Table 1.
Household Demographic and Property Characteristics, by Treatment Group
| Characteristics | Acaricide (n = 1362) |
Placebo (n = 1365) |
P Value |
|---|---|---|---|
| Residents, no. | |||
| Overall | 4704 | 4713 | NS |
| Mean | 3.45 | 3.45 | NS |
| Resident age, y, mean | 39.2 | 39.3 | NS |
| Children | 598 (44) | 597 (44) | NS |
| Pets | 778 (57) | 778 (57) | NS |
| White race, residents, no. (%) | 1268 (93) | 1266 (93) | NS |
| Income >$70 000 | 931 (68) | 893 (65) | NS |
| At least some college, residents, no. (%) | 1183 (87) | 1173 (86) | NS |
| Property size, acres | |||
| <1 | 525 (39) | 557 (41) | NS |
| 1–2 | 463 (34) | 433 (32) | |
| >2 | 369 (27) | 373 (27) | |
| Yard borders woodsa | 698 (87) | 706 (87) | NS |
| Woods on property | 1183 (87) | 1147 (84) | NS |
| Vegetable garden | 465 (34) | 450 (33) | NS |
| Flower garden | 932 (68) | 909 (67) | NS |
| Compost pile | 414 (30) | 368 (27) | NS |
| Log pile | 832 (61) | 823 (60) | NS |
| Bird feeder | 623 (46) | 603 (44) | NS |
| Fencing | 521 (38) | 491 (36) | NS |
| Stone walls | 658 (48) | 687 (50) | NS |
| Kids equipment | 497 (37) | 502 (37) | NS |
| Outside dining area | 224 (16) | 239 (18) | NS |
| Outside sitting area | 540 (40) | 533 (39) | NS |
| Lawn sport area | 400 (29) | 401(29) | NS |
Data are no. (%) of households, unless otherwise indicated.
Abbreviation: NS, not significant.
a
This question was only asked in 2011; the denominators are 799 for the acaricide group and 816 for the placebo group.