Table 1.
Characteristics of the included studies.
| Study ID | Country | Number of cases (female) |
Number of controls (female) |
Age mean ± SD (cases) yr |
Age mean ± SD (controls) |
Lung cancer confirmation | Allergic rhinitis confirmation | Patient recruitment period |
|---|---|---|---|---|---|---|---|---|
| Osann et al 2000 [16] |
United States | 98 (98) | 204 (204) | 61.7 | 62.6 | Histologically | Self-report (Interview) | July 1990-June 1993 |
| Schabath et al 2005 [17] |
United States | 1553 (736) | 1375 (675) | 61.8 ± 10.7 | 61.2 ± 9.7 | Histologically | Self-report (Interview) | August 1995-June 2003 |
| Gorlova et al 2006 [15] |
United States | 280 (189) | 242 (177) | 60.2 ± 12.7 | 61.9 ± 10.9 | Histologically | Self-report (Interview) | September 1995-December 2003 |
| Wang et al 2006[19] | Germany | 196 (UD) | 4271 (UD) | 63.8 ± 6.8 | 61.8 ± 6.6 | Histologically | IgE diagnosis | June 2000-December 2002 |
| Wu et al 2007[20] |
United States | 977 (453) | 977 (453) | 62.0 ± 9.8 | 61.2 ± 9.6 | Histologically | NR | NR |
| Spitz et al 2011[18] | United States | 451 (304) | 508 (318) | 61.6 ± 13.0 | 56.6 ± 13.1 | Histologically | NR | NR |
| El-Zein et al 2014[14] | Canada | 1169 (458) | 1486 (606) | Men: 64.1 ± 7.9 Women: 61.5 ± 9.3 |
Men: 65.0 ± 7.6 Women: 61.7 ± 9.3 |
Histologically | Self-report (Interview) | January 1996-December 1997 |
NR = not reported, UD = undetectable.ss