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1. Influence of sex, age, pubertal maturation and body mass index on circulating white blood cell counts in healthy European adolescents—the HELENA study

Author

Pérez de Heredia, Fátima, Gómez Martínez, Sonia, Díaz, Ligia Esperanza, Veses, Ana M., Nova, Esther, Wärnberg, Julia, Huybrechts, Inge, Vyncke, Krishna, Androutsos, Odysseas, Ferrari, Marika, Palacios, Gonzalo, Wastlund, Acki, Kovács, Éva, Gottrand, Frédéric, González Gross, Marcela, Castillo, Manuel J., Sjöstrom, Michael, Manios, Yannis, Kafatos, Anthony, Molnár, Denes, Widhalm, Kurt, Moreno, Luis A., Marcos, Ascensión, Moreno LA, Gottrand F, De Henauw S, González Gross M, Gilbert C, Kafatos A, Libersa C, Castelló S, Kersting M, Sjöstrom M, Molnár D, Dallongeville J, Hall G, Maes L, Scalfi L, Meléndez P, Fleta J, Casajús JA, Rodríguez G, Tomás C, Mesana MI, Vicente Rodríguez G, Villarroya A, Gil CM, Ara I, Revenga J, Lachen C, Fernández Alvira J, Bueno G, Lázaro A, Bueno O, León JF, Garagorri JM, Bueno M, Rey López JP, Iglesia I, Velasco P, Bel S, Gracia Marco LA, Mouratidou T, Marcos A, Nova E, Gómez Martínez S, Díaz LE, Romeo J, Veses A, Zapatera B, Pozo T, Martínez D, Beghin L, Iliescu C, Von Berlepsch J, Sichert Hellert W, Koeppen E, Molnar D, Erhardt E, Csernus K, Török K, Bokor S, Nagy E, Kovács O, Répasi J, Codrington C, Plada M, Papadaki A, Sarri K, Viskadourou A, Hatzis C, Kiriakakis M, Tsibinos G, Vardavas C, Sbokos M, Protoyeraki E, Fasoulaki M, Stehle P, Pietrzik K, Breidenassel C, Spinneker A, Al Tahan J, Segoviano M, Berchtold A, Bierschbach C, Blatzheim E, Schuch A, Pickert P, Castillo MJ, Gutiérrez Á, Ortega FB, Ruiz JR, Artero EG, España V, Jiménez Pavón D, Chillón P, Sánchez Muñoz C, Cuenca M, Arcella D, Azzini E, Barison E, Bevilacqua N, Buonocore P, Catasta G, Censi L, Ciarapica D, D'Acapito P, Ferrari M, Galfo M, Le Donne C, Leclercq C, Maiani G, Mauro B, Mistura L, Pasquali A, Piccinelli R, Polito A, Spada R, Sette S, Zaccaria M, Roccaldo R, VITAGLIONE, PAOLA, Montagnese C, De Bourdeaudhuij I, De Vriendt T, Matthys C, Vereecken C, de Maeyer M, Ottevaere C, Huybrechts I, Widhalm K, Phillipp K, Dietrich S, Kubelka B, Boriss Riedl M, Manios Y, Grammatikaki E, Bouloubasi Z, Cook TL, Eleutheriou S, Consta O, Moschonis G, Katsaroli I, Kraniou G, Papoutsou S, Keke D, Petraki I, Bellou E, Tanagra S, Kallianoti K, Argyropoulou D, Kondaki K, Tsikrika S, Karaiskos C, Meirhaeghe A, Hagströmer M, Hurtig Wennlöf A, Hallström L, Patterson E, Kwak L, Wärnberg J, Rizzo N, Sánchez Molero J, Picó E, Navarro M, Viadel B, Carreres JE, Merino G, Sanjuán R, Lorente M, Sánchez MJ, Thomas S, Allchurch E, Burgess P, Astrom A, Sverkén A, Broberg A, Masson A, Lehoux C, Brabant P, Pate P, Fontaine L, Sebok A, Kuti T, Hegyi A, Maldonado C, Llorente A, García E, von Fircks H, Hallberg ML, Messerer M, Larsson M, Fredriksson H, Adamsson V, Börjesson I, Fernández L, Smillie L, Wills J, Valtueña J, Albers U, Pedrero R, Palacios G, Meléndez A, Benito PJ, Gómez Lorente JJ, Cañada D, Urzanqui A, Ortiz JC, Fuentes F, Torres RM, Navarro