Official statistics reveal significant regional disparities in where drug-related fatalities are taking place. Here, we list the 12 NHS health boards in Scotland with the highest death rates - which are based on a five-year average to reduce year-to-year fluctuations.

1. Greater Glasgow & Clyde
The Greater Glasgow & Clyde health board - which includes Renfrewshire and Inverclyde - has the highest rate of drug deaths at 0.23 per 1,000 of the population
John Devlin

2. Tayside
The Tayside health board, which includes the city of Dundee, had the second highest rate of drug deaths at 0.18 per 1,000 people
John Devlin

3. Ayrshire & Arran
The Ayrshire & Arran health board, which includes the town of Ayr, has the third highest rate of deaths at 0.17 per 1,000 people
Robert Perry

4. Lanarkshire
The Lanarkshire health board, which includes the town of Coatbridge, has a death rate from drugs of 0.15 per 1,000 people
Robert Perry
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