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Jun Hyun Hwang 3 Articles
Age at Smoking Initiation and Subsequent Smoking Among Korean Adolescent Smokers
Jun Hyun Hwang, Soon-Woo Park
J Prev Med Public Health. 2014;47(5):266-272.   Published online September 12, 2014
DOI: https://doi.org/10.3961/jpmph.14.032
  • 12,491 View
  • 126 Download
  • 26 Crossref
AbstractAbstract PDF
Objectives
The aim of this study was to investigate the relationship between age at cigarette smoking initiation and smoking level among adolescent current smokers. Methods: In 2007, students from one or two classes of the 10th or 11th grade were randomly selected using the probability proportional to size sampling method. In total, 743 current smokers were included. Multiple logistic regression was used to determine the association between age at smoking initiation and smoking level as either frequent, daily, or heavy smokers. Results: The adjusted odds ratios for each smoking level were significantly higher for younger ages of smoking initiation than those for older ages of initiation were (p for trend <0.001). Compared with the students who started smoking in grades 10 to 11, the adjusted odds ratios for frequent, daily, and heavy smokers increased from 2.24 (95% confidence interval [CI], 1.30 to 3.87) to 3.90 (95% CI, 2.02 to 7.56), from 1.56 (95% CI, 0.92 to 2.62) to 3.17 (95% CI, 1.70 to 5.92), and from 2.56 (95% CI, 1.21 to 5.42) to 5.67 (95% CI, 2.61 to 12.30) with younger ages of smoking initiation. Conclusions: Smoking frequency and amount were closely associated with age at smoking initiation. Therefore, smoking prevention programs should be initiated from the young adolescent period.
Summary

Citations

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    Nicotine and Tobacco Research.2023; 25(7): 1340.     CrossRef
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    Food and Nutrition Bulletin.2022; 43(1): 44.     CrossRef
  • Demographics, clinical characteristics and cognitive symptoms of heavy smokers and non-heavy smokers in Chinese male patients with chronic schizophrenia
    Shuochi Wei, Dongmei Wang, Huixia Zhou, Luyao Xia, Yang Tian, Qilong Dai, Rongrong Zhu, Wenjia Wang, Dachun Chen, Meihong Xiu, Li Wang, Xiangyang Zhang
    European Archives of Psychiatry and Clinical Neuroscience.2022; 272(7): 1325.     CrossRef
  • Assessing the Evidence on the Differential Impact of Menthol versus Non-menthol Cigarette Use on Initiation and Progression to Regular Smoking: A Systematic Review and Meta-analysis
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    Sunkyoung Jung, Sangshin Park
    Journal of Environmental Health Sciences.2022; 48(4): 216.     CrossRef
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    Mochamad Iqbal Nurmansyah, Yuyun Umniyatun, Miftahul Jannah, Agung Taufiqurrokhman Syiroj, Didin Nuruddin Hidayat
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    The European Journal of Public Health.2016; : ckw201.     CrossRef
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Association Between Gamma-Glutamyltransferase and Hypertension Incidence in Rural Prehypertensive Adults.
Jun Hyun Hwang, Ji Yeon Shin, Byung yeol Chun, Duk Hee Lee, Keon Yeop Kim, Wee hyun Park, Shung chull Chae
J Prev Med Public Health. 2010;43(1):18-25.
DOI: https://doi.org/10.3961/jpmph.2010.43.1.18
  • 4,597 View
  • 52 Download
  • 4 Crossref
AbstractAbstract PDF
OBJECTIVES
Prehypertension is associated with a higher risk of developing hypertension compared with normotension. Yet, factors predicting the development of hypertension among prehypertensive people are ill-understood. This prospective cohort study was performed to examine if serum gamma-glutamyltrasferase (GGT) within a normal range can predict the future risk of hypertension among prehypertensive adults. METHODS: Study subjects were 293 prehypertensive persons >30-years-of-age who participated in a community-based health survey in 2003 and who were followed up in 2008. Sex-specific quartiles of baseline serum GGT were used to examine association with 5-year hypertension incidence. RESULTS: Baseline serum GGT within normal range predicted the risk of developing hypertension for 5 years only in prehypertensive women. Adjusted relative risks were 1.0, 3.7, 3.6, and 6.0 according to quartiles of baseline serum GGT (P for trend <0.01). This pattern was similarly observed in non-drinkers. However, serum GGT was not associated with incident hypertension in men. Different from serum GGT, baseline serum alanine aminotransferase, another well-known liver enzyme, did not predict the risk of incident hypertension in both genders. CONCLUSIONS: Even though baseline serum GGT within normal range strongly predicted the future risk of hypertension, it was observed only in women, Although underlying mechanisms of this association are currently unclear, serum GGT can be used to select a high risk group of hypertension in prehypertensive women.
Summary

