Understanding the spatial distribution of trichiasis and its association with trachomatous inflammation—follicular

Table 4 Comparison of variance explained by each mixed effects model

			Null model	TF only model	TF prevalence + risk factors model
Benin		Variance	2.25	1.3	1.09
	Proportional reduction	Null model		0.42	0.52
	Proportional reduction	TF only model			0.16
Cote d’Ivoire		Variance	13.75	10.28	2.92
	Proportional reduction	Null model			0.79
	Proportional reduction	TF only model
DRC		Variance	1.52	1.23	1.05
	Proportional reduction	Null model		0.19	0.31
	Proportional reduction	TF only model			0.15
Ethiopia		Variance	1.22	1.01	0.92
	Proportional reduction	Null model		0.17	0.25
	Proportional reduction	TF only model			0.09
Guinea		Variance	1.88	1.87*	1.37
	Proportional reduction	Null model			0.27
	Proportional reduction	TF only model
Malawi		Variance	2.17	1.96	1.59
	Proportional reduction	Null model		0.1	0.27
	Proportional reduction	TF only model			0.19
Mozambique		Variance	4.45	3.52	3.06
	Proportional reduction	Null model		0.21	0.31
	Proportional reduction	TF only model			0.13
Nigeria		Variance	1.93	1.82	0.99
	Proportional reduction	Null model		0.06	0.49
	Proportional reduction	TF only model			0.46
Sudan		Variance	1.98	1.85	1.15
	Proportional reduction	Null model		0.07	0.42
	Proportional reduction	TF only model			0.38

ISSN: 1471-2334