Table 2. Pearson r correlation (above the diagonal) Spearman rho (below the diagonal) between all variables^*.

	Obesity %, Male	Obesity %, Female	Ibs	Calories	GDP	Urbanization
Obesity %, Male	1	0.903**	0.692**	0.716**	0.761**	0.580**
Obesity %, Female	0.845**	1	0.470**	0.493**	0.517**	0.399**
Ibs	0.667**	0.371**	1	0.639**	0.710**	0.513**
Calories	0.742**	0.451**	0.765**	1	0.759**	0.602**
GDP	0.758**	0.504**	0.866**	0.756**	1	0.672
Urbanization	0.583**	0.372**	0.666**	0.660**	0.736**	1

Pearson r and Spearman rho is reported. Number of countries included in the analysis ranges from 172 to 191.

*All correlations are significant at the 0.001 level (two-tailed).

Obesity % is percentage of defined population segment with a body mass index (BMI) of no less than 30 kg/m².

Data sources: Total calories data from the FAO’s FAOSTAT; BMI ≥30 data from the WHO Global Health Observatory; GDP data from the World Bank; Urbanization data from WHO. Biological State Index (I_bs) was self calculated with country specific fertility data published by the United Nations and the mortality data published by World Health Organization (WHO).