Citations

Citations to this article as recorded by  
  • Gamma-glutamyltransferase and risk of hypertension
    Setor K. Kunutsor, Tanefa A. Apekey, Bernard M.Y. Cheung
    Journal of Hypertension.2015; 33(12): 2373.     CrossRef
  • Endobiogeny: A Global Approach to Systems Biology (Part 1 of 2)
    Jean-Claude, Lapraz, Kamyar M. Hedayat
    Global Advances in Health and Medicine.2013; 2(1): 64.     CrossRef
  • Gamma-Glutamyltransferase Level and Risk of Hypertension: A Systematic Review and Meta-Analysis
    Cun-Fei Liu, Yu-Ting Gu, Hai-Ya Wang, Ning-Yuan Fang, Antony Bayer
    PLoS ONE.2012; 7(11): e48878.     CrossRef
  • Association between γ-glutamyltransferase and prehypertension
    XUZHEN QIN, GUODONG TANG, LING QIU, TAO XU, XINQI CHENG, SHAOMEI HAN, GUANGJIN ZHU, YAJUN LIU
    Molecular Medicine Reports.2012; 5(4): 1092.     CrossRef
The Association of Central Obesity with Type 2 Diabetes among Koreans according to the Serum Gamma-Glutamyltransferase Level: Korean Genome and Epidemiology Study.
Ji Yeon Shin, Jun Hyun Hwang, Jin Young Jeong, Sung Hi Kim, Jai Dong Moon, Sang Chul Roh, Young Wook Kim, Yangho Kim, Jong Han Leem, Young Su Ju, Young Seoub Hong, Eun Hee Ha, Yong Hwan Lee, Duk Hee Lee, Dong Hyun Kim
J Prev Med Public Health. 2009;42(6):386-391.
DOI: https://doi.org/10.3961/jpmph.2009.42.6.386
  • 5,327 View
  • 64 Download
  • 3 Crossref
AbstractAbstract PDF
OBJECTIVES
This cross-sectional study was performed to examine if the serum gamma-glutamyltransferase (GGT) level that is within its normal range is associated with the risk of type 2 diabetes and if the association between the waist hip ratio (WHR) and type 2 diabetes is different depending on the serum GGT levels. METHODS: The study subjects were 23,436 persons aged 40 years or older and who participated in regular health check-ups at 11 hospitals (males: 5,821, females: 17,615). The gender-specific quintiles of the serum GGT and WHR were used to examine the associations with type 2 diabetes. RESULTS: The serum GGT levels within their normal range were positively associated with type 2 diabetes only in women. The adjusted odds ratios (ORs) were 1.0, 1.0, 1.4, 2.1, and 2.5 according to the quintiles of the serum GGT (p(trend)<0.01). The WHR was more strongly associated with the prevalence of diabetes among the women with a high-normal serum GGT level as compared with those with a low-normal serum GGT level (p for interaction=0.02). For example, the adjusted ORs for women with a low normal serum GGT level were 1.0, 1.2, 1.5, 2.2, and 2.4 according to the quintiles of the WHR, while those figures were 1.0, 2.4, 3.6, 5.0, and 8.3 among the women with a high normal serum GGT level. However, in men, the serum GGT was very weakly associated with type 2 diabetes and the association between the WHR and type 2 diabetes was not different depending on the serum GGT level. CONCLUSIONS: Serum GGT within its normal range was positively associated with type 2 diabetes, and central obesity was more strongly associated with the prevalence of type 2 diabetes when the serum GGT level was high-normal. However, these associations were observed only in women, which is different from the previous findings. The stronger relation between central obesity and type 2 diabetes among women with a high-normal serum GGT level can be useful for selecting a group that is at high risk for type 2 diabetes irregardless of whatever the underlying mechanism is.
Summary

Citations

Citations to this article as recorded by  
  • Serum gamma-glutamyl transferase and risk of type 2 diabetes in the general Korean population: a Mendelian randomization study
    Youn Sue Lee, Yoonsu Cho, Stephen Burgess, George Davey Smith, Caroline L. Relton, So-Youn Shin, Min-Jeong Shin
    Human Molecular Genetics.2016; 25(17): 3877.     CrossRef
  • Different associations between obesity and impaired fasting glucose depending on serum gamma-glutamyltransferase levels within normal range: a cross-sectional study
    Nam Soo Hong, Jeong-Gook Kim, Yu-Mi Lee, Hyun-Woo Kim, Sin Kam, Keon-Yeop Kim, Ki-Su Kim, Duk-Hee Lee
    BMC Endocrine Disorders.2014;[Epub]     CrossRef
  • Endobiogeny: A Global Approach to Systems Biology (Part 1 of 2)
    Jean-Claude, Lapraz, Kamyar M. Hedayat
    Global Advances in Health and Medicine.2013; 2(1): 64.     CrossRef

JPMPH : Journal of Preventive Medicine and Public Health