Table 1. Relationship between Ca, Zn and energy supply, phytate:Zn molar ratio, and GNI-PPP.
| Ca supply | Zn supply | Phytate: Zn | GNI-PPP | |
|---|---|---|---|---|
| Zn supply | 0.817** | |||
| Phytate:Zn | −0.775** | −0.714** | ||
| GNI-PPP | 0.755** | 0.604** | −0.682** | |
| Energy supply | 0.832** | 0.770** | −0.641** | 0.825** |
Based on 2655 data points from 1992-2011 (see Supplementary Table S10 online).
**Spearman’s Rank Correlation is significant at P ≤ 0.01. GNI-PPP is gross national income converted to international dollars using purchasing power parity rates. An international dollar has the same purchasing power as a US Dollar in the US.