Table 1.
De Koning 2020 [13] |
Infante 2017 [12] |
Infante 2015 [9] |
Horeweg 2014 [10] |
Aberle 2011 [11] |
|
---|---|---|---|---|---|
Mean Age | 58 yo | 61 yo | 64 yo | 58 yo | NR |
Male Sex | All | 2890 | NR | 5999 | 15,770 |
Smoking status * | All | 2344 | 714 | 3959 | 12,862 |
Mean p/y ** | 38 | 40 | 47.3 | 38 | NR |
Patients | 6583 | 3640 | 1264 | 7155 | 27,722 |
* Current smoker was defined as a person who had smoked cigarettes during the last 2 weeks. ** Calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person had smoked. Yo = year old; NR = not reported. The studies come from different countries, the largest from the United States [11,13] and others from Europe, including Italy [9,12] and The Netherlands [10]. All articles are randomized trials, 3 with a control arm.