Table 2. Comparison of the social network size after removing each known subpopulation out of the 0.5-2 range with the E/R ratio .

Estimation steps	Average social network size	E/R ratio				E-R correlation
		Omar	Matin	Intellectual disability	Thalassemia major	Total	Coefficient	p
With 16 known subgroups	355.24	6.18	1.58	0.91	1.84	1.60	0.85	<0.001
All the known populations, except for Omar	330.63	-	3.06	2.08	1.98	1.29	0.92	<0.001
All the known populations, except for Omar and Matin	319.52	-	-	2.16	2.04	1.25	0.92	<0.001
All the known populations, except for Omar, Matin, and intellectual disability	314.14	-	-	-	2.08	1.21	0.91	<0.001
All the known populations, except for Omar, Matin, intellectual disability, and thalassemia major	308.35	-	-	-	-	1.17	0.92	<0.001