P., Pérez de Heredia, Fátima, Gómez Martínez, Sonia, Díaz, Ligia Esperanza, Veses, Ana M., Nova, Esther, Wärnberg, Julia, Huybrechts, Inge, Vyncke, Krishna, Androutsos, Odyssea, Ferrari, Marika, Palacios, Gonzalo, Wastlund, Acki, Kovács, Éva, Gottrand, Frédéric, González Gross, Marcela, Castillo, Manuel J., Sjöstrom, Michael, Manios, Yanni, Kafatos, Anthony, Molnár, Dene, Widhalm, Kurt, Moreno, Luis A., Marcos, Ascensión, Moreno, La, Gottrand, F, De Henauw, S, González Gross, M, Gilbert, C, Kafatos, A, Libersa, C, Castelló, S, Kersting, M, Sjöstrom, M, Molnár, D, Dallongeville, J, Hall, G, Maes, L, Scalfi, L, Meléndez, P, Fleta, J, Casajús, Ja, Rodríguez, G, Tomás, C, Mesana, Mi, Vicente Rodríguez, G, Villarroya, A, Gil, Cm, Ara, I, Revenga, J, Lachen, C, Fernández Alvira, J, Bueno, G, Lázaro, A, Bueno, O, León, Jf, Garagorri, Jm, Bueno, M, Rey López, Jp, Iglesia, I, Velasco, P, Bel, S, Gracia Marco, La, Mouratidou, T, Marcos, A, Nova, E, Gómez Martínez, S, Díaz, Le, Romeo, J, Veses, A, Zapatera, B, Pozo, T, Martínez, D, Beghin, L, Iliescu, C, Von Berlepsch, J, Sichert Hellert, W, Koeppen, E, Molnar, D, Erhardt, E, Csernus, K, Török, K, Bokor, S, Nagy, E, Kovács, O, Répasi, J, Codrington, C, Plada, M, Papadaki, A, Sarri, K, Viskadourou, A, Hatzis, C, Kiriakakis, M, Tsibinos, G, Vardavas, C, Sbokos, M, Protoyeraki, E, Fasoulaki, M, Stehle, P, Pietrzik, K, Breidenassel, C, Spinneker, A, Al Tahan, J, Segoviano, M, Berchtold, A, Bierschbach, C, Blatzheim, E, Schuch, A, Pickert, P, Castillo, Mj, Gutiérrez, Á, Ortega, Fb, Ruiz, Jr, Artero, Eg, España, V, Jiménez Pavón, D, Chillón, P, Sánchez Muñoz, C, Cuenca, M, Arcella, D, Azzini, E, Barison, E, Bevilacqua, N, Buonocore, P, Catasta, G, Censi, L, Ciarapica, D, D'Acapito, P, Ferrari, M, Galfo, M, Le Donne, C, Leclercq, C, Maiani, G, Mauro, B, Mistura, L, Pasquali, A, Piccinelli, R, Polito, A, Spada, R, Sette, S, Zaccaria, M, Roccaldo, R, Vitaglione, Paola, Montagnese, C, De Bourdeaudhuij, I, De Vriendt, T, Matthys, C, Vereecken, C, de Maeyer, M, Ottevaere, C, Huybrechts, I, Widhalm, K, Phillipp, K, Dietrich, S, Kubelka, B, Boriss Riedl, M, Manios, Y, Grammatikaki, E, Bouloubasi, Z, Cook, Tl, Eleutheriou, S, Consta, O, Moschonis, G, Katsaroli, I, Kraniou, G, Papoutsou, S, Keke, D, Petraki, I, Bellou, E, Tanagra, S, Kallianoti, K, Argyropoulou, D, Kondaki, K, Tsikrika, S, Karaiskos, C, Meirhaeghe, A, Hagströmer, M, Hurtig Wennlöf, A, Hallström, L, Patterson, E, Kwak, L, Wärnberg, J, Rizzo, N, Sánchez Molero, J, Picó, E, Navarro, M, Viadel, B, Carreres, Je, Merino, G, Sanjuán, R, Lorente, M, Sánchez, Mj, Thomas, S, Allchurch, E, Burgess, P, Astrom, A, Sverkén, A, Broberg, A, Masson, A, Lehoux, C, Brabant, P, Pate, P, Fontaine, L, Sebok, A, Kuti, T, Hegyi, A, Maldonado, C, Llorente, A, García, E, von Fircks, H, Hallberg, Ml, Messerer, M, Larsson, M, Fredriksson, H, Adamsson, V, Börjesson, I, Fernández, L, Smillie, L, Wills, J, Valtueña, J, Albers, U, Pedrero, R, Palacios, G, Meléndez, A, Benito, Pj, Gómez Lorente, Jj, Cañada, D, Urzanqui, A, Ortiz, Jc, Fuentes, F, Torres, Rm, and Navarro, P.

