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. 2012 Nov 19;7(11):e47533. doi: 10.1371/journal.pone.0047533

Table 3. Uncorrelated components derived from Principal Components Analysis (PCA).

Component number Component name Variables (and direction) included in component
1 Protein intake fish (eat often) meat (eat often) and eggs (eat often)
2 Educational achievement Education (more educated) literacy (more literate)
3 Tobacco use, alcohol use and male gender Alcohol (drinks more often) Smokes cigarettes (yes) smokes tobacco (yes) smokes other (yes) gender (male)
4 Rural setting & exposure to IAP setting (rural) exposure to indoor air pollution (yes) [someone in family has health insurance (more likely)] (−ve)
5 Fresh produce intake beans (eat often) green vegetable (eat often)
6 BMI, anemia, milk intake and DM BMI (underweight) [Diabetes (yes)] (−ve) [milk (eat often)]; (−ve) anemia (more likely)