Background
Methods
Brazos valley health assessment (BVHA)
Sample
Dependent variable
Independent variables
Descriptive statistics
Simultaneous quantile regression
Graphically representing effects by BMI classification
Results
Sample
Body Mass Index Classification (World Health Organization) | ||||||||
---|---|---|---|---|---|---|---|---|
Normal Weight
|
Overweight
|
Obese Class I
|
Obese Class II
|
Obese Class III
|
Total
|
X
2
2
|
p
| |
(n = 477)
|
(n = 664)
|
(n = 427)
|
(n = 177)
|
(n = 236)
|
(n = 1,981)
| |||
*Age | 61.96 (±15.00) | 61.70 (±13.34) | 59.09 (±12.95) | 56.45 (±10.88) | 54.65 (±13.61) | 59.96 (±13.73) | 71.837 |
<0.001
|
Sex | 43.79 |
<0.001
| ||||||
Male | 107 (22.4%) | 236 (35.5%) | 151 (35.4%) | 58 (32.8%) | 38 (16.1%) | 590 (29.8%) | ||
Female | 370 (77.6%) | 428 (64.5%) | 276 (64.6%) | 184 (67.2%) | 174 (73.7%) | 1,367 (69.0%) | ||
Not Provided | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 24 (10.2%) | 24 (1.2%) | ||
Race/Ethnicity | 124.47 |
<0.001
| ||||||
Non-Hispanic White | 409 (85.8%) | 558 (84.1%) | 341 (79.9%) | 136 (76.8%) | 130 (55.1%) | 1574 (79.4%) | ||
African-American | 32 (6.7%) | 44 (6.6%) | 46 (10.8%) | 18 (10.2%) | 44 (18.6%) | 184 (9.3%) | ||
Hispanic | 23 (4.8%) | 46 (6.9%) | 33 (7.7%) | 19 (10.7%) | 37 (15.7%) | 158 (8.0%) | ||
Not Provided | 13 (2.7%) | 16 (2.4%) | 7 (1.6%) | 4 (2.3%) | 25 (10.6%) | 65(3.3%) | ||
*Educational Attainment | 13.68 (±2.68) | 13.81 (±2.46) | 13.62 (±2.50) | 13.32 (±2.40) | 12.34 (±2.91) | 13.53 (±2.60) | 43.6 |
<0.001
|
(1 = First Grade, 17 = Graduate School) | ||||||||
Rurality | 3.97 | 0.41 | ||||||
Urban | 302 (63.3%) | 410 (61.7%) | 251 (58.8%) | 102 (57.6%) | 152 (64.4%) | 1217 (61.4%) | ||
Rural | 175 (36.67%) | 254 (38.3%) | 176 (41.2%) | 75 (42.4%) | 84 (35.6%) | 764 (38.6%) | ||
Hours per day spent watching television | 54.03 |
<0.001
| ||||||
Less than 1 h | 60 (12.6%) | 72 (10.8%) | 30 (7.0%) | 15 (8.5%) | 19 (8.1%) | 196 (9.9%) | ||
1-2 h | 142 (29.8%) | 198 (29.8%) | 109 (25.5%) | 34 (19.2%) | 45 (19.1%) | 528 (26.7%) | ||
2-4 h | 165 (34.6%) | 247 (37.2%) | 149 (34.9%) | 73 (41.2%) | 62 (26.3%) | 696 (35.1%) | ||
4-6 h | 57 (11.9%) | 87 (13.1%) | 81 (19.0%) | 29 (16.4%) | 38 (16.1%) | 292 (14.7%) | ||
More than 6 h | 43 (9.0%) | 49 (7.4%) | 48 (11.2%) | 24 (13.6%) | 38 (16.1%) | 202 (10.2%) | ||
Not Provided | 10 (2.1%) | 11 (1.7%) | 10 (2.3%) | 2 (1.1%) | 34 (14.4%) | 67 (3.4%) | ||
*Minutes per week of moderate physical activity | 209.27 ± (328.32) | 199.19 ± (366.12) | 206.99 ± (422.37) | 165.06 ± (381.67) | 109.05 ± (291.52) | 190.87 ± (365.95) | 77.65 |
<0.001
|
Simultaneous quantile regression--overall model results
Dependent Variable: Body Mass Index
| ||||||
---|---|---|---|---|---|---|
Model Parameters
| ||||||
Observations = 1,770 | ||||||
Iterations = 100 | ||||||
Categories = 5 | ||||||
Independent Variables | Coefficient | Bootstrap Standard Error | t |
p
| 95% Confidence Interval | |
Lower | Upper | |||||
Normal Weight (n = 477)
| ||||||
Age | -0.04 | 0.01 | -3.27 |
0.001
| -0.07 | -0.02 |
Sex (1 = Male, 2 = Female) | -1.75 | 0.45 | -3.92 |
<0.001
| -2.63 | -0.88 |
Non-Hispanic White | 0.29 | 0.58 | 0.50 | 0.614 | -0.85 | 1.43 |
African-American | 0.10 | 1.07 | 0.09 | 0.925 | -2.00 | 2.20 |
Hispanic | 1.51 | 0.74 | 2.05 |
0.041
| 0.06 | 2.96 |
Rurality (0 = Urban, 1 = Rural) | 0.53 | 0.45 | 1.18 | 0.238 | -0.35 | 1.42 |