Subjects
Male, medicine.medical_specialty, Adolescent, Neutrophils, RJ, Lymphocyte, RJ101, chemical and pharmacologic phenomena, Basophil, CD16, Adolescents, Monocytes, Immunophenotyping, Leukocyte Count, Sex Factors, Reference Values, immune system diseases, Internal medicine, White blood cell, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, hemic and lymphatic diseases, Leukocytes, medicine, Humans, Cytotoxic T cell, Lymphocytes, Sexual Maturation, 10. No inequality, Body mass index, 2. Zero hunger, Immune cell, business.industry, Immune cells, Puberty, Age Factors, hemic and immune systems, Basophils, 3. Good health, Eosinophils, Endocrinology, medicine.anatomical_structure, Pediatrics, Perinatology and Child Health, Female, Sex, business, CD8, circulatory and respiratory physiology
Abstract

© 2015, Springer-Verlag Berlin Heidelberg. Percentiles 10th, 25th, 50th, 75th and 90th are presented for circulating white blood cells (WBC), neutrophils, lymphocytes, monocytes, eosinophils and basophils in healthy European adolescents (12.5–17.5 years, n = 405, 48.9 % boys), considering age, sex, puberty and body mass index (BMI). CD3+ (mature T cells), CD4+ (T helper), CD8+ (T cytotoxic), CD16+56+ (natural killer), CD19+ (B cells), CD3+CD45RA+, CD4+CD45RA+, CD8+CD45RA+ (naïve), CD3+CD45RO+, CD4+CD45RO+ and CD8+CD45RO+ (memory) lymphocytes were also analysed by immunophenotyping. Girls presented higher WBC, neutrophil, CD3+CD45RO+ and CD4+CD45RO+ cell counts and CD3+/CD19+ ratio, and lower CD3+CD45RA+ and CD4+CD45RA+ counts than boys. Age was associated with higher neutrophil counts and CD3+/CD19+, and lower CD19+ counts; in boys, with lower CD3+CD45RA+, CD4+CD45RA+ and CD8+CD45RA+ counts as well; in girls, with higher WBC, CD3+CD45RO+ and CD4+CD45RO+ counts. Pubertal maturation in boys was associated with lower WBC and lymphocyte counts; in girls, with higher basophil, CD3+CD45RO+ and CD4+CD45RO+ values. BMI was associated with higher WBC counts; in boys, also with higher lymphocyte counts; in girls, with higher neutrophil, CD4+, CD3+CD45RO+ and CD4+CD45RO+ counts. Conclusion: Our study provides normative values for circulating immune cells in adolescents, highlighting the importance of considering sex, age, pubertal maturation and BMI when establishing reference ranges for WBC in paediatric populations., As well as the financial support of the European Community 6th RTD Framework Programme (contract FOOD-CT-2005-007034)

