Table 1.
Descriptive Statistics by Parity Group.
| Characteristic | Total | 0 Children | 1–2 Children | 3–4 Children | ≥5 Children | p-value | ||
|---|---|---|---|---|---|---|---|---|
| Number of Participants | 1177 | 154 | 511 | 407 | 105 | -- | ||
| N (%) Clinic site | UAB | 526 (44.7%) | 73 (47.4%) | 263 (51.5%) | 161 (39.6%) | 29 (27.6%) | <.0001 | |
| UIowa | 651 (55.3%) | 81 (52.6%) | 248 (48.5%) | 246 (60.4%) | 76 (72.4%) | |||
| N (%) Race | White or Caucasian | 1023 (86.9%) | 139 (90.3%) | 429 (84.0%) | 362 (88.9%) | 93 (88.6%) | 0.1807 | |
| Black or African American | 141 (12.0%) | 13 (8.4%) | 74 (14.5%) | 42 (10.3%) | 12 (11.4%) | |||
| Other | 13 (1.1%) | 2 (1.3%) | 8 (1.6%) | 3 (0.7%) | 0 (0.0%) | |||
| Mean ± SD Age at 60m | 67.7 ± 7.5 | 65.5 ± 7.7 | 66.1 ± 7.2 | 69.3 ± 7.3 | 72.6 ± 6.7 | <.0001 | ||
| Mean ± SD BMI at 60m | 30.6 ± 6.1 | 31.6 ± 6.6 | 30.3 ± 6.4 | 30.6 ± 5.9 | 30.0 ± 4.6 | .0950 | ||
| Mean ± SD BMI at BL (enrollment visit) | 30.1 ± 5.9 | 31.0 ± 6.1 | 29.9 ± 6.1 | 30.2 ± 5.8 | 29.8 ± 4.9 | .2552 | ||
| Mean ± SD BMI at 25 yo (self-reported weight and height) | 22.2 ± 3.5 | 22.9 ± 4.2 | 22.0 ± 3.5 | 22.3 ± 3.5 | 22.2 ± 2.5 | .0252 | ||
| Mean ± SD PASE at BL (enrollment visit) | 162.8 ± 76.5 | 173.9 ± 72.9 | 164.9 ± 76.5 | 158.5 ± 78.4 | 153.4 ± 73.3 | .0916 | ||
| N (%) Marital Status | Married | 809 (68.7%) | 78 (50.6%) | 357 (69.9%) | 297 (73.0%) | 77 (73.3%) | <.0001 | |
| Widowed | 140 (11.9%) | 12 (7.8%) | 56 (11.0%) | 54 (13.3%) | 18 (17.1%) | |||
| Separated | 6 (0.5%) | 1 (0.6%) | 3 (0.6%) | 2 (0.5%) | 0 (0.0%) | |||
| Divorced | 161 (13.7%) | 12 (7.8%) | 88 (17.2%) | 51 (12.5%) | 10 (9.5%) | |||
| Single, never married | 54 (4.6%) | 46 (29.9%) | 6 (1.2%) | 2 (0.5%) | 0 (0.0%) | |||
| Other | 3 (0.3%) | 3 (1.9%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | |||
| No answer | 4 (0.3%) | 2 (1.3%) | 1 (0.2%) | 1 (0.2%) | 0 (0.0%) | |||
| N (%) Type of work – Most adult life | Sales, Office Work | 628 (53.4%) | 99 (64.3%) | 310 (60.7%) | 181 (44.5%) | 38 (36.2%) | <.0001 | |
| Skilled, Unskilled, Farming, Technician, Housework | 280 (23.8%) | 24 (15.6%) | 82 (16.0%) | 133 (32.7%) | 41 (39.0%) | |||
| Other | 269 (22.9%) | 31 (20.1%) | 119 (23.3%) | 93 (22.9%) | 26 (24.8%) | |||
| Mean ± SD CPEI (average right and left) | 18.5 ± 5.7 | 19.1 ± 6.0 | 18.9 ± 5.6 | 18.0 ± 5.7 | 17.5 ± 5.7 | .0172 | ||
| Mean ± SD CPEI (left side only) | 17.9 ± 6.6 | 18.6 ± 6.9 | 18.3 ± 6.5 | 17.6 ± 6.6 | 16.5 ± 6.7 | .0236 | ||
| Mean ± SD CPEI (right side only) | 19.1 ± 6.7 | 19.6 ± 6.6 | 19.5 ± 6.6 | 18.5 ± 7.0 | 18.5 ± 6.2 | .0826 | ||
Abbreviations: BMI, body mass index; CPEI, center of pressure excursion index; PASE, physical activity scale for the elderly