journals Modelling group-level repeated measures of neuroimaging data using the univariate general linear model

2018 ◽  
Author(s):  
Martyn McFarquhar
Keyword(s):  
Linear Model ◽  
Repeated Measures ◽  
General Linear Model ◽  
Repeated Measurements ◽  
General Linear ◽  
Group Level ◽  
Repeated Measures Anova ◽  
Continuous Covariates ◽  
Neuroimaging Data ◽  
Model Approach

Group-level repeated measurements are common in neuroimaging, yet their analysis remains complex. Although a variety of specialised tools now exist, it is surprising that to-date there has been no clear discussion of how repeated-measurements can be analysed appropriately using the standard general linear model approach, as implemented in software such as SPM and FSL. This is particularly surprising given that these implementations necessitate the use of multiple models, even for seemingly conventional analyses, and that without care it is very easy to specify contrasts that do not correctly test the effects of interest. Despite this, interest in fitting these types of models using conventional tools has been growing in the neuroimaging community. As such it has become even more important to elucidate the correct means of doing so. To begin, this paper will discuss the key concept of the expected mean squares (EMS) for defining suitable F -ratios for testing hypotheses. Once this is understood, the logic of specifying correct repeated measurements models in the GLM should be clear. The ancilliary issue of specifying suitable contrast weights in these designs will also be discussed, providing a complimentary perspective on the EMS. A set of steps will then be given alongside an example of specifying a 3-way repeated-measures ANOVA in SPM. Equivalency of the results compared to other statistical software will be demonstrated. Additional issues, such as the inclusion of continuous covariates and the assumption of sphericity, will also be discussed. The hope is that this paper will provide some clarity on this confusing topic, giving researchers the confidence to correctly specify these forms of models within traditional neuroimaging analysis tools.

Raymond L. Horton. The General Linear Model, Data Analysis in the Social and Behavioral Sciences. New York: McGraw-Hill International Book Company. 1978. pp.xi + 274.

1981 ◽  
Vol 20 (3) ◽  
pp. 367-368
Author(s):  
Karol J. Krotki
Keyword(s):  
New York ◽  
Linear Model ◽  
Repeated Measures ◽  
Cohort Analysis ◽  
Latin Square ◽  
General Linear Model ◽  
Analysis Of Covariance ◽  
General Linear ◽  
And Migration ◽  
General Regression

It is a parsimonious book for the massive material it contains. Written for advanced students of social and behavioural sciences, it presents the analytic uses, limitations, and assumptions underlying the application of five techniques: factorial analysis of variance designs, latin square designs, repeated measures designs, analysis of covariance, and general regression analysis. The slimness of the book is made possible partly by the parsimony of style - a parsimony which did not impair the clarity of exposition - but mainly by the unifying factor of the general linear model (GLM)presented in the first two chapters. In this respect, the work reviewed resembles a 1978 book on demographic technique of analysis by Guillaume J. Wunsch and Marc G. Termote (plenum Press). There, too, in introductory chapters the common elements of cohort analysis and period analysis were first presented in a general manner and then applied to the four fields of mortality, nuptiality, natality, and migration. These examples of generalizability are recommended to expositors of intricacies in our profession. Such methodological generalizations are a condition of real interdisciplinary exchanges, of which this journal is a notable example. There is something genuine about that kind of generalizations in comparison with the more desperate attempts to generalize about the society so beloved of recent Ph.Ds.

scholarly journals Διερεύνηση της επίδρασης παραγόντων ειδικών του φύλου στην in vivo δραστικότητα του μεταβολικού ενζύμου CYP1A2

2015 ◽  
Author(s):  
Βασιλική Τσιώκου
Keyword(s):  
Linear Model ◽  
Repeated Measures ◽  
General Linear Model ◽  
General Linear ◽  
Whitney Test ◽  
Rp Hplc ◽  
Mann Whitney Test

