Table 1.

Cut-offs for intensity of infection and thresholds used to define anaemia

Infections	Light	Moderate	Heavy
Schistosoma haematobium (no. of eggs/10 ml of urine)	1–49		≥50
A. lumbricoides (no. of eggs/gram of faeces)	1–4999	5000–49 999	≥50 000
T. trichiura (no. of eggs/gram of faeces)	1–999	1000–9999	≥10 000
Hookworms (no. of eggs/gram of faeces)	1–1999	2000–3999	≥4000
H. nana (no. of eggs/gram of faeces)	1–1999	2000–9999	≥10 000
Anaemia in children (g/dl)	Mild	Moderate	Severe
<5 y	9.0–11.0	7.0–8.9	<7
5–11 y	11.0–11.4	8.0–10.9	<8
12–14 y	11.0–11.4	8.0–10.9	<8