Table 1.
Demographic characteristics of mobile phone users in the United States by chronic condition (N=1604).
| Variable | No condition (n=807) | Hypertension (n=364) | Obesity (n=198) | Diabetes (n=163) | Depression (n=267) | High cholesterol (n=319) | P value | |
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |||
| Agea | 33.8 (12.8) | 40.1 (15.8) | 33.8 (16.5) | 41.4 (16.5) | 50.6 (16.1) | 38.6 (15.9) | <.001 | |
| Sex | <.001 | |||||||
| Male | 399 (49.4) | 193 (53.0) | 71 (35.8) | 84 (51.5) | 91 (34.1) | 203 (63.6) | ||
| Female | 408 (50.6) | 170 (46.7) | 125 (63.1) | 79 (48.5) | 176 (65.9) | 116 (36.4) | ||
| Education | <.001 | |||||||
| Less than 12th grade | 43 (5.3) | 17 (4.7) | 9 (4.5) | 7 (4.3) | 20 (7.5) | 12 (3.8) | ||
| High school or General Equivalency Degree | 388 (48.1) | 142 (39.0) | 73 (36.8) | 61 (37.4) | 120 (44.9) | 115 (36.1) | ||
| Some college | 176 (21.8) | 110 (30.2) | 66 (33.3) | 41 (25.2) | 75 (28.1) | 91 (28.5) | ||
| Bachelor’s degree | 148 (18.3) | 61 (16.7) | 35 (17.6) | 40 (24.5) | 38 (14.2) | 66 (20.7) | ||
| Graduate degree | 52 (6.4) | 34 (9.3) | 15 (7.6) | 14 (8.6) | 14 (5.2) | 35 (11.0) | ||
| Race or ethnicity | <.001 | |||||||
| African American/black | 219 (27.1) | 111 (30.5) | 58 (29.3) | 43 (26.4) | 61 (22.8) | 54 (16.9) | ||
| Asian | 70 (8.7) | 15 (4.12) | 10 (5.1) | 10 (6.1) | 9 (3.3) | 15 (4.7) | ||
| White | 199 (24.6) | 175 (48.1) | 77 (38.9) | 65 (39.8) | 125 (46.8) | 173 (54.2) | ||
| Native American | 6 (0.7) | 2 (0.5) | 2 (1.0) | 1 (0.6) | 4 (1.5) | 3 (0.94) | ||
| Latino/Hispanic | 279 (34.6) | 56 (15.4) | 48 (24.2) | 44 (26.9) | 62 (23.2) | 65 (20.4) | ||
| Other | 34 (4.2) | 5 (1.4) | 3 (1.5) | 0 (0.0) | 6 (2.3) | 9 (2.8) | ||
| Self-reported health | <.001 | |||||||
| Poor | 9 (1.1) | 5 (1.4) | 1 (0.5) | 7 (4.3) | 21 (7.8) | 5 (1.6) | ||
| Fair | 44 (5.5) | 17 (4.7) | 7 (3.5) | 46 (28.2) | 79 (29.6) | 17 (5.3) | ||
| Average | 254 (31.5) | 26 (7.1) | 20 (10.1) | 80 (49.1) | 118 (44.2) | 26 (8.2) | ||
| Very good | 417 (51.7) | 24 (6.6) | 23 (11.6) | 33 (20.3) | 73 (27.3) | 24 (7.5) | ||
| Excellent | 155 (19.2) | 7 (1.9) | 6 (3.0) | 17 (10.4) | 28 (10.5) | 7 (2.19) | ||
| Physical activity | <.001 | |||||||
| Never | 115 (14.3) | 21 (5.8) | 14 (7.1) | 5 (3.1) | 38 (14.2) | 70 (21.9) | ||
| 1 day | 86 (10.6) | 7 (1.9) | 10 (5.1) | 1 (0.) | 26 (9.74) | 38 (11.9) | ||
| 2 days | 198 (24.5) | 17 (4.7) | 22 (11. 1) | 13 (7.9) | 40 (15.0) | 58 (18.1) | ||
| 3-4 days | 340 (42.1) | 28 (7.7) | 25 (12.6) | 24 (14.7) | 48 (18.0) | 98 (30.7) | ||
| 5-7 days | 140 (17.3) | 14 (3.8) | 8 (4.0) | 14 (8.6) | 31 (11.6) | 55 (17.2) | ||
aRepresents mean and standard deviation.