Appendix Table 4.
Characteristics of included studies.
| Relative benefit (95% CI) of all-cause mortality | Relative benefit (95% CI) of lung cancer mortality | Lung cancer mortality risk per 100 000 person-years (95% CI) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trial (Publication) | Type of Intervention | Country | Sample Size (n) | Age range (years) | Enrollment period | Median pack-years | Median Follow-up (years) | Hazard Ratio (95% CI) | Relative Risk (95% CI) | Hazard Ratio (95% CI) | Relative Risk (95% CI) | Control | Intervention | ARR per 100 000 person-years (95% CI) |
| NLST (NLST 2019) | Three yearly LDCT screening rounds (vs three yearly single-view CXR) | United States | 53452 | 55–74 | 2002–2004 | 48 | 12.3 | Not reported | 0.97 (0.94–1.01) | Not reported | 0.92 (0.85–1.00) | Person-time not reported | Person-time not reported | Person-time not reported |
| LUSI (Becker 2020) | Baseline LDCT + four subsequent yearly LDCT screening rounds (vs no screening) | Germany | 4052 | 50–69 | 2007–2011 | Not reported | 8.8 | 0.99 (0.79–1.25) | 0.98a (0.79–1.22)a | 0.74 (0.46–1.19) | 0.72a (0.45–1.16)a | Person-time not reported | Person-time not reported | Person-time not reported |
| MILD (Pastorino 2019) | LDCT every 12 months or 24 months (vs no screening) | Italy | 4099 | 49–75 | 2005 | 39 | 10 | 0.80 (0.62–1.03) | 0.94a (0.73–1.20)a | 0.61 (0.39–0.95) | 0.73a (0.47–1.12)a | 247 (176–336)a | 173 (124–236)a | 73.5 (−17.2–164)a |
| NELSON (De Koning 2020) | Baseline LDCT + subsequent LDCT screening at year 1, 3, and 5.5 (vs no screening) | Netherlands | 13195 (men only) | 50–74 | 2003–2005 | 38 | 10 | Not reported | 1.01 (0.92–1.11) | Not reported | 0.76 (0.61–0.94) | 330 (286–378)a | 250 (213–293)a | 79.3 (19.5–139.0)a |
| ITALUNG (Paci 2017) | Annual LDCT for 4 years (vs no screening) | Italy | 3206 | 55–69 | 2004–2006 | 40 | 9.3 | Not reported | 0.83 (0.67–1.03) | Not reported | 0.70 (0.47–1.03) | 421 (321–542)a | 293 (212–395)a | 128 (−10 to 265)a |
| UKLS (Field 2021) | Baseline LDCT only (vs no screening) | United Kingdom | 3968 | 50–75 | 2011–2013 | Not reported | 7.3 | Not reported | 0.91 (0.77–1.09) | Not reported | 0.65 (0.41–1.02) | 330a (242–441)a | 213a (144–304)a | 117a (−5 to 239)a |
| DANTE (Infante 2015) | Baseline LDCT + four subsequent yearly LDCT screening rounds (vs no screening) | Italy | 2450 | 60–74 | 2001–2006 | 45 | 8.35 | 0.947 (0.769–1.165) | 0.96a (0.79–1.16)a | 0.993 (0.688–1.433) | 1.01a (0.70–1.44)a | 544 (410–709) | 543 (413–700) | 1.81 (−198 to 201)a |
| DLCST (Wille 2016) | Baseline LDCT + four subsequent yearly LDCT screening rounds (vs no screening) | Denmark | 4104 | 50–70 | 2004–2006 | 35 | 9.80 | 1.02 (0.82–1.27) | 1.01a (0.82–1.25)a | 1.03 (0.66–1.60) | 1.03a (0.66–1.60)a | 194 (138–267)a | 200 (143–274)a | −6.22 (−94.4 to 82.0)a |
Abbreviations: CI=confidence interval; NLST = United States National Lung Screening Trial; LUSI = German Lung Cancer Screening Intervention Trial; MILD = Multicentric Italian Lung Detection Trial; NELSON = Dutch-Belgian Nederlands-Leuvens Longkanker Screenings Onderzoek trial; ITALUNG = Italian Lung Cancer Screening Trial; UKLS = United Kingdom Lung Cancer Screening Trial; DANTE = Italian Detection And screening of early lung cancer by Novel imaging TEchnology trial; DLCST = Danish Lung Cancer Screening Trial.
These values were calculated from published data; all other tabulated values were directly reported by the studies.