Table 1.
Baseline demographics of mobile phone–based physical activity education participants who completed the 12-month interview.
| Characteristics | Total (N=203) | Control (n=69) | Intervention (regular and plus groups; n=134) | P value | |
| Age (years), mean (SD) | 52.6 (11.0) | 52.0 (9.9) | 52.8 (11.5) | .66 | |
| Race and ethnicity, n (%) | .46 | ||||
|
|
African American | 16 (7.9) | 3 (4) | 8 (6.0) |
|
|
|
Hispanic or Latino | 11 (5.4) | 3 (4) | 8 (6.0) |
|
|
|
Asian | 41 (20.2) | 13 (18) | 28 (20.9) |
|
|
|
White (non-Hispanic) | 115 (56.7) | 36 (52) | 79 (59.0) |
|
| More than 1 race | 20 (9.9) | 9 (13) | 11 (8.2) |
|
|
| Education, n (%) | .14 | ||||
|
|
Completed high school or some college coursework | 51 (25.1) | 23 (33) | 28 (20.9) |
|
|
|
Completed college (4 years) | 83 (40.9) | 24 (34) | 59 (44.0) |
|
|
|
Completed graduate school | 69 (34.0) | 22 (31) | 47 (35.1) |
|
| Annual household income (US $; before tax), n (%) | .66 | ||||
|
|
<40,000 | 31 (15.3) | 13 (18) | 18 (13.4) |
|
|
|
40,001-75,000 | 49 (24.1) | 14 (20) | 35 (26.1) |
|
|
|
>75,000 | 107 (52.7) | 36 (52) | 71 (53.0) |
|
|
|
Decline to state or do not know | 16 (7.9) | 6 (8) | 10 (7.5) |
|
| Marital status, n (%) | .24 | ||||
|
|
Never married, divorced, or widowed | 97 (47.8) | 29 (42) | 68 (50.7) |
|
|
|
Currently married or cohabitating | 106 (52.2) | 40 (58) | 66 (49.3) |
|
| Employment, n (%) | .14 | ||||
|
|
Employed for pay (full or part time) | 151 (74.4) | 47 (68) | 104 (77.6) |
|
|
|
Retried or unemployed or homemaker | 52 (25.6) | 22 (31) | 30 (22.4) |
|
| Living with a child (children), n (%) | .17 | ||||
|
|
Yes | 50 (24.6) | 21 (30) | 29 (21.6) |
|
| Body mass index (kg/m2), mean (SD) | 29.9 (6.2) | 30.4 (5) | 29.6 (6.2) | .46 | |