Article Figures & Data
Figures
- Figure 1.
Flow diagram of study subjects.
- Figure 2.
Radon distribution in 351 homes.
Tables
- Table 1. Demographics and Home Characteristics of Subjects With a Valid Radon Result (n = 351) Compared With Those Did Not Return a Kit or Had an Invalid Result (n = 270)
Variable Valid Results (n = 351) Kit Not Returned or Result Invalid (n = 270) P Value Current radon concentration (pCi/L) Mean (SD) 10.0 (8.5) N/A Median 7.8 N/A Age (years), mean (SD) 55.2 (15.2) 48.4 (15.2) <.0001 Sex .5364 Female 206 (59.2%) 152 (56.7%) Male 142 (40.8%) 116 (43.3%) Household income .008 <$30,000 45 (14.0%) 46 (18.3%) $30,000 to <$40,000 45 (14.0%) 47 (18.7%) $40,000 to <$50,000 45 (14.0%) 49 (19.5%) ≥$50,000 187 (58.1%) 108 (43.0%) Other 1 (0.4%) Age of home (years) .0546 Mean (SD) 54.0 (36.3) 59.7 (34.5) Median 47 58 Years lived in the home .0004 Mean (SD) 18.1 (15.6) 13.8 (13.9) Median 13 9 Ever tested for radon <.0001 Yes 58 (16.5%) 12 (4.5%) No 293 (83.5%) 255 (95.5%) Had radon mitigation in the past .004 Yes 14 (4.4%) 1 (0.4%) No 306 (95.6%) 240 (99.6%) Heating system Gas 217 (61.8%) 161 (59.6%) .5787 Electric 87 (24.8%) 78 (28.9%) .2512 Geothermal 19 (5.4%) 10 (3.7%) .3169 Wood 13 (3.7%) 7 (2.6%) .4369 Other 49 (14.0%) 31 (11.5%) .3607 Home well insulated .0164 Yes 254 (72.4%) 173 (64.1%) No 82 (23.4%) 90 (33.3%) Don't know 15 (4.3%) 7 (2.6%) Lowest level of the home .0009 Basement 341 (97.4%) 246 (91.5%) Ground 9 (2.6%) 23 (8.6%) Family members sleep or spend extended time in the lowest level of the home .5303 Yes 129 (37.2%) 92 (34.7%) No 218 (62.8%) 173 (65.3%) Family members in the home Mean (SD) 3.4 (10.7) 3.1 (1.6) .5697 Median 2 3 Smokers in the home Mean (SD) 0.2 (0.5) 0.5 (0.8) <.0001 Median 0 0 N/A, not applicable; SD, standard deviation.
