Chart 1.

Description of components and scores used to create the PCI

PCI
Score	Conditions of household	Conditions of peridomicile area	Degree of shading in peridomicile area
3	Poorly maintained (Poor structure, peeling walls, broken or improvised items, little organization or cleanliness)	Poorly maintained (Disorganized, waste or scrap, unkempt grass, tires, bottles)	Plenty of shade (External area with over 50% of shade, large trees, a sunblind-like structure, and layers of shrubs with a greenhouse effect)
2	Reasonably well maintained (Poor or simple structure, but well organized and clean)	Reasonably well maintained (Moderately well-kept or poor structure, but well organized and clean)	Some shade (Degree of shade in external area ranging from 25 to 50%)
1	Well maintained (Structure in good condition, new paint, place is visibly clean and well maintained)	Well maintained (Organized, no apparent waste or scrap, grass is short, yard well maintained)	Little or no shade (External area with less than 25% of shade, no large trees or any other structure that works as a sunblind)

Adapted from Tun-lin and colleagues (11). PCI=Premise Condition Index.