Educational Attainment (1 = First Grade, 17 = Graduate School) | -0.04 | 0.08 | -0.56 | 0.574 | -0.19 | 0.11 |
Minutes per week of moderate physical activity | -0.0004 | 0.0004 | -0.83 | 0.407 | -0.0010 | 0.0005 |
Hours per day spent watching television | 0.35 | 0.19 | 1.84 | 0.066 | -0.02 | 0.71 |
Constant
|
26.28
|
2.06
|
12.75
|
<0.001
|
22.24
|
30.33
|
Overweight (n = 664)
| ||||||
Age | -0.07 | 0.01 | -4.91 |
<0.001
| -0.09 | -0.04 |
Sex (1 = Male, 2 = Female) | -1.32 | 0.30 | -4.37 |
<0.001
| -1.91 | -0.72 |
Non-Hispanic White | 1.48 | 0.62 | 2.39 |
0.017
| 0.27 | 2.69 |
African-American | 3.8 | 1.12 | 3.38 |
0.001
| 1.59 | 6.00 |
Hispanic | 2.15 | 0.75 | 2.88 |
0.004
| 0.68 | 3.62 |
Rurality (0 = Urban, 1 = Rural) | 0.82 | 0.34 | 2.41 |
0.016
| 0.15 | 1.48 |
Educational Attainment (1 = First Grade, 17 = Graduate School) | -0.13 | 0.07 | -1.72 | 0.086 | -0.27 | 0.02 |
Minutes per week of moderate physical activity | -0.0006 | 0.0005 | -1.29 | 0.197 | -0.0020 | 0.0003 |
Hours per day spent watching television | 0.87 | 0.15 | 5.78 |
<0.001
| 0.57 | 1.16 |
Constant
|
31.45
|
1.66
|
18.96
|
<0.001
|
28.20
|
34.7
|
Obese Class I (n = 427)
| ||||||
Age | -0.15 | 0.01 | -10.33 |
<0.001
| -0.18 | -0.12 |
Sex (1 = Male, 2 = Female) | -0.63 | 0.39 | -1.61 | 0.107 | -1.39 | 0.14 |
Non-Hispanic White | 2.14 | 0.94 | 2.27 |
0.023
| 0.29 | 3.98 |
African-American | 5.61 | 1.48 | 3.80 |
<0.001
| 2.71 | 8.51 |
Hispanic | 3.11 | 1.33 | 2.34 |
0.020
| 0.50 | 5.72 |
Rurality (0 = Urban, 1 = Rural) | 0.49 | 0.38 | 1.29 | 0.197 | -0.26 | 1.24 |
Educational Attainment (1 = First Grade, 17 = Graduate School) | -0.36 | 0.10 | -3.68 |
<0.001
| -0.56 | -0.17 |
Minutes per week of moderate physical activity | -0.0010 | 0.0004 | -2.77 |
0.006
| -0.0020 | -0.0003 |
Hours per day spent watching television | 1.02 | 0.19 | 5.36 |
<0.001
| 0.65 | 1.40 |
Constant
|
42.15
|
2.15
|
19.62
|
<0.001
|
37.93
|
46.36
|
Obese Class II (n = 177)
| ||||||
Age | -0.19 | 0.03 | -6.46 |
<0.001
| -0.25 | -0.13 |
Sex (1 = Male, 2 = Female) | 0.44 | 0.59 | 0.74 | 0.462 | -0.73 | 1.60 |
Non-Hispanic White | 2.63 | 1.58 | 1.67 | 0.095 | -0.46 | 5.72 |
African-American | 8.25 | 2.21 | 3.74 |
<0.001
| 3.92 | 12.58 |
Hispanic | 2.50 | 1.32 | 1.90 | 0.058 | -0.08 | 5.08 |
Rurality (0 = Urban, 1 = Rural) | -0.07 | 0.67 | -0.11 | 0.915 | -1.39 | 1.25 |
Educational Attainment (1 = First Grade, 17 = Graduate School) | -0.53 | 0.13 | -3.96 |
<0.001
| -0.80 | -0.27 |
Minutes per week of moderate physical activity | -0.0020 | 0.0006 | -3.12 |
0.002
| -0.0030 | -0.0007 |
Hours per day spent watching television | 0.91 | 0.24 | 3.81 |
<0.001
| 0.44 | 1.37 |
Constant
|
49.62
|
3.77
|
13.16
|
<0.001
|
42.22
|
57.01
|
Obese Class III (n = 236)
| ||||||
Age | -0.25 | 0.06 | -4.12 |
<0.001
| -0.37 | -0.13 |
Sex (1 = Male, 2 = Female) | 2.92 | 1.17 | 2.50 |
0.012
| 0.63 | 5.21 |
Non-Hispanic White | 4.64 | 2.64 | 1.76 | 0.079 | -0.53 | 9.81 |
African-American | 12.14 | 4.74 | 2.56 |
0.011
| 2.85 | 21.44 |
Hispanic | 1.98 | 2.39 | 0.83 | 0.407 | -2.70 | 6.66 |
Rurality (0 = Urban, 1 = Rural) | 1.36 | 1.14 | 1.19 | 0.233 | -0.88 | 3.60 |
Educational Attainment (1 = First Grade, 17 = Graduate School) | -0.62 | 0.26 | -2.35 |
0.019
| -1.14 | -0.10 |
Minutes per week of moderate physical activity | -0.0020 | 0.0006 | -3.76 |
<0.001
| -0.0040 | -0.0010 |
Hours per day spent watching television | 1.87 | 0.45 | 4.18 |
<0.001
| 0.99 | 2.74 |
Constant
|
50.91
|
6.48
|
7.85
|
<0.001
|
38.20
|
63.62
|