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. Author manuscript; available in PMC: 2019 Feb 28.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2018 Aug 30;29(2):227–237. doi: 10.1038/s41370-018-0053-x

Table 3.

Participant characteristics and number of measurements among participants with a complete set of valid metrics for at least one round of air monitoring.

W-S NY Baltimore St. Paul Chicago LA Total
N 10 8 13 12 7 10 60
Age (years)a 64
[58-74]
72
[63-86]
67
[54-81]
62
[54-75]
68
[56-76]
65
[54-77]
66
[54-86]
Femalea 9 (90%) 3 (40%) 5 (40%) 7 (60%) 1 (14%) 6 (60%) 31 (52%)
Whitea 7 (70%) 5 (63%) 10 (77%) 10 (83%) 5 (71%) 4 (40%) 41 (68%)
Chinesea 0 0 0 0 0 1 (10%) 1 (2%)
Blacka 3 (30%) 2 (25%) 3 (23%) 0 2 (29%) 1 (10%) 11 (18%)
Hispanica 0 1 (13%) 0 2 (17%) 0 4 (40%) 7 (12%)
Year Home 1964 1948 1964 1964 1960 1964 1956
Builtb [1937-1998] [1925-1970] [1938-1994] [1887-1985] [1915-1965] [1945-2004] [1887-2004]
Percent of Time in Microenvironments
Home Indoor 72%
[50-97]
79%
[70-89]
73%
[54-94]
74%
[54-90]
74%
[49-95]
81%
[63-92]
75%
[49-97]
Home Total
(In and Out)
75%
[51-98]
86%
[71-100]
74%
[58-95]
77%
[59-91]
75%
[51-95]
86%
[63-99]
79%
[51-100]
Indoor Total
(Home and Other)
90%
[84-97]
85%
[72-92]
89%
[78-96]
88%
[66-96]
89%
[69-99]
89%
[81-95]
88%
[66-99]
In Vehicle 5%
[1-9]
5%
[0-18]
6%
[2-17]
6%
[1-27]
4%
[1-14]
3%
[0-8]
5%
[0-27]
Home Type
Single Family 10 (100%) 5 (63%) 11 (85%) 8 (67%) 4 (57%) 8 (80%) 45 (75%)
Apartment or
Condo
0 2 (25%) 1 (8%) 0 2 (29%) 2 (20%) 7 (12%)
Rowhouse,
Du-/Triplex
0 1 (13%) 1 (8%) 4 (33%) 1 (14%) 0 8 (13%)
Sampling Month (n = 91)
December-
February
3 (3%) 1 (1%) 4 (4%) 4 (4%) 1 (1%) 4 (4%) 17 (19%)
March – May 4 (4%) 2 (2%) 9 (10%) 8 (9%) 3 (3%) 2 (2%) 28 (31%)
June – August 6 (7%) 6 (7%) 6 (7%) 5 (5%) 5 (5%) 1 (1%) 29 (32%)
September –
November
2 (2%) 2 (2%) 4 (4%) 2 (2%) 2 (2%) 5 (5%) 17 (19%)
a.

Mean and range are provided for age and percent of time spent in microenvironments. Median and range are provided for year home built; all other statistics are provided as count (%).

b.

Approximately 50% of participants did not provide information on the age of the building.