Table 1.
Included studies of head and neck squamous cell carcinoma of the oral cavity and oropharynx in sub-Saharan Africa since 1990
| LOCATION | YEAR | AUTHOR | N | SITES | |||||||
| Lip | Oral mucosa |
Alveolar ridge |
Floor of mouth |
Palate | Tongue | OP | Not specified |
||||
| Central | |||||||||||
| DRC | 1999 | Kayembe32 | 83 | 14(17%) | 11 (13%) | 7 (8%) | 6 (7%) | 17 (20%) | 20 (24%) | - | 8 (10%) |
| Sudan | 2010 | Ibrahim33 | 192 | - | - | - | - | - | - | - | 192 (100%) |
| Sudan | 1995 | Idris34 | 650 | - | - | - | - | - | - | - | 650 (100%) |
| Sudan | 2010 | Jalouli35 | 217 | 10 (5%) | 73 (34%) | 50 (23%) | 31 (14%) | 6 (3%) | 47 (22%) | - | - |
| Sudan | 2012 | Jalouli36 | 20 | - | - | - | - | - | 7 (35%) | - | 13 (65%) |
| Eastern | |||||||||||
| Ethiopia | 1994 | Neway37 | 16 | - | - | - | - | - | - | - | 16(100%) |
| Kenya | 2008 | Butt38 | 9 | - | - | 7 (78%) | - | 2 (22%) | - | - | - |
| Kenya | 2012 | Butt39 | 16 | 2 (13%) | 2 (13%) | 2 (13%) | 3 (19%) | - | 5 (31%) | 2 (13%) | - |
| Kenya | 2007 | Dimba40 | 187 | 10 (5%) | 32 (17%) | 31 (17%) | 32 (17%) | 25 (13%) | 35 (19%) | 1 (1%) | 21 (11%) |
| Kenya | 1992 | Maroo41 | 17 | - | 7 (41%) | 3 (18%) | 4 (24%) | 2 (12%) | 1 (6%) | - | - |
| Kenya | 1995 | Onyango42 | 580 | 53 (9%) | 23 (4%) | 107 (18%) | 31 (5%) | 93 (16%) | 149(26%) | - | 124(21%) |
| Kenya | 2004 | Onyango43 | 821 | 86(10%) | 86(10%) | 242 (29%) | 63 (8%) | - | 220 (27%) | 124 (15%) | - |
| Southern | |||||||||||
| RSA | 1996 | Hille44 | 3070 | - | - | - | - | - | - | - | 3070 (100%) |
| RSA | 2002 | Pacella-Norman45 | 124 | - | - | - | - | - | - | - | 124 (100%) |
| Zimbabwe | 2006 | Chidzonga46 | 313 | 14 (4%) | 33 (11%) | 99 (32%) | 58(19%) | 28 (9%) | 64 (20%) | 17 (5%) | - |
| Western | |||||||||||
| Ghana | 2009 | Parkins47 | 69 | 5 (7%) | 5 (7%) | 37 (54%) | 4 (6%) | - | 12 (17%) | 2 (3%) | 4 (6%) |
| Nigeria | 1991 | Abiose48 | 75 | 10(13%) | 3 (4%) | 20 (27%) | 4 (5%) | 25 (33%) | 11 (15%) | - | 2 (3%) |
| Nigeria | 2002 | Adewole49 | 58 | 4 (7%) | 10(17%) | 11 (19%) | 10(17%) | - | 10(17%) | - | 13 (22%) |
| Nigeria | 2011 | Adeyemi50 | 181 | 9 (5%) | 16 (9%) | 84 (46%) | 8 (4%) | 36 (20%) | 28(15%) | - | - |
| Nigeria | 2007 | Ajayi51 | 112 | 2 (2%) | 5 (4%) | 63 (56%) | 8 (7%) | 13 (12%) | - | 10 (9%) | 11 (10%) |
| Nigeria | 2004 | Amusa52 | 24 | 1 (4%) | - | 10 (42%) | - | 4 (17%) | 3 (13%) | 6 (25%) | - |
| Nigeria | 1999 | Arotiba53 | 246 | 16 (7%) | 13 (5%) | 82 (33%) | 16 (7%) | 57 (23%) | 48 (20%) | - | 14 (6%) |
| Nigeria | 2006 | Arotiba54 | 91 | 4 (4%) | 10(11%) | 14(15%) | 9 (10%) | 23 (25%) | 23 (25%) | 7 (8%) | 1 (1%) |
| Nigeria | 2008 | Effiom55 | 233 | 18 (8%) | 31 (13%) | 128 (55%) | 15 (6%) | - | 41 (18%) | - | - |
| Nigeria | 2011 | Lawal56 | 32 | - | - | - | - | - | - | - | 32 (100%) |
| Nigeria | 1997 | Lawoyin57 | 90 | 15 (17%) | 6 (7%) | 7 (8%) | 2 (2%) | 36 (40%) | 22 (24%) | 2 (2%) | - |
| Nigeria | 2007 | Oji58 | 81 | 12 (15%) | - | - | 17 (21%) | - | 24 (30%) | - | 28 (35%) |
| Nigeria | 2005 | Otoh59 | 28 | 5 (18%) | 2 (7%) | 3 (11%) | 4 (14%) | 8 (29%) | 3 (11%) | - | 3 (11%) |
| Nigeria | 2000 | Rafindadi60 | 115 | - | - | - | - | - | - | - | 115 (100%) |
| Total | 7750 | 290 (4%) | 368 (5%) | 1007 (13%) | 325 (4%) | 375 (5%) | 773 (10%) | 171(2%) | 4441 (57%) | ||
DRC = Democratic Republic of Congo
RSA = Republic of South Africa
OP = Oropharynx