Η δραστηριότητα του CYP1A2 μειώνεται από την παρουσία ορμονών του φύλου όπως τη χρήση αντισυλληπτικών δισκίων, τη θεραπεία ορμονικής υποκατάστασης και την εγκυμοσύνη. Σκοπός της παρούσας μελέτης ήταν να διερευνηθεί η επίδραση των διακυμάνσεων των ορμονών (κυρίως των οιστρογόνων) που συμβαίνουν κατά τη διάρκεια του φυσιολογικού εμμηνορρυσιακού κύκλου στην in vivo δραστικότητα του CYP1A2 και των ενζύμων CYP2A6, XO και NAT-2. Επιπλέον, μελετήθηκε η κατανομή των δύο πιο συχνών απλών νουκλεοτιδικών πολυμορφισμών του γονιδίου του CYP1A2 (CYP1A2*1C και CYP1A2*1F), προκειμένου να διερευνηθεί η επίδραση του γονοτύπου στην φαινοτυπική έκφραση του CYP1A2.Μέθοδοι: Η μελέτη πραγματοποιήθηκε σε 42 υγιείς, προεμμηνοπαυσιακές γυναίκες (25 μη καπνίστριες, ΜΚ και 17 καπνίστριες, Κ). Έγινε συλλογή δειγμάτων ούρων και αίματος κατά τη διάρκεια της πρώιμης ωοθυλακικής (ΠΩΦ), της όψιμης ωοθυλακικής (ΟΩΦ) και της ωχρινικής φάσεως (ΩΦ). Τα επίπεδα της 17-β οιστραδιόλης, της προγεστερόνης, της FSH και της LH προσδιορίσθηκαν και στις τρεις φάσεις του κύκλου. Η δραστηριότητα των ενζύμων CYP1A2, CYP2A6, XO και NAT-2 προσδιορίσθηκε με τη χρήση των μεταβολικών λόγων της καφεΐνης στα ούρα (AFMU+1U+1X)/17U, 17U/(17U+17X), 1U/(1X+1U), AFMU/(AFMU+1U+1X), αντίστοιχα, στις τρεις φάσεις του κύκλου χρησιμοποιώντας τη μέθοδο RP-HPLC. Ο έλεγχος γονοτύπου για τους πολυμορφισμούς -3860 G>A (αλλήλιο CYP1A2*1C) και -163 C>A (αλλήλιο CYP1A2*1F) έγινε χρησιμοποιώντας τη μεθόδο PCR-RFLP.Αποτελέσματα: η δραστηριότητα του CYP1A2 ήταν μειωμένη στην όψιμη ωοθυλακική σε σύγκριση με την πρώιμη ωοθυλακική και ωχρινική φάση τόσο στις 25 μη καπνίστριες (ΠΩΦ: 3,18 ± 1,00, ΟΩΦ: 2,7 6± 0,77, ΩΦ: 3,06 ± 0,84; p<0,05, RM ANOVA on Ranks) όσο και στις 17 καπνίστριες (ΠΩΦ:5,20 ± 2,11, ΟΩΦ:4,41 ± 1,26, ΩΦ:4,93 ± 1,49; p>0,05, One Way RM ANOVA) χωρίς όμως να αναδεικνύεται στατιστικώς σημαντική διαφορά στις καπνίστριες. Η δραστηριότητα του CYP2A6 βρέθηκε να είναι αυξημένη στην όψιμη ωοθυλακική φάση (0,70 ± 0,13) διαφέροντας στατιστικά με την πρώιμη ωοθυλακική (0,60 ± 0,12; p<0,05) αλλά όχι με την ωχρινική φάση (0,63 ± 0,13; p>0,05, RM ANOVA on Ranks). Στην δραστηριότητα της XO δεν ανιχνεύθηκε στατιστικώς σημαντική διαφορά μεταξύ των τριών φάσεων του κύκλου (ΠΩΦ:0,52 ± 0,06, ΟΩΦ: 0,52 ± 0,05, ΩΦ: 0,51 ± 0,05; p>0,05, One Way RM ANOVA) καθώς επίσης και στη δραστηριότητα της ΝΑΤ-2 στις ταχείες ακετυλιώτριες (ΠΩΦ:0,36 ± 0,05, ΟΩΦ: 0,38 ± 0,06, ΩΦ: 0,36 ± 0,04; p>0,05, One Way RM ANOVA). Η δραστηριότητα της ΝΑΤ-2 στις βραδείες ακετυλιώτριες βρέθηκε να είναι αυξημένη στην όψιμη ωοθυλακική φάση (0,09 ± 0,02) διαφέροντας στατιστικά με την πρώιμη ωοθυλακική (0,07 ± 0,02) και με την ωχρινική φάση (0,07 ± 0,02; p<0,05, One Way RM ANOVA). Στην μελέτη ανιχνεύθηκε μόνο ο πολυμορφισμός CYP1A2*1F. Οι καπνίστριες με γονότυπο A/A είχαν σημαντικά υψηλότερους μέσους μεταβολικούς λόγους καφεΐνης (5,71 ± 1,69) από τις φορείς A/C (4,32 ± 1,63; p<0,05, Mann-Whitney test), ενώ αυτή η διαφορά δεν παρατηρήθηκε στις μη καπνίστριες (A/C: 3,35 ± 1,22, Α/A: 3,09 ± 0,52; p>0,05, Mann-Whitney test). Επίσης, ο γονότυπος αποδείχθηκε οτι δεν επηρεάζει τη δραστηριότητα του CYP1A2 στις τρεις φάσεις του κύκλου (p>0.05, Repeated Measures General Linear Model).Συμπεράσματα: H παρούσα μελέτη αναδεικνύει πως στην όψιμη ωοθυλακική φάση, όπου τα οιστρογόνα βρίσκονται στα υψηλότερα επίπεδα παρατηρήθηκε: 1) μείωση της δραστηριότητας του CYP1A2, 2) αύξηση της δραστηριότητας του CYP2A6 και 3) αύξηση της δραστηριότητας της ΝΑΤ-2 στις βραδείες ακετυλιώτριες. Η δραστηριότητα της XO και της ΝΑΤ-2 στις ταχείες ακετυλιώτριες δε διαφοροποιήθηκε στις διάφορες φάσεις του κύκλου. Οι φυσιολογικές διακυμάνσεις των οιστρογόνων κατά τη διάρκεια των φάσεων των φυσιολογικών εμμηνορρυσιακών κύκλων μπορεί να σχετίζονται με παραλλαγή στη δραστηριότητα του CYP1A2, του CYP2A6 και της ΝΑΤ-2 στις βραδείες ακετυλιώτριες.  

