Table 2.

Lung cancer incidence rates by time period and NCN status

Time period
0–23 mo24–59 mo60–84 mo
Spatial levelLung cancer number(ratea)RR (95% CI)Lung cancer number (ratea)RR (95% CI)Lung cancer number (ratea)RR (95% CI)
Person level
 No NCN100 (26.9)Referent233 (42.6)Referent117 (39.9)Referent
 Any NCN (4+ mm)368 (276)10.3 (8–13)180 (94.0)2.2 (1.8–2.7)73 (72.0)1.8 (1.4–2.4)
 All468413190
Lung level
 No NCN in lung108 (12.7)Referent252 (20.2)Referent122 (18.3)Referent
 Any NCN (4+ mm)341 (213)16.8 (14–21)142 (61.7)3.0 (2.5–3.7)54 (44.5)2.4 (1.8–3.4)
Lobe level
 No NCN in lobe126 (4.4)Referent269(6.5)Referent132 (5.8)Referent
 Any NCN (4+ mm)310 (166)38.0 (31–47)98 (36.6)5.7 (4.5–7.1)29 (21.0)3.5 (2.3–5.2)
  • aRate is per 10,000 person (or lung or lobe) years.