Seasonality of Birth Weight in Singleton Full-term Births in Finland

Almond, D., Currie, J., & Duque, V. (2018). Childhood Circumstances and Adult Outcomes: Act II. Journal of Economic Literature, 56(4), 1360–1446. https://doi.org/10.1257/jel.20171164

Aradhya, S., Tegunimataka, A., Kravdal, Ø., Martikainen, P., Myrskylä, M., Barclay, K., & Goisis, A. (2023). Maternal age and the risk of low birthweight and pre-term delivery: A pan-Nordic comparison. International Journal of Epidemiology, 52(1),

–164. https://doi.org/10.1093/ije/dyac211

Bakhtsiyarava, M., Grace, K., & Nawrotzki, R. J. (2018). Climate, Birth Weight, and Agricultural Livelihoods in Kenya and Mali. American Journal of Public Health, 108(S2), S144–S150. https://doi.org/10.2105/AJPH.2017.304128

Barker, D. J. P. (2004). The Developmental Origins of Adult Disease. Journal of the American College of Nutrition, 23(sup6), 588S–595S. https://doi.org/10.1080/07315724.2004.10719428

Becker, S. (1991). Seasonal Patterns of Births and Conception Throughout the World. In A. W. Zorgniotti (Ed.), Temperature and Environmental Effects on the Testis (Vol. 286, pp. 59–72). Springer US. https://doi.org/10.1007/978-1-4684-5913-5_6

Beltran, A., Wu, J., & Laurent, O. (2013). Associations of Meteorology with Adverse Pregnancy Outcomes: A Systematic Review of Preeclampsia, Preterm Birth and Birth Weight. International Journal of Environmental Research and Public Health, 11(1), 91–172. https://doi.org/10.3390/ijerph110100091

Black, S. E., Devereux, P. J., & Salvanes, K. G. (2007). From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes. The Quarterly Journal of Economics, 122(1), 409–439. https://doi.org/10.1162/qjec.122.1.409

Calkins, K., & Devaskar, S. U. (2011). Fetal Origins of Adult Disease. Current Problems in Pediatric and Adolescent Health Care, 41(6), 158–176. https://doi.org/10.1016/j.cppeds.2011.01.001

CHARGE Consortium Hematology Working Group, Early Growth Genetics (EGG) Consortium, Horikoshi, M., Beaumont, R. N., Day, F. R., Warrington, N. M., Kooijman, M. N., Fernandez-Tajes, J., Feenstra, B., Van Zuydam, N. R., Gaulton, K. J., Grarup, N., Bradfield, J. P., Strachan, D. P., Li-Gao, R., Ahluwalia, T. S., Kreiner, E., Rueedi, R., Lyytikäinen, L.-P., … Freathy, R. M. (2016). Genome-wide associations for birth weight and correlations with adult disease. Nature, 538(7624), 248–252. https://doi.org/10.1038/nature19806

Chersich, M. F., Pham, M. D., Areal, A., Haghighi, M. M., Manyuchi, A., Swift, C. P., Wernecke, B., Robinson, M., Hetem, R., Boeckmann, M., & Hajat, S. (2020). Associations between high temperatures in pregnancy and risk of preterm birth, low birth weight, and stillbirths: Systematic review and meta-analysis. BMJ, m3811. https://doi.org/10.1136/bmj.m3811

Chodick, G., Flash, S., Deoitch, Y., & Shalev, V. (2009). Seasonality in Birth Weight: Review of Global Patterns and Potential Causes. Human Biology, 81(4), 463–477. https://doi.org/10.3378/027.081.0405

Chodick, G., Shalev, V., Goren, I., & Inskip, P. D. (2007). Seasonality in Birth Weight in Israel: New Evidence Suggests Several Global Patterns and Different Etiologies. Annals of Epidemiology, 17(6), 440–446. https://doi.org/10.1016/j.annepidem.2006.10.013

Currie, J., & Schwandt, H. (2013). Within-mother analysis of seasonal patterns in health at birth. Proceedings of the National Academy of Sciences, 110(30), 12265–12270. https://doi.org/10.1073/pnas.1307582110

Diouf, I., Charles, M. A., Blondel, B., Heude, B., & Kaminski, M. (2011). Discordant time trends in maternal body size and offspring birthweight of term deliveries in France between 1972 and 2003: Data from the French National Perinatal Surveys: Maternal weight and birthweight trends. Paediatric and Perinatal Epidemiology, 25(3), 210–217. https://doi.org/10.1111/j.1365-3016.2010.01188.x

