# | Study | Country | Age (m) | Sample Size†| Zinc Supplementation | Plasma Zinc (μg/dl) | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  |  | Zn | No Zn | Dose (mg) | Frequency/wk | Duration (wk) | Salt | Zn | No Zn |
1 | Bates et al 1993 | The Gambia | 7-28 | 55 | 54 | 70 | 2 | 60 | * | - | - |
2 | Ninh et al 1996 | Vietnam | 4-36 | 73 | 73 | 10 | 1 | 22 | Sulphate | - | - |
3 | Sazawal et al 1996 | India | 6-35 | 286 | 293 | 10 | 7 | 26 | Gluconate | 64.7 | 65.0 |
4 | Rosado et al 1997 | Mexico | 18-36 | 54 | 55 | 20 | 7 | 54 | Methionate | - | - |
5 | Ruel et al 1997 | Guatemala | 6-9 | 45 | 44 | 10 | 7 | 28 | Sulphate | 97.4 | 95.8 |
6 | Sazawal et al 1997 | India | 6-35 | 298 | 311 | 10 | 7 | 26 | Gluconate | - | - |
7 | Gardner et al 1998 | Jamaica | 6-24 | 31 | 30 | 5 | 7 | 12 | Sulphate | 64.6 | 65.0 |
8 | Lira et al 1998 | Brazil | 0-6 | 139 | 66 | 5 | 7 | 8 | Sulphate | - | - |
9 | Umeta et al 2000 | Ethiopia | 6-12 | 100 | 100 | 10 | 7 | 26 | Sulphate | 78.0 | 70.3 |
10 | Shankar et al 2000 | Papua New Guinea | 6-60 | 136 | 138 | 10 | 7 | 46 | Gluconate | 70.4 | 70.2 |
11 | Muller et al 2001 | Burkina Faso | 6-31 | 356 | 353 | 12.5 | 7 | 26 | Sulphate | - | - |
12 | Sazawal et al 2001 | India | 0 | 581 | 573 | 5 | 7 | 35 | Sulphate | - | - |
13 | Rahman et al 2001 | Bangladesh | 12-35 | 325 | 161 | 20 | 7 | 2 | - | - | - |
14 | Osendarp et al 2002 | Bangladesh | 1 | 152 | 149 | 5 | 7 | 24 | Acetate | 66.9 | 75.9 |
15 | Bhandari et al 2002 | India | 6-30 | 1241 | 1241 | 10 | 7 | 16 | Gluconate | - | - |
16 | Baqui et al 2002 | Bangladesh | 3-59 | 3974 | 4096 | 20 | 7 | 2 | Acetate | - | - |
17 | Baqui et al 2003 | Bangladesh | 6 | 323 | 157 | 20 | 1 | 26 | Acetate | - | - |
18 | Gupta et al 2003 | India | 6-41 | 186 | 94 | 10 | 7 | 16 | Sulphate | - | - |
19 | Sur et al 2003 | India | 0-12 | 50 | 50 | 5 | 7 | 52 | Sulphate | - | - |
20 | Lind et al 2004 | Indonesia | 6-12 | 340 | 170 | 10 | 7 | 26 | Sulphate | - | - |
21 | Penny et al 2004 | Peru | 6-36 | 276 | 136 | 20 | 7 | 26 | Gluconate | - | - |
22 | Alarcon et al 2004 | Peru | 6-35 | 111 | 224 | 0.7 | 6 | 18 | Sulphate | - | - |
23 | Brooks et al 2005 | Bangladesh | 2-12 | 809 | 812 | 35 | 7 | 52 | Acetate | - | - |
24 | Heinig et al 2006 | USA | 4-10 | 41 | 44 | 5 | 7 | 28 | Sulphate | - | - |
25 | Sazawal et al 2006 | Tanzania | 1-35 | 8120 | 8006 | 10 | 7 | 56 | - | - | - |
26 | Long et al 2006 | Mexico | 6-15 | 389 | 198 | 20 | 7 | Â | Methionate | 71.0 | 76.0 |
27 | Richard et al 2006 | Peru | 0.5-15 | 428 | 215 | 20 | 7 | 28 | Sulphate | - | - |
28 | Tielsch et al 2006 | Nepal | 1-36 | 7297 | 14241 | 10 | 7 | 68 | Sulphate | - | - |
29 | Tielsch et al 2007 | Nepal | 1-35 | 20968 | 20308 | 10 | 7 | Â | Sulphate | - | - |
30 | Gupta et al 2007 | India | 6-48 | 854 | 858 | 25 | 2 | 26 | - | - | - |
31 | Sazawal et al 2007 | Tanzania | 1-36 | 21274 | 21272 | 10 | 7 | 68 | - | 78.0 | 79.0 |
32 | Bhandari et al 2007 | India | 1-23 | 47110 | 47249 | 10 | 7 | 52 | Sulphate | 64.0 | 64.2 |
33 | Luabeya et al 2007 | South Africa | 4-6 | 202 | 105 | 10 | 7 | 72 | Gluconate | 77.2 | 78.6 |
34 | Brown et al 2007 | Peru | 6-8 | 203 | 99 | 3 | 7 | 26 | Sulphate | 77.1 | 78.6 |
35 | Fischer Walker et al 2007 | India, Pakistan, Ethiopia | 1-5 | 554 | 556 | 10 | 7 | 2 | Sulphate | - | - |
36 | Chhagan et al 2009 | South Africa | 6-24 | 202 | 104 | 10 | 7 | 72 | Sulphate | - | - |
37 | Taneja et al 2009 | India | 0 | 1026 | 1026 | 5 | 7 | 52 | Sulphate | 63.4 | 64.7 |