Table 1 Summary of included references evaluating risk factors for cholangiocarcinoma
Reference | Year | Country | Source of patients or samples | Study design | Sample size: cases/controls | Risk factor categories reported | Measure of effect |
|---|---|---|---|---|---|---|---|
Parkin et al. [22] | 1991 | Thailand | Maharat Nakorn Ratchasima Hospital, Ubon Ratchathani Hospital, National Cancer Institute | case-control | 103/103 | behaviors, socioeconomics, diet, immune response, other infection | odds ratio |
Itoh et al. [35] | 1994 | Thailand/ Japan | Khon Kaen province hospitals, Japan | case-control | 47/68 | immune response, gender | mean or proportion difference |
Haswell-Elkins et al. [46] | 1994 | Thailand | Villages in Khon Kaen and Mahasarkham provinces | cross-sectional survey | 15 CCA cases of 1807 patients screened | gender | odds ratio |
Honjo et al. [23] | 2005 | Thailand | Nakhon Phanom province hospitals | case-control | 129/129 | behaviors, socioeconomics, diet, genetics, treatment | odds ratio |
Jinawath et al. [31] | 2006 | Thailand/ Japan | Srinagarind Hospital and Kyoto University Hospital | case-control | 20/10 | genetics | median gene expression |
Marahatta et al. [55] | 2006 | Thailand | LFCRC Repositorya | case-control | 30/30 | genetics | odds ratio |
Prawan et al. [29] | 2005 | Thailand | Srinagarind Hospital | case-control | 216/233 | genetics | odds ratio |
Poomphakwaen et al. [2] | 2009 | Thailand | Khon Kaen Cohort Study | nested case-control | 108/108 | behaviors, diet, treatment, genetics | odds ratio |
Srivatanakul et al. [38] | 2010 | Thailand | Nakhon Phanom province hospitals | case-control | 106/106 | other infections, immune response | odds ratio |
Songserm et al. [27] | 2011 | Thailand | Khon Kaen Cohort Study | nested case-control | 219/438 | genetics, diet, socioeconomics | odds ratio |
Sripa et al. [37] | 2012 | Thailand | Khon Kaen area villages, non-OV endemic Thailand, LFCRC Repositorya | case-control | 121/21 | immune response | odds ratio |
Yongvanit et al. [32] | 2012 | Thailand | Khon Kaen province hospitals | case-control | 13/10 | genetics | mean difference |
Songserm et al. [24] | 2012 | Thailand | Khon Kaen Cohort Study | nested case-control | 219/438 | behaviors, socioeconomics, diet, genetics | odds ratio |
Zeng et al. [30] | 2013 | Thailand | Ubon Ratchathani Cancer Center Hospital | case-control | 105/105 | genetics | odds ratio |
Manwong et al. [25] | 2013 | Thailand | Sappasit Prasong Hospital and Ubon Ratchathani Cancer Center | case-control | 123/123 | socioeconomics, diet, treatment, behaviors, immune response | odds ratio |
Plieskatt et al. [33] | 2014 | Thailand | LFCRC Repositorya | case-control | 16/13 | genetics | mean difference |
Songserm et al. [26] | 2014 | Thailand | Khon Kaen Cohort Study | case-control | 219/438 | behaviors, genetics | odds ratio |
Prayong et al. [34] | 2014 | Thailand | Srinagarind Hospital and community | case-control | 79/80 | genetics | odds ratio |