Table 2 The baseline characteristics of female asthma by quartiles of OBS.
From: Correlations between oxidative balance score and female asthma among U.S. adults
Variable | Q1 | Q2 | Q3 | Q4 | P |
|---|---|---|---|---|---|
OBS, range | [1,12] | (12,19] | (19,25] | (25,37] | |
Age | 46.41 (0.35) | 48.65 (0.32) | 48.06 (0.34) | 48.30 (0.41) | < 0.0001 |
Poverty | 2.48 (0.03) | 2.78 (0.04) | 3.10 (0.04) | 3.44 (0.04) | < 0.0001 |
Education level % (S.E.) | |||||
Less than high school | 7.25 (0.42) | 5.48 (0.40) | 3.55 (0.26) | 2.27 (0.21) | < 0.0001 |
High school | 41.28 (1.08) | 38.57 (0.94) | 31.17 (1.00) | 20.85 (0.83) | |
More than high school | 51.48 (1.20) | 55.94 (1.00) | 65.28 (1.05) | 76.87 (0.87) | |
Race % (S.E.) | |||||
Non-Hispanic White | 63.15 (1.44) | 67.73 (1.47) | 72.81 (1.23) | 76.85 (1.03) | < 0.0001 |
Non-Hispanic Black | 16.22 (0.97) | 13.81 (0.93) | 9.84 (0.65) | 6.16 (0.47) | |
Mexican American | 7.30 (0.65) | 7.02 (0.64) | 6.73 (0.55) | 6.75 (0.54) | |
Other | 13.33 (0.80) | 11.44 (0.75) | 10.62 (0.63) | 10.24 (0.55) | |
Smoke % (S.E.) | |||||
Never | 53.40 (0.92) | 56.93 (0.93) | 61.84 (0.95) | 68.44 (1.03) | < 0.0001 |
Former | 16.82 (0.72) | 21.31 (0.83) | 22.38 (0.84) | 23.14 (0.95) | |
Now | 29.78 (0.91) | 21.76 (0.84) | 15.78 (0.65) | 8.43 (0.58) | |
Alcohol % (S.E.) | |||||
Never | 17.61 (0.69) | 15.21 (0.74) | 14.99 (0.94) | 12.39 (0.84) | < 0.0001 |
Former | 16.01 (0.73) | 15.63 (0.64) | 12.46 (0.63) | 12.62 (0.64) | |
Mild | 24.05 (0.85) | 29.08 (0.94) | 33.09 (1.03) | 38.14 (1.06) | |
Moderate | 20.77 (0.90) | 21.20 (0.84) | 22.93 (0.90) | 23.51 (0.88) | |
Heavy | 21.56 (0.82) | 18.88 (0.75) | 16.53 (0.68) | 13.34 (0.72) | |
Diabetes % (SE) | |||||
No | 89.68 (0.51) | 89.18 (0.50) | 90.31 (0.60) | 92.90 (0.49) | < 0.0001 |
Yes | 10.32 (0.51) | 10.82 (0.50) | 9.69 (0.60) | 7.10 (0.49) | |
Hypertension % (SE) | |||||
No | 65.84 (0.94) | 64.38 (0.84) | 68.82 (0.90) | 73.31 (0.98) | < 0.0001 |
Yes | 34.16 (0.94) | 35.62 (0.84) | 31.18 (0.90) | 26.69 (0.98) | |
Coronary heart disease % (S.E.) | |||||
No | 97.20 (0.31) | 97.13 (0.32) | 97.83 (0.25) | 98.60 (0.22) | < 0.001 |
Yes | 2.80 (0.31) | 2.87 (0.32) | 2.17 (0.25) | 1.40 (0.22) | |
Family history of asthma % (S.E.) | |||||
No | 73.44 (0.89) | 74.43 (0.76) | 76.71 (0.93) | 77.28 (0.87) | 0.004 |
Yes | 26.56 (0.89) | 25.57 (0.76) | 23.29 (0.93) | 22.72 (0.87) | |
Age group % (S.E.) | |||||
20–39 | 40.11 (0.97) | 33.13 (0.99) | 33.99 (0.92) | 32.93 (1.16) | < 0.0001 |
