Bertl et al. [31]
|
Austria
|
2013
|
Cross-sectional
|
M + F
|
> 18
|
HNCs (oral cavity, nasopharynx, oropharynx, hypopharynx, or larynx)
|
Patients from outpatient cancer clinics
|
48
|
Tertiary hospital
|
< 12 months or ≥ 12 months
|
Moderate
|
Langevin et al. [4]
|
Greater-Boston
|
2006–2011
|
Case-series
|
M + F
|
≥ 18
|
OCs (tongue, salivary gland, gum, mouth), oropharynx and hypopharynx
|
Incident cases
|
441
|
Teaching hospital
|
At least annual, infrequent, rare or never
|
Strong
|
Frydrych et al.[53]
|
Western Australia
|
2005–2009
|
Retrospective observational study of medical records
|
M + F
|
Average age for M = 59 and for F = 60
|
OCs (lip, tongue, gum, mouth, palate) tonsil and oropharynx
|
Incident cases
|
127
|
Teaching hospital
|
Time (months) since the patient’s last dental visit and regularity of attending dental appointments
|
Moderate
|
Watson et al. [1]
|
Florida
|
NG
|
Cross-sectional
|
M + F
|
60 (13.2)
|
OCs (lip, oral cavity) or oropharynx
|
Incident cases
|
131
|
Two tertiary care centres
|
Within preceding 12 months, more than 12 months ago
|
Moderate
|
Lockhart et al. [38]
|
United States
|
NG
|
Screening
|
M + F
|
17–86
|
HNCs (not defined)
|
NG
|
131
|
HNC clinic
|
Emergency dental care, annually, regularly or twice yearly
|
Weak
|
Gellrich et al. [32]
|
Europe
|
NG
|
Retrospective observational study of medical records
|
M + F
|
Average age of M = 58.2, F = 62.6
|
OCs (floor of the mouth, tongue, gingiva, non-specified sites for oral cancer, excluding lip)
|
Incident cases
|
1543
|
Oral and maxillofacial surgery departments
|
Quarterly, annually, twice a year, every 2 years, less than every 2 years
|
Weak
|