Published
2015

2. Self-reported sleep duration, white blood cell counts and cytokine profiles in European adolescents: the HELENA study

Author

Pérez de Heredia F, Garaulet M, Gómez Martínez S, Díaz LE, Wärnberg J, Androutsos O, Michels N, Breidenassel C, Cuenca García M, Huybrechts I, Gottrand F, Ferrari M, Santaliestra Pasías AM, Kafatos A, Molnár D, Sjöstrom M, Widhalm K, Moreno LA, Marcos A, De Henauw S, González Gross M, Gilbert C, Libersa C, Castelló S, Kersting M, Dallongeville J, Hall G, Maes L, Scalfi L, Meléndez P, Fleta J, Casajús JA, Rodríguez G, Tomás C, Mesana MI, Vicente Rodríguez G, Villarroya A, Gil CM, Ara I, Revenga J, Lachen C, Fernández Alvira J, Bueno G, Lázaro A, Bueno O, León JF, Garagorri JM, Bueno M, López JP, Iglesia I, Velasco P, Bel S, Gracia Marco LA, Mouratidou T, Nova E, Romeo J, Veses A, Zapatera B, Pozo T, Martínez D, Béghin L, Iliescu C, Von Berlepsch J, Sichert Hellert W, Koeppen E, Molnar D, Erhardt E, Csernus K, Török K, Bokor S, Nagy E, Kovács O, Répasi J, Codrington C, Plada M, Papadaki A, Sarri K, Viskadourou A, Hatzis C, Kiriakakis M, Tsibinos G, Vardavas C, Sbokos M, Protoyeraki E, Fasoulaki M, Stehle P, Pietrzik K, Spinneker A, Al Tahan J, Segoviano M, Berchtold A, Bierschbach C, Blatzheim E, Schuch A, Pickert P, Castillo MJ, Gutiérrez Á, Ortega FB, Ruiz JR, Artero EG, España V, Jiménez Pavón D, Chillón P, Sánchez Muñoz C, Cuenca M, Arcella D, Azzini E, Barison E, Bevilacqua N, Buonocore P, Catasta G, Censi L, Ciarapica D, D'Acapito P, Galfo M, Le Donne C, Leclercq C, Maiani G, Mauro B, Mistura L, Pasquali A, Piccinelli R, Polito A, Spada R, Sette S, Zaccaria M, Roccaldo R, Montagnese C, De Bourdeaudhuij I, De Vriendt T, Matthys C, Vereecken C, de Maeyer M, Ottevaere C, Phillipp K, Dietrich S, Kubelka B, Boriss Riedl M, Manios Y, Grammatikaki E, Bouloubasi Z, Cook TL, Eleutheriou S, Consta O, Moschonis G, Katsaroli I, Kraniou G, Papoutsou S, Keke D, Petraki I, Bellou E, Tanagra S, Kallianoti K, Argyropoulou D, Kondaki K, Tsikrika S, Karaiskos C, Meirhaeghe A, Hagströmer M, Wennlöf AH, Hallström L, Patterson E, Kwak L, Rizzo N, Sánchez Molero J, Picó E, Navarro M, Viadel B, Carreres JE, Merino G, Sanjuán R, Lorente M, Sánchez MJ, Thomas S, Allchurch E, Burgess P, Astrom A, Sverkén A, Broberg A, Masson A, Lehoux C, Brabant P, Pate P, Fontaine L, Sebok A, Kuti T, Hegyi A, Maldonado C, Llorente A, García E, von Fircks H, Hallberg ML, Messerer M, Larsson M, Fredriksson H, Adamsson V, Börjesson I, Fernández L, Smillie L, Wills J, Valtueña J, Albers U, Pedrero R, Palacios G, Meléndez A, Benito PJ, Lorente JJ, Cañada D, Urzanqui A, Ortiz JC, Fuentes F, Torres RM, Navarro P., VITAGLIONE, PAOLA, Pérez de Heredia, F, Garaulet, M, Gómez