Table 2.
Demographics of respondents compared to nonrespondents by disease
| Sex | Age | |||||
| Respondent | Nonrespondent | Respondent | Nonrespondent | |||
| Disease Community | Number Male of Total N (% Male) | Number Male of Total N (% Male) | χ2 (df) P | Mean Age (SD) | Mean Age (SD) |
t test, P (95% Confidence Interval [CI] of Age Difference) |
| MS | 65 of 347 (19%) | 312 of 1645 (19%) | 0.10(1) P = .92 | 46 (9) | 43 (11) | 3.24, P = .001 (0.8 - 3 yrs) |
| PD | 131 of 287 (46%) | 404 of 710 (57%) | 10.42(1) P = .001 | 60 (10) | 58 (11) | 2.21, P = .03 (0.3 - 3.2 yrs) |
| ALS | 145 of 218 (67%) | 445 of 770 (58%) | 5.37(1) P = .02 | 54 (11) | 53 (12) | 0.13, P = .9 (-1.6 to 1.8 yrs) |
| Fibromyalgia | 3 of 150 (2%) | 37 of 651 (6%) | 3.49(1) P = .06 | 45 (12) | 45 (12) | 0.64, P = .52 (-1.4 to 2.8 yrs) |
| HIV | 124 of 177 (70%) | 652 of 911 (72%) | 0.17(1) P = .68 | 42 (11) | 39 (11) | 3.28, P = .001 (1.2 - 4.8 yrs) |
| Mood disorders | 34 of 144 (24%) | 238 of 855 (28%) | 1.11(1) P = .29 | 39 (13) | 37 (14) | 1.9, P = .06 (-0.1 to 4.7 yrs) |