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. 2020 Jun 8;18:229. doi: 10.1186/s12967-020-02399-5

Table 2.

Smoking and sleep habits before and during COVID-19 emergency

Smoking pre-COVID-19 Smoking during COVID-19
No 2646 (74.9) 2762 (78.2)
< 5 cigarettes/day 313 (8.9) 289 (8.2)
5–10 cigarettes/day 295 (8.3) 223 (6.3)
> 10 cigarettes/day 279 (7.9) 259 (7.3)
Sleep habits pre-COVID-19 Sleep habits during COVID-19
< 7 h/night 1722 (48.7) 1275 (36.1)
7–9 h/night 1763 (49.9) 1935 (54.8)
> 9 h/night 48 (1.4) 323 (9.1)

Values are expressed as number and percentage (n(%))