Martínez, S, Díaz, Le, Wärnberg, J, Androutsos, O, Michels, N, Breidenassel, C, Cuenca García, M, Huybrechts, I, Gottrand, F, Ferrari, M, Santaliestra Pasías, Am, Kafatos, A, Molnár, D, Sjöstrom, M, Widhalm, K, Moreno, La, Marcos, A, De Henauw, S, González Gross, M, Gilbert, C, Libersa, C, Castelló, S, Kersting, M, Dallongeville, J, Hall, G, Maes, L, Scalfi, L, Meléndez, P, Fleta, J, Casajús, Ja, Rodríguez, G, Tomás, C, Mesana, Mi, Vicente Rodríguez, G, Villarroya, A, Gil, Cm, Ara, I, Revenga, J, Lachen, C, Fernández Alvira, J, Bueno, G, Lázaro, A, Bueno, O, León, Jf, Garagorri, Jm, Bueno, M, López, Jp, Iglesia, I, Velasco, P, Bel, S, Gracia Marco, La, Mouratidou, T, Nova, E, Romeo, J, Veses, A, Zapatera, B, Pozo, T, Martínez, D, Béghin, L, Iliescu, C, Von Berlepsch, J, Sichert Hellert, W, Koeppen, E, Molnar, D, Erhardt, E, Csernus, K, Török, K, Bokor, S, Nagy, E, Kovács, O, Répasi, J, Codrington, C, Plada, M, Papadaki, A, Sarri, K, Viskadourou, A, Hatzis, C, Kiriakakis, M, Tsibinos, G, Vardavas, C, Sbokos, M, Protoyeraki, E, Fasoulaki, M, Stehle, P, Pietrzik, K, Spinneker, A, Al Tahan, J, Segoviano, M, Berchtold, A, Bierschbach, C, Blatzheim, E, Schuch, A, Pickert, P, Castillo, Mj, Gutiérrez, Á, Ortega, Fb, Ruiz, Jr, Artero, Eg, España, V, Jiménez Pavón, D, Chillón, P, Sánchez Muñoz, C, Cuenca, M, Arcella, D, Azzini, E, Barison, E, Bevilacqua, N, Buonocore, P, Catasta, G, Censi, L, Ciarapica, D, D'Acapito, P, Galfo, M, Le Donne, C, Leclercq, C, Maiani, G, Mauro, B, Mistura, L, Pasquali, A, Piccinelli, R, Polito, A, Spada, R, Sette, S, Zaccaria, M, Roccaldo, R, Vitaglione, Paola, Montagnese, C, De Bourdeaudhuij, I, De Vriendt, T, Matthys, C, Vereecken, C, de Maeyer, M, Ottevaere, C, Phillipp, K, Dietrich, S, Kubelka, B, Boriss Riedl, M, Manios, Y, Grammatikaki, E, Bouloubasi, Z, Cook, Tl, Eleutheriou, S, Consta, O, Moschonis, G, Katsaroli, I, Kraniou, G, Papoutsou, S, Keke, D, Petraki, I, Bellou, E, Tanagra, S, Kallianoti, K, Argyropoulou, D, Kondaki, K, Tsikrika, S, Karaiskos, C, Meirhaeghe, A, Hagströmer, M, Wennlöf, Ah, Hallström, L, Patterson, E, Kwak, L, Rizzo, N, Sánchez Molero, J, Picó, E, Navarro, M, Viadel, B, Carreres, Je, Merino, G, Sanjuán, R, Lorente, M, Sánchez, Mj, Thomas, S, Allchurch, E, Burgess, P, Astrom, A, Sverkén, A, Broberg, A, Masson, A, Lehoux, C, Brabant, P, Pate, P, Fontaine, L, Sebok, A, Kuti, T, Hegyi, A, Maldonado, C, Llorente, A, García, E, von Fircks, H, Hallberg, Ml, Messerer, M, Larsson, M, Fredriksson, H, Adamsson, V, Börjesson, I, Fernández, L, Smillie, L, Wills, J, Valtueña, J, Albers, U, Pedrero, R, Palacios, G, Meléndez, A, Benito, Pj, Lorente, Jj, Cañada, D, Urzanqui, A, Ortiz, Jc, Fuentes, F, Torres, Rm, and Navarro, P.

