Table 1.
Baseline Sociodemographic Characteristics of Selected Study Group and Subjects Excluded From Study
| |
|
Total (n =1002) |
Study Group (n =671) |
Excluded Subjects (n = 331) |
|
|---|---|---|---|---|---|
| n (%) | |||||
| Age | 1002 | ||||
| 65-74 | (39) | 268 (40) | 120 (36) | ||
| 74-84 | (31) | 208 (31) | 103 (31) | ||
| 85+ | (30) | 195 (29) | 108 (33) | ||
| Ethnicity | 1002 | ||||
| White | (71) | 484 (72) | 229 (69) | ||
| Black | (28) | 184 (27) | 100 (30) | ||
| Others | (0.5) | 3 (0.5) | 2 (0.6) | ||
| Married | 1002 | (21) | 142 (21) | 69 (21) | |
| Education > High School | 1002 | (18) | 142 (21) | 38 (11) | |
| Chronic Diseases ≥2 | 1002 | (60) | 366 (55) | 233 (70)* | |
| Mobility Difficulty | 1000 | (77) | 477 (71) | 291 (88)* | |
| Physical Activity | 938 | ||||
| Low | (91) | 605 (92) | 248 (88)* | ||
| Middle | (8) | 44 (7) | 32 (11) | ||
| High | (1) | 8 (0.01) | 1 (0.004) | ||
| ADL† | 1002 | ||||
| No difficulty | (35) | 290 (43) | 60 (18)* | ||
| A little/some difficulty | (33) | 248 (37) | 87 (26) | ||
| A lot of difficulty | (32) | 132 (20) | 184 (56) | ||
| Behavioural Factors | n | m (SD) | ||
|---|---|---|---|---|
| Body Mass Index | 1002 | 28.3 (6.5) | 28.3 (6.4) | 28.4 (6.8) |
| Systolic Blood Pressure, mmHg | 1002 | 141.0 (23.5) | 140.8 (22.8) | 141.5 (24.7) |
| Summary Performance Score | 980 | 5.9 (3.3) | 6.8 (3.0) | 4.2 (3.1)* |
| No. of Diseases | 1002 | 2.0 (1.4) | 1.8 (1.4) | 2.3 (1.5)* |
| No. of blocks walked | 920 | 8.2 (17.2) | 9.8 (18.6) | 4.5 (12.6)* |
| Flights of stairs climbed | 918 | 20.0 (25.7) | 22.3 (27) | 14.8 (21.7)* |
| Former/Current Smoker, n,(%) | 1002 | 469 (46.8) | 315 (31.4) | 154 (15.4) |
n = number of subjects, m = mean, SD = standard deviation
*
p < 0.05 comparing study group with excluded subjects
†
Disability Status- Mobility: self-reported difficulty walking a quarter-mile (i.e., 2-3 blocks) or climbing up 10 steps ADL: self- reported difficulty transferring from/into a bed or chair, bathing or showering, walking across a small room, dressing, eating, or using toilet.