Table 1.
Rates of ROP Across African Nations
| Study | Publish Year | Study Year | Inclusion Criteria | Prevalence | Treatable ROP | GA (weeks) | BW (grams) |
|---|---|---|---|---|---|---|---|
| Egypt | |||||||
| El-Mekaweyy35 | 2011 | No comment | <32 weeks and <1500g or requiring O2 incubator | 226/981 (23%) | No comment | <32 n=925 (94.3%) | <1500g n=424 (43.3%) |
| Abel-Hakeem11 | 2012 | January 2009-December352010 | <32 weeks or <1500g or if exposed to oxygen therapy >7 days | 33/172 (19.2%) | 6 Patients | 33.02 +/−1.72 | 1510 +/−245 |
| Hadi37 | 2013 | January 2010-January 2012 | <32 weeks and <1250g | 52/152 (34.4%) | 15 Patients | 31.02 +/− 2.13 | 1329 +/− 280 |
| Bedda14 | 2014 | June 2012-November 2013 | <33 weeks with <1500g | 73/223 (33.74%) | 26 Patients | 31.09 +/−1.76 | 1222.62 +/−236.66 |
| Nassar13 | 2016 | January 2010-March 2011 | <32 weeks and <1500g | 19/52 (36.5%) | 5 Patients | 31.3 +/−2.8 | 1234.6 +/−221.1 |
| Bassiouny36 | 2017 | March 2013-March 2015 | <37 weeks | 237/402 (59%) | 11 Patients | 31.5 +/− 2.3 | 1514 +/− 391 |
| Ali12 | 2017 | June 2014-May 2015 | <37 weeks or <2500g | 75/108 (69.4%) | 11 Patients | 32; 29 | 1460; 1200 |
| Kenya | |||||||
| Wanjala15 | 2015 | November 2003-April 2004 | <1750g and <35 weeks | 20/120 (16.7%) | 1 Patient | 30 | 1375 |
| Onyango44 | 2018 | January 2010-December 2015 | <32 weeks or <1500g | 43/103 (41.7%) | 9 Patients | 29.9 +/− 2.2 | 1280.1 +/− 333.0 |
| Nigeria | |||||||
| Baiyeroju-Agbeja17 | 1998 | January 1995-June 1995 | <1500g or <31 weeks | 1/18 (5.5%) | None | 26–31 | 870–1500 |
| Ademola-Popoola45 | 2013 | July 2007-October 2007 | <35 weeks and <1900g | 23/29 (79%) | No Comment | 30.97 +/− 2.32 | 1988 +/− 332 |
| Adio18 | 2014 | January 2012-October 2012 | <32 weeks and <1500g | 25/53 (47.2%) | 1 Patient | 28.98 +/− 1.38 | 1411 +/− 128g |
| Fajolu19 | 2015 | November 2011-May 2014 | <32 weeks and <1500g | 12/80 (15%) | 6 Patients | 28.9 +/− 1.7 | 1231 +/− 268 |
| Rwanda | |||||||
| Uwizhiwe20 | 2016 | September 2015-March 2016 | <2500g, <37 wekks | 22/148 (14.9%) | No comment | 32.6 | 1588 |
| South Africa | |||||||
| Straker23 | 1991 | March 1988-March 1989 | <34 weeks<1500g | 27/141 (19.2%) | No Comment | 26–34 | 1021 |
| Kirsten43 | 1995 | July 1986-August 1987 | <1500g and ventilated | 40/127 (31.5%) | No Comment | 29.9 +/−2.14 | 1184.8 +/− 176.7 |
| Delport31 | 2002 | February 1999-December 1999 | <1500g | 23/94 (24.5%) | 4 Patients | 34 | 1200 |
| Mayet46 | 2006 | July 2001-December 2003 | <32 weeks <1500g | 84/514 (16.3%) | 8 Patients | 35.1 +/− 3.7 | With ROP (1093.7 +/− 173.2) Without ROP (1215.6g +/− 174.6) |
| Van Der Merwe38 | 2013 | January 2009-December 2010 | <28 weeks or <1000g | 75/356 (21.8%) | CSROP 19; laser therapy 6 | 28.3 +/− 1.7 | 949.3 |
| Keraan39 | 2016 | November 2012-May 2013 | <31 weeks or <1251 | 40/135 (29.6%) | 8 Patients | 30.1 +/− 1.9 | 1056 +/− 172 |
| Visser40 | 2016 | March 2009-February 2014 | <32 weeks <1500g | 369/1104 (33.4%) | 27 patients | 28 weeks | 930g |
| Jacoby41 | 2016 | January 2009-December 2014 | <32 weeks <1500g | 2010–13.6%; 2011 25.8%; 2012–30.9%; 2013: 31.8%; 2014: 25.0% | 2010: 0%; 2011: 2.5%; 2012: 2.6%; 2013: 1.5%; 2014: 1.0% | No Comment | No Comment |
| Dadoo42 | 2016 | January 2013-December 2013 | <1500g | 38/147 (25.8%) | 4 Patients | 29 (+/−2.74) | |
| Du Bruyn24 | 2018 | January 2008-December 2015 | GA 32 weeks or BW <1500g | 2008: 4.65% 2011: 8.76 2015: 2.36% | Treatable ROP (28.5 weeks) Non-Treatable ROP (29.25weeks) | Treatable ROP (1081g) Nontreatable ROP (1195g) | |
| Sudan | |||||||
| Omer25 | 2014 | January 2012-January 2013 | <34 weeks | 34/93 (37%) | 12 Patients | 32–34 | <1500g (57.6%) |