PMID- 29414456 OWN - NLM STAT- MEDLINE DCOM- 20181126 LR - 20181126 IS - 1532-3064 (Electronic) IS - 0954-6111 (Linking) VI - 135 DP - 2018 Feb TI - Smoking status and cognitive performance among vocational school students in Beijing, China. PG - 8-11 LID - S0954-6111(17)30418-3 [pii] LID - 10.1016/j.rmed.2017.12.008 [doi] AB - INTRODUCTION: In countries where smoking is associated with lower socioeconomic status, smokers tend to perform worse on cognitive tasks than non-smokers. China is now undergoing a similar process with a recent study showing that there is a reduced cognitive performance in middle aged but not in elderly smokers. We examined the links between smoking status and cognitive functioning among vocational school students in Beijing, China. METHODS: A total of 213 students aged 16-20 (98 smokers and 115 non-smokers) were recruited from three vocational schools in Beijing. Participants completed three subtests of Wechsler Adult Intelligence Scale (WAIS) (information, arithmetic, digit span) and Dysexecutive Questionnaire (DEX). Smokers also completed a cigarette smoking questionnaire and Fagerstrom Test of Nicotine Dependence (FTND). RESULTS: Smokers performed worse than non-smokers in tests of arithmetic and digit span forward (t = 4.25, 2.05, both P < .05). Scores on digit span backward did not differentiate smokers and non-smokers, but among smokers, the performance on this subtest was related to the age of starting smoking (r = 0.26, p < .001). Cognitive performance in smokers was not related to tobacco dependence or intensity of smoking. Compared to non-smokers, smokers had a higher total DEX score and higher scores on three of its five subscales (Inhibition, Knowing-doing dissociation and Social regulation, all p < .05). Another subscale, In-resistance, did not differentiate smokers and non-smokers, but differentiated smokers with lower and higher levels of nicotine dependence (t = -2.12, p < .05). CONCLUSION: Smokers performed worse on some cognitive tasks than non-smokers and scored higher on a questionnaire assessing executive dysfunction. CI - Copyright (c) 2017. Published by Elsevier Ltd. FAU - Hu, Pengjuan AU - Hu P AD - Tobacco Medicine and Tobacco Cessation Centre, China-Japan Friendship Clinical Medical School, Capital Medical University, Beijing, China; Department of Respiratory Medicine, Capital Medical University, Beijing, China. Electronic address: hupengjuan163@163.com. FAU - Huang, Lili AU - Huang L AD - Students' Affairs Division, Beijing Polytechnic, Beijing, China. Electronic address: 13520335438@163.com. FAU - Zhou, Shuang AU - Zhou S AD - Tobacco Medicine and Tobacco Cessation Centre, China-Japan Friendship Clinical Medical School, Capital Medical University, Beijing, China; Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China. Electronic address: zhoushuang07@126.com. FAU - Shi, Qiang AU - Shi Q AD - Tobacco Medicine and Tobacco Cessation Centre, China-Japan Friendship Clinical Medical School, Capital Medical University, Beijing, China; Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China. Electronic address: stones188@sina.com. FAU - Xiao, Dan AU - Xiao D AD - Tobacco Medicine and Tobacco Cessation Centre, China-Japan Friendship Clinical Medical School, Capital Medical University, Beijing, China; Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China. Electronic address: danxiao@263.net. FAU - Wang, Chen AU - Wang C AD - Department of Respiratory Medicine, Capital Medical University, Beijing, China; Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, China-Japan Friendship Hospital, Beijing, China; Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China. Electronic address: cyh-birm@263.net. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171216 PL - England TA - Respir Med JT - Respiratory medicine JID - 8908438 SB - IM MH - Adolescent MH - Beijing/epidemiology MH - China/epidemiology MH - Cognition/*physiology MH - Female MH - Humans MH - Male MH - Schools/statistics & numerical data MH - Smoking/*adverse effects/epidemiology/*psychology MH - Students/*psychology MH - Tobacco Use Disorder/psychology MH - Wechsler Scales/standards MH - Young Adult OTO - NOTNLM OT - Cognitive functioning OT - Smoking OT - Tobacco dependence OT - Vocational school students EDAT- 2018/02/08 06:00 MHDA- 2018/11/27 06:00 CRDT- 2018/02/08 06:00 PHST- 2017/11/22 00:00 [received] PHST- 2017/12/12 00:00 [revised] PHST- 2017/12/13 00:00 [accepted] PHST- 2018/02/08 06:00 [entrez] PHST- 2018/02/08 06:00 [pubmed] PHST- 2018/11/27 06:00 [medline] AID - S0954-6111(17)30418-3 [pii] AID - 10.1016/j.rmed.2017.12.008 [doi] PST - ppublish SO - Respir Med. 2018 Feb;135:8-11. doi: 10.1016/j.rmed.2017.12.008. Epub 2017 Dec 16.