40–59 | 34.93 (0.83) | 38.48 (1.08) | 38.80 (0.93) | 40.98 (1.12) | |
>=60 | 24.96 (0.79) | 28.40 (0.83) | 27.22 (0.88) | 26.09 (1.03) | |
PIR % (S.E.) | |||||
Low | 32.03 (0.90) | 24.36 (0.94) | 18.59 (0.69) | 13.86 (0.70) | < 0.0001 |
Middle | 38.44 (0.86) | 39.00 (0.91) | 36.44 (0.95) | 31.71 (1.03) | |
High | 29.53 (0.95) | 36.63 (1.19) | 44.97 (1.17) | 54.43 (1.19) | |
BMI Group % (S.E.) | |||||
Under/Normal | 30.29 (0.89) | 30.88 (0.91) | 32.60 (0.92) | 45.36 (1.12) | < 0.0001 |
Overweight | 28.12 (0.93) | 27.93 (0.88) | 28.98 (0.87) | 26.41 (0.83) | |
Obese | 41.59 (1.03) | 41.18 (0.92) | 38.42 (0.92) | 28.23 (0.91) | |
Dietary OBS components | |||||
Dietary fiber (g/d) | 7.55 (0.08) | 11.50 (0.10) | 15.45 (0.09) | 22.11 (0.16) | < 0.0001 |
Riboflavin (mg/d) | 1.05 (0.01) | 1.55 (0.01) | 1.96 (0.01) | 2.57 (0.02) | < 0.0001 |
Niacin (mg/d) | 11.90 (0.10) | 17.23 (0.12) | 21.91 (0.14) | 27.71 (0.19) | < 0.0001 |
Vitamin B6 (mg/d) | 0.84 (0.01) | 1.35 (0.01) | 1.79 (0.01) | 2.47 (0.02) | < 0.0001 |
Total folate (mcg/d) | 185.78 (1.81) | 275.24 (2.13) | 366.61 (2.82) | 510.21 (4.05) | < 0.0001 |
Vitamin B12 (mcg/d) | 1.95 (0.03) | 3.36 (0.05) | 4.48 (0.06) | 6.23 (0.09) | < 0.0001 |
Vitamin C (mg/d) | 37.55 (0.93) | 57.54 (1.04) | 78.46 (1.08) | 119.03 (1.64) | < 0.0001 |
Vitamin E (ATE) (mg/d) | 3.60 (0.04) | 5.49 (0.05) | 7.55 (0.08) | 11.08 (0.12) | < 0.0001 |
Carotene (RE/d) | 1058.37 ( 46.23) | 1869.36 ( 55.46) | 2936.65 ( 77.17) | 4881.96 (111.22) | < 0.0001 |
Calcium(mg/d) | 449.87 (4.83) | 667.02 (5.93) | 867.32 (6.30) | 1159.73 (8.86) | < 0.0001 |
Magnesium (mg/d) | 139.28 (0.90) | 206.54 (1.01) | 270.65 (1.24) | 370.03 (1.97) | < 0.0001 |
Zinc (mg/d) | 5.34 (0.05) | 7.91 (0.07) | 10.20 (0.08) | 13.38 (0.10) | < 0.0001 |
Copper (mg/d) | 0.62 (0.00) | 0.90 (0.01) | 1.18 (0.01) | 1.61 (0.02) | < 0.0001 |
Selenium (mcg/d) | 56.55 (0.48) | 80.44 (0.49) | 99.92 (0.68) | 122.20 (0.94) | < 0.0001 |
Total fat (g/d) | 45.85 (0.49) | 61.42 (0.47) | 73.24 (0.55) | 85.13 (0.68) | < 0.0001 |
Iron (mg/d) | 7.43 (0.07) | 10.63 (0.08) | 13.51 (0.09) | 17.87 (0.14) | < 0.0001 |
Lifestyle OBS components | |||||
Alcohol (g/d) | 4.88 (0.37) | 5.80 (0.39) | 6.48 (0.35) | 6.44 (0.33) | 0.003 |
Physical activity (MET) | 3198.97 (146.97) | 2420.60 ( 91.38) | 2486.23 ( 81.30) | 2696.80 ( 91.13) | < 0.0001 |
Cotinine (ng/mL) | 80.67 (2.97) | 53.21 (2.61) | 33.73 (1.54) | 17.48 (1.40) | < 0.0001 |
BMI (kg/m2) | 29.59 (0.16) | 29.58 (0.14) | 29.27 (0.14) | 27.46 (0.15) | < 0.0001 |
