(Last updated May 6, 2021)
Latest update
| Date | Data version | Modifications to pooled data |
Apr 2015 |
1.5 |
Imputed missing education_levelmi1-5 |
May 2015 |
1.5 |
Corrected ICD codes for study 1, 2, 3, 4, 5, 8, 17, 21, 34, 35. Removed 18 cases from Germany-Heidelberg (due to the following reasons: a) a recurrent case and not incident b) had a competing diagnosis. c) diagnosis earlier than our original time window. Thus, exposure time variables would be influenced.) |
Jan 2016 |
1.5 |
Corrected subsite variables for ICD codes (C10.1 and 146.4) from oropharynx to larynx (variables updated are subtype subtype2 oropharynx larynx oropharynxscc larynxscc) |
Apr 2019 |
1.5 |
Corrected alcohol variables for the Seattle (1985-1995), Los Angeles, Seattle-LEO, and North Carolina (2006-2009) studies. Duration and frequency variables for non-drinkers were updated to be consistent (0). |
Dec 2020 |
1.6 |
Data errors updated. Pooled in East Asia Multicenter study 36. |