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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2016 Sep 7;27(5):451–457. doi: 10.1038/jes.2016.52

Table 1.

Selected Characteristics of Schools/Classrooms

SCHOOLS CLASSROOMS
Characteristic No. (%) Characteristic No. (%)
Year Built Flooring
    1900-1949 15 (50)     Carpet 3 (2)
    1950-1969 12 (40)     Linoleum/Tile 93 (68)
Gas Cooking 1 (3)     Rugs 109 (80)
Furnace age Classroom Level
    ≤ 10 years 13 (43)     Basement 3(2)
    >10 years 9 (30)     1st floor 3 (2)
Service/12 month 27 (90)     2nd floor 59 (43)
    ≥ 3rd floor 71 (52)
Windows open 127 (96)
Faces drop-off 40 (31)