Table 2.
Characteristics of study participants (N = 415): overall and by adherence status.
| Variables | Overall | Adherence | ||
|---|---|---|---|---|
|
| ||||
| Low (<35%) 106 (25.5) | Moderate (35–85%) 98 (23.6) | High (>85%) 211 (50.8) | ||
| INDIVIDUAL | ||||
| Age, years (range 41–87) | 66.1 (9.3) | 66.3 (9.6) | 64.6 (9.4) | 66.7 (9.0) |
| Sex | ||||
| Male | 233 (56.1) | 63 (59.4) | 46 (46.9) | 124 (58.8) |
| Female | 182 (43.9) | 43 (40.6) | 52 (53.1) | 87(412) |
| Race | ||||
| White | 290 (69.9) | 79 (74.5) | 62 (63.3) | 149 (70.6) |
| Non-White | 125 (30.1) | 27 (25.5) | 36 (36.7) | 62 (29.4) |
| Lives alone | 53 (12.8) | 12 (11.3) | 13 (13.3) | 28 (13.3) |
| BMI, kg/m2 (range 14.2–80.7) | 28.6 (8.5) | 28.4 (82) | 29.5 (9.4) | 28.2 (82) |
| Co-morbidities (range 0–9)a * | 2.7 (1.9) | 3.0 (1.9) | 2.7 (2.0) | 2.5 (1.8) |
| 6MWD, ma*** | 267.4 (117.0) | 227.0 (121.8) | 270.8 (123.4) | 286.1 (106.5) |
| <150 | 69 (16.6) | 32 (30.2) | 17 (17.4) | 20 (9.5) |
| 150–249 | 110 (265) | 29 (27.4) | 24 (24.5) | 57 (27.0) |
| ≥250 | 236 (56.9) | 45 (19.1) | 57 (68.2) | 134 (635) |
| Current smokinga** | ||||
| Yes | 46(11.1) | 19 (17.9) | 13 (13.3) | 14 (6.6) |
| No | 369 (88.9) | 87 (82.1) | 85 (86.7) | 197 (93.4) |
| Smoking pack-years | 46.8 (42.5) | 51.3(49.0) | 48.8 (54.0) | 43.5 (31.5) |
| Depression | 89 (21.5) | 28 (26.4) | 24 (24.5) | 37 (17.5) |
| Prescribed sessionsa,b* | ||||
| ≤20 | 107 (25.8) | 23 (21.7) | 20 (20.4) | 64 (30.3) |
| 21–30 | 230 (55.4) | 57 (53.8) | 57 (582) | 116 (55.0) |
| >30 | 78 (18.8) | 26 (24.5) | 21(21.4) | 31 (14.7) |
| Distance from home, miles (range 0.7–183) | 18.2 (21.1) | 18.9 (16.1) | 17.5 (26.3) | 18.2 (20.7) |
| NEIGHBORHOOD | ||||
| % College degree | 27.2 (20.7) | 25.8 (19.6) | 30.5 (22.7) | 26.3 (202) |
| % No high school diploma | 16.3 (10.5) | 16.7 (10.2) | 15.0 (10.8) | 16.7 (10.4) |
| Median household income, $ | 46,748.1 (22,261.7) | 46,9615 (22,239.8) | 46,824.7 (24,825.6) | 46,605.3 (21,094.6) |
| % Households with interest, dividend, or rental income | 25.5 (16.5) | 23.3 (14.4) | 24.4 (17.8) | 27.1 (16.8) |
| Civilian unemployment rate, % | 45 (3.5) | 4.8 (3.5) | 4.7 (3.3) | 4.2 (3.6) |
| % Households without vehicle | 8.1 (9.4) | 8.5 (10.8) | 9.4 (9.8) | 7.4 (8.2) |
| Mean number of household vehicles | 1.8 (0.4) | 1.8 (0.4) | 1.8 (0.4) | 1.8 (0.4) |
| Median value of owner-occupied housing, $ | 138,194.0 (88,611.9) | 138,7415 (79,17359) | 148,136.7 (104,997.9) | 133,300.9 (84,752.2) |
| % Seniors living alone | 9.9 (45) | 9.9 (4.3) | 10.1 (5.3) | 9.7 (4.3) |
| % Single parents with children | 19.0 (12.5) | 18.1 (14.6) | 19.2 (132) | 19.4(11.1) |
| % Households with public assistance or food stamps b* | 10.1 (9.6) | 10.6 (9.4) | 11.7(11.0) | 9.2 (8.9) |
| % Households in poverty b* | 14.2 (11.8) | 14.5 (11.9) | 16.4 (12.3) | 13.0(11.3) |
| % Cost-burdened households b* | 18.1 (12.0) | 18.1 (14.9) | 20.2 (10.5) | 17.2 (10.9) |
| % Minority population b** | 375 (33.4) | 35.0 (31.2) | 45.7 (36.2) | 35.1 (32.7) |
| % Disabled populationa,b ** | 8.4 (8.2) | 10.0 (8.4) | 9.5 (8.3) | 7.1 (8.0) |
| SDI, deciles b** | 45 (2.9) | 4.5 (2.8) | 5.2 (3.0) | 4.2 (2.9) |
Notes: Values are mean (SD) for continuous variables, N (%) for categorical variables.
a
Low vs high adherence.
b
Moderate vs high adherence.
Boldface indicates statistical significance of the difference between adherence categories
*
p < 0.05,
**
p < 0.01,
***
p < 0.001, two-tailed tests).
BMI, body mass index; 6MWD, 6-minute walking distance; SDI, socioeconomic disadvantage index.