Individual Subject Meta-Analysis of Parameters for Giardia duodenalis Shedding in Animal Experimental Models

Table 3

Classification of categorical variables for both Giardia duodenalis cyst shedding and diarrhoea outcomes.

Variable	Shedding outcome			Diarrhoea outcome
	Classification of variables^1	Number of studies	Number of individuals	Classification of variables^1	Number of Studies	Number of individuals
Assemblage	A	3	148	A and E	1	14
	B	1	49
	E	1	6
	A and E	1	14
Isolate Source	Humans; Other Than Humans	19; 4	1128; 86	Humans; Other Than Humans	1; 3	28; 54
Passage	No; Yes	17; 16	755; 667	No; Yes	2; 2	24; 58
Storage Time	<1 week; ≥1 week	10; 3	420; 183	<1 week	1	8
Experimental Species	Mice; Other Animals; Other Rodents; Gerbils	7; 8; 4; 15	180; 87; 202; 963	Other Animals; Gerbils	2; 2	24; 58
Age	Adult; Young	12; 18	458; 828	Newborn; Weanling	2; 2	24; 58
Infective Stage	Cysts; Trophozoites	20; 18	1021; 411	Cysts; Trophozoites	3; 2	64; 18
Administration Route	Gastric Intubation; Other Than Gastric Intubation	6; 23	233; 1153	Gastric Intubation; Other Than Gastric Intubation	2; 2	50; 24
Detection Method	Hemocytometer; Microscopy; Flotation Technique	15; 3; 9	749; 53; 523	Not analyzed

1Categories not listed indicate that there were no animals from those categories in the studies.