Subjects
Male, medicine.medical_specialty, Adolescent, Hydrocortisone, medicine.medical_treatment, Inflammation, Adolescents, Leukocyte Count, Immune system, Sex Factors, Internal medicine, White blood cell, Surveys and Questionnaires, medicine, Gender differences, Humans, Circadian rhythm, Th1/Th2, Sleep duration, business.industry, Monocyte, Interleukins, Immune cell profile, General Medicine, Sleep in non-human animals, Lymphocyte Subsets, Cytokine, medicine.anatomical_structure, Endocrinology, Cytokines, Female, Cytokine balance, medicine.symptom, business, Sleep, CD8
Abstract

BACKGROUND: Sleep patterns face important changes during adolescence. This can have implications for the immune system, which is regulated by the sleep-wake cycle; however, most studies relating sleep and immune system have been conducted on adults. OBJECTIVE: To study the relationships between sleep duration, immune cell counts, and cytokines in European adolescents participating in the HELENA Cross-Sectional Study. METHODS: Adolescents (12.5-17.5¿years; n¿=¿933; 53.9% girls) were grouped according to self-reported sleep duration into

Published
2014

3. Reliability and validity of the Adolescent Stress Questionnaire in a sample of European adolescents--the HELENA study

Author

De Vriendt, Tineke, Clays, Els, Moreno, Luis A, Bergman, Patrick, Vicente Rodriguez, Germán, Nagy, Eniko, Dietrich, Sabine, Manios, Yannis, De Henauw, Stefaan, Moreno LA, Gottrand F, De Henauw S, González Gross M, Gilbert C, Kafatos A, Libersa C, Castelló S, Kersting M, Sjöstrom M, Molnár D, Dallongeville J, Hall G, Maes L, Scalfi L, Meléndez P, Fleta J, Casajús JA, Rodríguez G, Tomás C, Mesana MI, Vicente Rodríguez G, Villarroya A, Gil CM, Ara I, Revenga J, Lachen C, Fernández Alvira J, Bueno G, Lázaro A, Bueno O, León JF, Jesús M, Bueno M, Pablo Rey López J, Iglesia I, Velasco P, Bel S, Gracia Marco LA, Mouratidou T, Wärnberg J, Nova E, Gómez S, Esperanza Díaz L, Romeo J, Veses A, Zapatera B, Pozo T, Martínez D, Beghin L, Iliescu C, Von Berlepsch J, Sichert Hellert W, Koeppen E, Molnar D, Erhardt E, Csernus K, Török K, Bokor S, Nagy E, Kovács O, Répasi J, Codrington C, Plada M, Papadaki A, Sarri K, Viskadourou A, Hatzis C, Kiriakakis M, Tsibinos G, Vardavas C, Sbokos M, Protoyeraki E, Fasoulaki M, Stehle P, Pietrzik K, Breidenassel C, Spinneker A, Al Tahan J, Segoviano M, Berchtold A, Bierschbach C, Blatzheim E, Schuch A, Pickert P, Castillo MJ, Ortega FB, Ruiz JR, Artero G, España V, Jiménez Pavón D, Chillón P, Sánchez Muñoz C, Arcella D, Azzini E, Barrison E, Bevilacqua N, Buonocore P, Catasta G, Censi L, Ciarapica D, D'Acapito P, Ferrari M, Galfo M, Le Donne C, Leclercq C, Maiani G, Mauro B, Mistura L, Pasquali A, Piccinelli R, Polito A, Spada R, Sette S, Zaccaria M, Montagnese C, De Bourdeaudhuij I, De Vriendt T, Matthys C, Vereecken C, de Maeyer M, Ottevaere C, Huybrechts I, Widhalm K, Dietrich S, Kubelka B, Boriss Riedl M, Manios Y, Grammatikaki E, Bouloubasi Z, Cook TL, Eleutheriou S, Consta O, Moschonis G, Katsaroli I, Kraniou G, Papoutsou S, Keke D, Petraki I, Bellou E, Tanagra S, Argyropoulou D, Kondaki K, Tsikrika S, Karaiskos C, Meirhaeghe A, Hagströmer M, Hurtig Wennlöf A, Hallström L, Patterson E, Kwak L, Rizzo N, Sánchez Molero J, Picó E, Navarro M, Viadel