Donahue, S. M. A., Kleinman, K. P., Gillman, M. W., & Oken, E. (2010). Trends in Birth Weight and Gestational Length Among Singleton Term Births in the United States: 1990–2005. Obstetrics & Gynecology, 115(2), 357–364. https://doi.org/10.1097/AOG.0b013e3181cbd5f5

Dorélien, A. (2019). The Effects of In Utero Exposure to Influenza on Birth and Infant Outcomes in the US. Population and Development Review, 45(3), 489–523. https://doi.org/10.1111/padr.12232

Ellenberg, A., Sarvilinna, N., Gissler, M., & Ulander, V. (2017). New guidelines for screening, diagnosing, and treating gestational diabetes – evaluation of maternal and neonatal outcomes in Finland from 2006 to 2012. Acta Obstetricia et Gynecologica Scandinavica, 96(3), 372–381. https://doi.org/10.1111/aogs.13074

Fong, K. C., Kosheleva, A., Kloog, I., Koutrakis, P., Laden, F., Coull, B. A., & Schwartz, J. D. (2019). Fine Particulate Air Pollution and Birthweight: Differences in Associations Along the Birthweight Distribution. Epidemiology, 30(5), 617–623. https://doi.org/10.1097/EDE.0000000000001039

Frisell, T., Öberg, S., Kuja-Halkola, R., & Sjölander, A. (2012). Sibling Comparison Designs: Bias From Non-Shared Confounders and Measurement Error. Epidemiology, 23(5). https://journals.lww.com/epidem/Fulltext/2012/09000/Sibling_Comparison_Designs__Bias_From_Non_Shared.11.aspx

Ghosh, R. E., Berild, J. D., Sterrantino, A. F., Toledano, M. B., & Hansell, A. L. (2018). Birth weight trends in England and Wales (1986–2012): Babies are getting heavier. Archives of Disease in Childhood – Fetal and Neonatal Edition, 103(3), F264–F270. https://doi.org/10.1136/archdischild-2016-311790

Grace, K., Verdin, A., Dorélien, A., Davenport, F., Funk, C., & Husak, G. (2021). Exploring Strategies for Investigating the Mechanisms Linking Climate and Individual-Level Child Health Outcomes: An Analysis of Birth Weight in Mali. Demography, 58(2), 499–526. https://doi.org/10.1215/00703370-8977484

Ha, S., Zhu, Y., Liu, D., Sherman, S., & Mendola, P. (2017). Ambient temperature and air quality in relation to small for gestational age and term low birthweight. Environmental Research, 155, 394–400. https://doi.org/10.1016/j.envres.2017.02.021

Hajdu, T., & Hajdu, G. (2021). Temperature, climate change, and birth weight: Evidence from Hungary. Population and Environment, 43(2), 131–148. https://doi.org/10.1007/s11111-021-00380-y

Heino, A., & Gissler, M. (2022). Nordic perinatal statistics 2020–Caesarean sections became more common in Finland and Sweden (Statistical Report 11/2022). Finnish Institute for Health and Welfare (THL). https://www.julkari.fi/bitstream/handle/10024/144265/Nordic_perinatal_statistic_2020.pdf?sequence=1&isAllowed=y

Hellstrand, J., Nisén, J. & Myrskylä, M. (2020) All-time low period fertility in Finland: Demographic drivers, tempo effects, and cohort implications. Population Studies, 74(3), 315–329. https://doi.org/10.1080/00324728.2020.1750677

Hur, Y.-M. (2023). Secular Trends of Birth Weight in Twins and Singletons in South Korea from 2000 to 2020. Twin Research and Human Genetics, 1–6. https://doi.org/10.1017/thg.2023.16

Jensen, C. B., Gamborg, M., Raymond, K., McGrath, J., Sørensen, T. I. A., & Heitmann, B. L. (2015). Secular trends in seasonal variation in birth weight. Early Human Development, 91(6), 361–365. https://doi.org/10.1016/j.earlhumdev.2015.03.010

Kinnunen, T. I., Luoto, R., Gissler, M., & Hemminki, E. (2003). Pregnancy weight gain from 1960s to 2000 in Finland. International Journal of Obesity, 27(12), 1572–1577. https://doi.org/10.1038/sj.ijo.0802471