scholarly journals CORTICAL INTEGRATIVE THERAPY FOR THE TREATMENT OF MIGRAINES AND HEADACHES

2021 ◽  
Vol 57 (2) ◽  
pp. 168-176
Author(s):  
Nicole C. Lim ◽  
◽  
Victor M. Pedro ◽  
Elena Oggero ◽  
◽  
...  
Keyword(s):  
Linear Model ◽  
Repeated Measures ◽  
Postural Stability ◽  
Chart Review ◽  
Retrospective Chart Review ◽  
General Linear Model ◽  
Post Treatment ◽  
General Linear ◽  
Integrative Therapy ◽  
Headache Disability

Migraine is a common neurological disorder that is characterized by a host of symptoms including severe throbbing headaches. In this retrospective chart review, the effectiveness of Cortical Integrative Therapy (PedroCIT®) was examined in adults with migraines. Multivariate General Linear Model (M-GLM) was utilized to determine if the emotional, functional, and overall difficulties, as well as the intensity of pain experienced with headaches decreased from before to after PedroCIT® treatment in individuals with mild to complete disability resulting from headaches. Repeated Measures General Linear Model (RM-GLM) was also used to investigate if postural stability increased from pre- to post-treatment. The results of the M-GLM showed that PedroCIT® was effective in reducing emotional, functional, overall disability, and intensity of pain resulting from headaches. Furthermore, RM-GLM indicated that patients who underwent PedroCIT® improved their postural stability from pre- to post-treatment. Finally, the findings also showed that the duration of the treatment did not have any effect among patients with varied degrees of headache disability. This study illustrates the effectiveness of PedroCIT® in the treatment of headaches and postural instability in migraine patients.

Predictors of health practices among a group of Iranian adolescent pregnant women: a cross-sectional study

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Tahereh Hadian ◽  
Moosavi Sanaz ◽  
Meedya Shahla ◽  
Mohammad-Alizadeh-Charandabi Sakineh ◽  
Mohammadi Eesa ◽  
...  
Keyword(s):  
Prenatal Care ◽  
Pregnant Women ◽  
Linear Model ◽  
Emotional Support ◽  
General Linear Model ◽  
Cross Sectional Study ◽  
Health Practices ◽  
Health Practice ◽  
Sectional Study ◽  
Cross Sectional

AbstractIntroductionThe health practices of pregnant women can affect maternal and fetal health, and pregnancy outcomes. Understanding the predictors of health practices in adolescent pregnant women can help improve these practices. The present study aimed to determine the predictors of health practices in adolescent pregnant women.Materials and methodsThis cross-sectional study was conducted on 316 adolescent pregnant women in health centers of Tehran (capital of Iran). The participants were selected through the census method. The data were collected using the socio-demographic, obstetrics and health practices questionnaires and analyzed using Pearson correlation coefficient, independent t-test, one-way ANOVA, and general linear model.ResultsThe mean score of health practice was 135.29 ± 9.08, ranging from 34 to 170. The highest and the lowest mean score pertained to the avoidance of harmful drugs and opiates subscale (29.79) and the balance of rest and exercise subscale (13.15), respectively. The general linear model showed that a lower level of education, a history of abortion, lack of involvement in pre-pregnancy counseling, and delayed attendance for prenatal care, reduced the health practice score. However, high level of emotional support from the spouse increased the health practice score.ConclusionsThe findings highlighted the factors effective on health practices including involvement in pre-pregnancy counseling, early prenatal care and emotional support for the adolescent pregnant woman.

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