Table 8. p-values of t-tests and Cohen’s d between regions in water and sanitation scores.

Regional comparison	Water		Sanitation
	p-value	Cohen’s d	p-value	Cohen’s d
EAP versus ECA	0.002	0.22	0.003	0.23
EAP versus LAC	0.133	0.33	<0.001	0.94
EAP versus MENA	0.456	0.23	0.481	0.21
EAP versus SOA	0.831	0.06	0.255	0.30
EAP versus SSA	0.444	0.14	0.881	0.03
ECA versus LAC	<0.001	2.16	<0.001	2.59
ECA versus MENA	0.012	1.05	0.041	0.83
ECA versus SOA	0.002	1.21	0.003	1.17
ECA versus SSA	<0.001	1.11	0.001	1.03
LAC versus MENA	0.012	0.82	<0.001	1.28
LAC versus SOA	0.335	0.30	0.112	0.50
LAC versus SSA	0.359	0.12	<0.001	0.94
MENA versus SOA	0.368	0.31	0.174	0.46
MENA versus SSA	0.222	0.33	0.467	0.20
SOA versus SSA	0.709	0.09	0.217	0.36

Significant differences (p-values < 0.05) and large effect size (Cohen’s d values > 0.5) highlighted in bold.