Table 1.
Demographic Characteristics of ALS study subjects
| Characteristic | Men (n=158) n (%) | Women (n=93) n (%) | Total (n=251) n (%) |
|---|---|---|---|
|
| |||
| Age, mean ± SD (years)* | 57.7 ± 9.3 | 61.5 ± 8.9 † | 58.9 ± 10.0 |
|
| |||
| Race/Ethnicity | |||
| Caucasian | 144 (91) | 88 (95) | 232 (92) |
| African-American | 3 (2) | 2 (2) | 5 (2) |
| Latin/Latino/Hispanic | 5 (3) | 2 (2) | 7 (3) |
| Asian/Pacific Islander | 3 (2) | 1 (1) | 4 (2) |
| Unknown/missing | 3 (2) | - | 3 (1) |
|
| |||
| US region ‡, § | |||
| Northeast | 19 (12) | 13 (14) | 32 (13) |
| South | 54 (34) | 41 (44) | 95 (38) |
| Midwest | 28 (18) | 16 (17) | 44 (18) |
| West | 56 (35) | 23 (25) | 79 (32) |
Abbreviations: sd, standard deviation; US, United States.
*
Age was missing for 2 men and 2 women.
†
Age was significantly different when compared by gender (P=0.002).
‡
Northeast includes: CT, MA, ME, NH, NJ, NY, PA, RI, and VT. South includes: AL, AR, DE, FL, GA, KY, LA, MD, MS, NC, OK, SC, TN, TX, VA, WV, and D.C. Midwest includes: ND, NE, KS, IA, IL, IN, MI, MN, MO, OH, SD, and WI. West includes: AK, AZ, CA, CO, ID, HI, MT, NM, NV, OR, UT, WA, and WY.
§
One man was a US citizen living abroad.