Koivunen, S., Torkki, A., Bloigu, A., Gissler, M., Pouta, A., Kajantie, E., & Vääräsmäki, M. (2017). Towards national comprehensive gestational diabetes screening – consequences for neonatal outcome and care. Acta Obstetricia et Gynecologica Scandinavica, 96(1), 106–113. https://doi.org/10.1111/aogs.13030

Kuehn, L., & McCormick, S. (2017). Heat Exposure and Maternal Health in the Face of Climate Change. International Journal of Environmental Research and Public Health, 14(8), 853. https://doi.org/10.3390/ijerph14080853

Lam, D. A., & Miron, J. A. (1994). Global Patterns of Seasonal Variation in Human Fertility. Annals of the New York Academy of Sciences, 709(1), 9–28. https://doi.org/10.1111/j.1749-6632.1994.tb30385.x

Liu, X., Behrman, J., Hannum, E., Wang, F., & Zhao, Q. (2022). Same environment, stratified impacts? Air pollution, extreme temperatures, and birth weight in South China. Social Science Research, 105, 102691. https://doi.org/10.1016/j.ssresearch.2021.102691

Morisaki, N., Esplin, M. S., Varner, M. W., Henry, E., & Oken, E. (2013). Declines in Birth Weight and Fetal Growth Independent of Gestational Length: Obstetrics & Gynecology, 121(1), 51–58. https://doi.org/10.1097/AOG.0b013e318278d014'

Oken, E. (2013). Secular Trends in Birthweight. In M. W. Gillman, P. D. Gluckman, & R. G. Rosenfeld (Eds.), Nestlé Nutrition Institute Workshop Series (Vol. 71, pp. 103–114). S. Karger AG. https://doi.org/10.1159/000342576

Olsen, S. H., Reynstind, D., Hallgrímsson, H., & Kesmodel, U. S. (2023). Birthweight and gestational age in the Faroe Islands: A comparison between birthweight and gestational age in the Faroe Islands and other Nordic countries. Acta Obstetricia et Gynecologica Scandinavica, 102(4), 506–515. https://doi.org/10.1111/aogs.14527

Poursafa, P., Keikha, M., & Kelishadi, R. (2015). Systematic review on adverse birth outcomes of climate change. Journal of Research in Medical Sciences: The Official Journal of Isfahan University of Medical Sciences, 20(4), 397.

Rantakallio, P. (1971). The effect of a northern climate on seasonality of births and the outcome of pregnancies. Acta Paediatrica Scandinavica Supplement, 218, 1–67.

Sankilampi, U., Hannila, M.-L., Saari, A., Gissler, M., & Dunkel, L. (2013). New population-based references for birth weight, length, and head circumference in singletons and twins from 23 to 43 gestation weeks. Annals of Medicine, 45(5–6), 446–454. https://doi.org/10.3109/07853890.2013.803739

Schack-Nielsen, L., Mølgaard, C., Sørensen, T. I. A., Greisen, G., & Michaelsen, K. F. (2006). Secular Change in Size at Birth from 1973 to 2003: National Data from Denmark. Obesity, 14(7), 1257–1263. https://doi.org/10.1038/oby.2006.143

Sjölander, A., Frisell, T., & Öberg, S. (2022). Sibling Comparison Studies. Annual Review of Statistics and Its Application, 9(1), 71–94. https://doi.org/10.1146/annurev-statistics-040120-024521

Strand, L. B., Barnett, A. G., & Tong, S. (2011). The influence of season and ambient temperature on birth outcomes: A review of the epidemiological literature. Environmental Research, 111(3), 451–462. https://doi.org/10.1016/j.envres.2011.01.023

Torche, F., & Conley, D. (2016). A Pound of Flesh: The Use of Birthweight as a Measure of Human Capital Endowment in Economics Research. In J. Komlos & I. R. Kelly (Eds.), The Oxford handbook of economics and human biology (pp. 632–649). Oxford University Press.

Torche, F., & Corvalan, A. (2010). Seasonality of Birth Weight in Chile: Environmental and Socioeconomic Factors. Annals of Epidemiology, 20(11), 818–826. https://doi.org/10.1016/j.annepidem.2010.08.005

Tustin, K., Gross, J., & Hayne, H. (2004). Maternal exposure to first-trimester sunshine is associated with increased birth weight in human infants. Developmental Psychobiology, 45(4), 221–230. https://doi.org/10.1002/dev.20030