Ref No | Year | Age of children | ECD (cells/mm2) | Range of ECD values (cells/mm2) |
Percentage six sided cells (“% hexagons”) |
Infants | |||||
14 | 1986 | 3–21 days | 6100 | ||
15 | 1987 | <12 months | 4425 | 3450–5600 | |
16 | 1988 | <12 months | 4252 | 3000–5700 | |
36 | 1989 | <12 months | 4291 | 3547–5305 | 82 (4.5) (X (SD)) |
19 | 1992 | >5 weeks | 5200 | 3800–5700 | |
Children | |||||
9 | 1976 | 6 years (case) | 3015 | ||
1 | 1976 | 6–11 years | 3150 | 2950–3250 | |
10 | 1978 | 3–11 years | 4300 | ||
11 | 1979 | 5–9 years | 2681 | 1640–3869 | |
30 | 1979 | 3–6 years | 3750 | 3000–4000 | |
35 | 1980 | 0–10 years | 4000 | ||
31 | 1981 | 11–16 years | 3080 | 2247–3769 | |
3 | 1982 | 0–9 years | 3470 | ||
25 | 1984 | 0– 10 years | no ECD | 73–75 | |
33 | 1985 | 2 years (mean) | 3100 | ||
34 | 1987 | 3 months–14 years | 3001 | 2300–3700 | |
15 | 1987 | 4–12 years | 3268 | 2658–3638 | |
26 | 1988 | 5–10 years | no ECD | 80–85 | |
36 | 1989 | 5–11 years | 3581 | 3067–4171 | 82 (5.5) (X (SD)) |
17 | 1990 | 5–14 years | 3160 | 2597–3981 | |
19 | 1992 | 0–5 years | 4800 | 3800–5800 | |
29 | 1992 | <10 years | 3491 | 88.4 (4.5) (X (SD)) | |
20 | 1997 | 6 months–10 years | 4600 | 3400–4750 | |
5 | 1999 | 6–10 years | 4126 | 3349–5316 | |
This study | 1999 | 5–11 years | 3987 | 2627–5316 | 66.6 (8.8) (X (SD)) |