B, Carreres JE, Merino G, Sanjuán R, Lorente M, José Sánchez M, Thomas S, Allchurch E, Burgess P, Astrom A, Sverkén A, Broberg A, Masson A, Lehoux C, Brabant P, Pate P, Fontaine L, Sebok A, Kuti T, Hegyi A, Maldonado C, Llorente A, García E, Fircks Hv, Lilja Hallberg M, Larsson M, Fredriksson H, Adamsson V, Börjesson I, Fernández L, Smillie L, Wills J, Valtueña J, Albers U, Pedrero R, Meléndez A, Benito PJ, José Gómez Lorente J, Cañada D, Urzanqui A, María Torres R, Navarro P., VITAGLIONE, PAOLA, European Commission, Research Foundation - Flanders, De Vriendt, Tineke, Clays, El, Moreno, Luis A, Bergman, Patrick, Vicente Rodriguez, Germán, Nagy, Eniko, Dietrich, Sabine, Manios, Yanni, De Henauw, Stefaan, Moreno, La, Gottrand, F, De Henauw, S, González Gross, M, Gilbert, C, Kafatos, A, Libersa, C, Castelló, S, Kersting, M, Sjöstrom, M, Molnár, D, Dallongeville, J, Hall, G, Maes, L, Scalfi, L, Meléndez, P, Fleta, J, Casajús, Ja, Rodríguez, G, Tomás, C, Mesana, Mi, Vicente Rodríguez, G, Villarroya, A, Gil, Cm, Ara, I, Revenga, J, Lachen, C, Fernández Alvira, J, Bueno, G, Lázaro, A, Bueno, O, León, Jf, Jesús, M, Bueno, M, Pablo Rey López, J, Iglesia, I, Velasco, P, Bel, S, Gracia Marco, La, Mouratidou, T, Wärnberg, J, Nova, E, Gómez, S, Esperanza Díaz, L, Romeo, J, Veses, A, Zapatera, B, Pozo, T, Martínez, D, Beghin, L, Iliescu, C, Von Berlepsch, J, Sichert Hellert, W, Koeppen, E, Molnar, D, Erhardt, E, Csernus, K, Török, K, Bokor, S, Nagy, E, Kovács, O, Répasi, J, Codrington, C, Plada, M, Papadaki, A, Sarri, K, Viskadourou, A, Hatzis, C, Kiriakakis, M, Tsibinos, G, Vardavas, C, Sbokos, M, Protoyeraki, E, Fasoulaki, M, Stehle, P, Pietrzik, K, Breidenassel, C, Spinneker, A, Al Tahan, J, Segoviano, M, Berchtold, A, Bierschbach, C, Blatzheim, E, Schuch, A, Pickert, P, Castillo, Mj, Ortega, Fb, Ruiz, Jr, Artero, G, España, V, Jiménez Pavón, D, Chillón, P, Sánchez Muñoz, C, Arcella, D, Azzini, E, Barrison, E, Bevilacqua, N, Buonocore, P, Catasta, G, Censi, L, Ciarapica, D, D'Acapito, P, Ferrari, M, Galfo, M, Le Donne, C, Leclercq, C, Maiani, G, Mauro, B, Mistura, L, Pasquali, A, Piccinelli, R, Polito, A, Spada, R, Sette, S, Zaccaria, M, Vitaglione, Paola, Montagnese, C, De Bourdeaudhuij, I, De Vriendt, T, Matthys, C, Vereecken, C, de Maeyer, M, Ottevaere, C, Huybrechts, I, Widhalm, K, Dietrich, S, Kubelka, B, Boriss Riedl, M, Manios, Y, Grammatikaki, E, Bouloubasi, Z, Cook, Tl, Eleutheriou, S, Consta, O, Moschonis, G, Katsaroli, I, Kraniou, G, Papoutsou, S, Keke, D, Petraki, I, Bellou, E, Tanagra, S, Argyropoulou, D, Kondaki, K, Tsikrika, S, Karaiskos, C, Meirhaeghe, A, Hagströmer, M, Hurtig Wennlöf, A, Hallström, L, Patterson, E, Kwak, L, Rizzo, N, Sánchez Molero, J, Picó, E, Navarro, M, Viadel, B, Carreres, Je, Merino, G, Sanjuán, R, Lorente, M, José Sánchez, M, Thomas, S, Allchurch, E, Burgess, P, Astrom, A, Sverkén, A, Broberg, A, Masson, A, Lehoux, C, Brabant, P, Pate, P, Fontaine, L, Sebok, A, Kuti, T, Hegyi, A, Maldonado, C, Llorente, A, García, E, Fircks, Hv, Lilja Hallberg, M, Larsson, M, Fredriksson, H, Adamsson, V, Börjesson, I, Fernández, L, Smillie, L, Wills, J, Valtueña, J, Albers, U, Pedrero, R, Meléndez, A, Benito, Pj, José Gómez Lorente, J, Cañada, D, Urzanqui, A, María Torres, R, Navarro, P., and Matthys, Christophe

