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SUBSTANCE USE AND SUBSTANCE USE<br />

DISORDERS<br />

Psychoactive substance use (including alcohol and illicit drugs) is an important risk fac<strong>to</strong>r for poor health<br />

globally. 11,73 The use of dependence producing substances may result in development of substance use<br />

disorders. The in<strong>to</strong>xicating effects of psychoactive substances, or their <strong>to</strong>xic effects on organs and tissues,<br />

or the mode of their administration, are also contributing fac<strong>to</strong>rs <strong>to</strong> the development of diseases, injuries<br />

and other health conditions. 12<br />

TRENDS<br />

In 2012, 5.9% of all deaths worldwide was attributable <strong>to</strong> alcohol<br />

consumption with a significant proportion of alcohol-attributable deaths<br />

<strong>from</strong> cardiovascular diseases and injuries (Figure 7.9). Worldwide alcohol<br />

consumption in 2010 was 6.2 litres of pure alcohol per person age<br />

15 or older: 38% of the world population age 15 or older had drunk<br />

alcohol in the past 12 months, and 16% engaged in heavy episodic<br />

drinking. 11 There is considerable global variation (Figure 7.10), but<br />

no clear global trend between 2005 and 2010 could be observed in<br />

alcohol per capita consumption.<br />

It is estimated that in 2013, some 27 million people in the world<br />

suffered <strong>from</strong> drug use disorders, and almost half of them (12.2 million)<br />

injected drugs of which an estimated 1.65 million were living with<br />

HIV. 12 About 5% of the population between ages 15 and 64 used illicit<br />

drugs in 2013. Since 2006, the number of people using illicit drugs has<br />

increased by 38 million, while the number of problem users remained<br />

fairly constant at 27 million since 2008.<br />

Figure 7.9<br />

Distribution of alcohol-attributable deaths, by broad cause category, 2012 11<br />

Neonatal conditions<br />

0.1%<br />

Intentional injuries<br />

8.7%<br />

Unintentional<br />

injuries<br />

17.1%<br />

Infectious<br />

diseases<br />

8.0%<br />

Gastrointestinal<br />

diseases<br />

16.2%<br />

Cancers<br />

12.5%<br />

Neuropsychiartric<br />

disorders<br />

4.0%<br />

Cardiovascular<br />

diseases and<br />

diabetes<br />

33.4%<br />

Figure 7.10<br />

Total alcohol per capita (15+ years) consumption in litres of pure alcohol, 2010 74 0 1700 3400<br />

Per capita consumption (litres)<br />

Per capita consumption (litres)<br />

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