Table 1 Overall characteristics of the included studies.
First author | Year | Study design | Nation/region | Age at diagnosis | Study period (Time span: years) | Sample size | NOS | |
|---|---|---|---|---|---|---|---|---|
Population-based epidemiology studies (prevalence of congenital cataract available) | ||||||||
1 | Stewart-Brown, S. L.29 | 1988 | National prospective birth cohort | UK | 10 y | 1970–1980 (10) | 12,853 | 6 |
2 | Bermejo, E.11 | 1998 | National prospective birth cohort | Spain | 0–3 d | 1980–1995 (15) | 1,124,654 | 5 |
3 | SanGiovanni, J. P.4 | 2002 | National prospective birth cohort | USA | 0–7 y | 1959–1965 (6) | 53,639 | 6 |
4 | Haargaard, B.30 | 2004 | National prospective birth cohort | Denmark | 0–18 y | 1980–2000 (20) | 2,616,439 | 5 |
5 | Rahi, J. S.6 | 2001 | National surveillance | UK | 0–15 y | 1981–1996 (15) | 734,000 | 5 |
6 | Wirth, M. G.19 | 2002 | National retrospective case review | Australia | NA | 1977–2002 (25) | 1,870,000 | 5 |
7 | Hu, D. N.31 | 1987 | National screening | China | NA | 1980–1987 (7) | 207,319 | 5 |
8 | Stayte, M.32 | 1993 | Regional prospective cohort | UK | 0–5 y | 1984–1989 (5) | 6,687 | 5 |
9 | Stoll, C.12 | 1997 | Regional prospective cohort | France | At birth | 1979–1994 (15) | 212,479 | 4 |
10 | Abrahamsson, M.16 | 1999 | Regional surveillance | Western Sweden | NA | 1980–1999 (19) | 377,334 | 5 |
11 | Bhatti, T. R.15 | 2003 | Regional surveillance | Atlanta, USA | 0–1 y | 1968–1998 (30) | 982,128 | 5 |
12 | Nie, W. Y.33 | 2008 | Regional screening | China | 2–7 d | NA | 15,398 | 3 |
13 | Chen, Z.34 | 2014 | Regional screening | Zhengzhou, China | 3–6 y | 2012–2013 (1) | 9,246 | 6 |
14 | Yang, L.35 | 2014 | Regional screening | Hebei, China | 6–14 y | 2011–2012 (1) | 6,299 | 5 |
15 | Pi, L. H.2 | 2012 | Regional cross-sectional field survey | Chongqing China | 6–15 y | 2006–2007 (1) | 3,079 | 5 |
16 | Holmes, J. M.10 | 2003 | Regional retrospective case review | Upper mid-west USA | 0–1 y | 1978–1997 (19) | 33,021 | 5 |
17 | Halilbasic, M.36 | 2014 | Regional retrospective case review | Tuzla Canton, Bosnia, Herzegovina | 0–14 y | 2003–2010 (17) | 38,133 | 5 |
Hospital-based epidemiological studies | ||||||||
18 | Lawan, A.37 | 2008 | Hospital-based cross-sectional study | Nigeria | 0–10 y | 2001–2005 (4) | 4,163 | 3 |
19 | Lin, H.13 | 2014 | Hospital-based cross-sectional study | Guangzhou, China | 0–18 y | 2005–201 0(5) | 136,154 | 5 |
Congenital/pediatric cataract-based case reviews | ||||||||
20 | Jain, I. S.1 | 1983 | Congenital cataract case review | North India | NA | NA | 76 | 2 |
21 | Eckstern, M.38 | 1996 | Congenital cataract case review | South India | 0–15 y | 1993–1994 (2) | 514 | 4 |
22 | Rahi, J. S.18 | 2000 | Congenital cataract case review | UK | 0–15 y | 1995–1996 (1) | 243 | 4 |
23 | Haargaard, B.20 | 2004 | Congenital cataract case review | Denmark | 0–17 y | 1977–2001 (24) | 1,027 | 4 |
24 | Johar, S. R.14 | 2004 | Congenital cataract case review | West India | 10 d-15 y | 2001–2002 (1) | 172 | 4 |
25 | Perucho-Martinez, S.21 | 2007 | Pediatric cataract case review | Spain | 0–2 y | 1986–2004 (18) | 79 | 4 |
26 | Lim, Z.22 | 2010 | Pediatric cataract case review | California, USA | NA | 1992–2002 (10) | 778 | 4 |
27 | You, C.23 | 2011 | Pediatric cataract case review | Shandong, China | 3 m-12 y | 1995–2006 (11) | 196 | 4 |