Subjects
Male, medicine.medical_specialty, Adolescent, Intraclass correlation, Reproducibility of Result, CHILDREN, DETERMINANTS, SALIVARY ALPHA-AMYLASE, Stress, Cronbach's alpha, Surveys and Questionnaires, Medicine and Health Sciences, medicine, Criterion validity, Surveys and Questionnaire, Humans, Obesity, Psychiatry, Child, Reliability (statistics), GENDER-DIFFERENCES, business.industry, CORTISOL, Phychological, lcsh:Public aspects of medicine, PSYCHOPATHOLOGY, Public Health, Environmental and Occupational Health, Construct validity, Reproducibility of Results, HEALTHY LIFE-STYLE, lcsh:RA1-1270, METHODOLOGICAL ISSUES, Confirmatory factor analysis, Social Cla, Europe, INDIVIDUALS, Social Class, Scale (social sciences), NUTRITION, Female, business, Stress, Psychological, Human, Clinical psychology, Psychopathology, Research Article
Abstract

The HELENA Study Group: et al., [Background]: Since stress is hypothesized to play a role in the etiology of obesity during adolescence, research on associations between adolescent stress and obesity-related parameters and behaviours is essential. Due to lack of a well-established recent stress checklist for use in European adolescents, the study investigated the reliability and validity of the Adolescent Stress Questionnaire (ASQ) for assessing perceived stress in European adolescents., [Methods]: The ASQ was translated into the languages of the participating cities (Ghent, Stockholm, Vienna, Zaragoza, Pecs and Athens) and was implemented within the HELENA cross-sectional study. A total of 1140 European adolescents provided a valid ASQ, comprising 10 component scales, used for internal reliability (Cronbach α) and construct validity (confirmatory factor analysis or CFA). Contributions of socio-demographic (gender, age, pubertal stage, socio-economic status) characteristics to the ASQ score variances were investigated. Two-hundred adolescents also provided valid saliva samples for cortisol analysis to compare with the ASQ scores (criterion validity). Test-retest reliability was investigated using two ASQ assessments from 37 adolescents., [Results]: Cronbach α-values of the ASQ scales (0.57 to 0.88) demonstrated a moderate internal reliability of the ASQ, and intraclass correlation coefficients (0.45 to 0.84) established an insufficient test-retest reliability of the ASQ. The adolescents' gender (girls had higher stress scores than boys) and pubertal stage (those in a post-pubertal development had higher stress scores than others) significantly contributed to the variance in ASQ scores, while their age and socio-economic status did not. CFA results showed that the original scale construct fitted moderately with the data in our European adolescent population. Only in boys, four out of 10 ASQ scale scores were a significant positive predictor for baseline wake-up salivary cortisol, suggesting a rather poor criterion validity of the ASQ, especially in girls., [Conclusions]: In our European adolescent sample, the ASQ had an acceptable internal reliability and construct validity and the adolescents' gender and pubertal stage systematically contributed to the ASQ variance, but its test-retest reliability and criterion validity were rather poor. Overall, the utility of the ASQ for assessing perceived stress in adolescents across Europe is uncertain and some aspects require further examination., The HELENA Study takes place with the financial support of the European Community Sixth RTD Framework Programme (Contract FOOD-CT-2005-007034). Tineke De Vriendt is financially supported by the Research Foundation - Flanders (Grant number: 1.1.746.09.N.01).

Published
2010

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