Summary Globally, secondhand smoke was the 13th-leading Level 3 risk factor for deaths in 2019, accounting for 1·30 million (95% UI 1·01–1·61) deaths. It contributed to 37·0 million (28·6–45·1) DALYs, with 11·2% of the burden seen among children under the age of 5 years.
Definition This risk factor refers to current exposure to secondhand tobacco smoke at home, at work, or in other public places. Only non-daily smokers are considered to be exposed to secondhand smoke.
Total sources | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Exposure | 721 | |||||||||||
Relative risk | 232 | |||||||||||
Table 1:
Total sources used in GBD 2019 estimation
What is new in GBD 2019?
- •Daily smoking prevalence, cigarettes per smoker, and SDI numbers, which are the key inputs in the secondhand smoke model, were updated with GBD 2019 estimates in order to keep results internally consistent.
Deaths
|
YLLs
|
YLDs
|
DALYs
|
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number
(millions) |
Rate (per
100 000) |
Number
(millions) |
Rate (per
100 000) |
Number
(millions) |
Rate (per
100 000) |
Number
(millions) |
Rate (per
100 000) |
|||||
2019 | ||||||||||||
Both Sexes | 1·30 (1·01 to 1·61) |
16·5 (12·8 to 20·4) |
31·5 (24·2 to 38·8) |
396·4 (304·5 to 488·7) |
5·51 (3·25 to 8·11) |
66·9 (39·6 to 98·2) |
37·0 (28·6 to 45·1) |
463·3 (356·4 to 565·4) |
||||
Females | 0·694 (0·540 to 0·859) |
16·1 (12·5 to 19·9) |
16·2 (12·7 to 20·1) |
392·8 (303·0 to 491·7) |
3·44 (2·08 to 4·97) |
80·0 (48·5 to 115·9) |
19·7 (15·3 to 24·1) |
472·8 (364·7 to 580·5) |
||||
Males | 0·611 (0·466 to 0·755) |
17·2 (13·0 to 21·3) |
15·3 (11·6 to 19·0) |
402·3 (301·9 to 499·6) |
2·08 (1·17 to 3·12) |
53·1 (30·3 to 79·2) |
17·3 (13·4 to 21·3) |
455·4 (349·3 to 560·9) |
||||
Percentage change 2010-19 | ||||||||||||
Both Sexes | 12·8% (5·9 to 20·1) |
–12·1% (–17·5 to –6·6) |
0·7% (–6·9 to 8·9) |
–17·3% (–23·3 to –11·1) |
30·2% (24·8 to 34·9) |
4·4% (–0·1 to 8·0) |
4·2% (–3·5 to 11·8) |
–14·7% (–20·6 to –8·7) |
||||
Females | 13·4% (4·5 to 23·4) |
–11·7% (–18·7 to –4·1) |
1·7% (–7·3 to 11·2) |
–16·8% (–23·7 to –9·2) |
30·1% (24·7 to 34·9) |
4·6% (0·1 to 8·4) |
5·8% (–2·8 to 14·2) |
–13·8% (–20·4 to –7·1) |
||||
Males | 12·1% (3·1 to 21·9) |
–12·8% (–19·4 to –5·3) |
–0·4% (–8·8 to 8·6) |
–17·8% (–24·3 to –10·6) |
30·4% (23·3 to 36·4) |
3·8% (–1·8 to 8·6) |
2·5% (–5·9 to 11·3) |
–15·7% (–22·2 to –9·0) |
||||
Numbers in parentheses are 95% uncertainty intervals. |
Table 2:
Attributable global deaths, YLLs, YLDs, and DALYs in counts and age-standardised rates for both sexes combined, females, and males, 2019, with percentage change between 2010 and 2019
Deaths | YLLs | YLDs | DALYs | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1990 | 17th | 14th | 21st | 14th | ||||||||
2010 | 16th | 17th | 18th | 17th | ||||||||
2019 | 13th | 17th | 17th | 16th | ||||||||
Table 3:
Rank among attributable Level 3 risks plus most detailed Level 2 risks of global deaths, YLLs, YLDs, and DALYs in 1990, 2010, and 2019 for both sexes combined

Figure 1:
Composition of attributable global DALYs by constituent Level 2 causes for both sexes combined, 2019

Figure 2:
Composition of attributable global DALYs by YLLs and YLDs, age group, and sex, 2019


Figure 3:
Age-standardised all-cause SEV by location, both sexes combined, 2019


Figure 4:
Percentage change in all-cause age-standardised SEV by SDI, both sexes combined, 1990–2019

Figure 5:
Percentage of population exposed to risk factor, both sexes combined, 2019

Figure 6:
All-cause mortality relative risk, both sexes combined, 2019