Table 3 Subgroup analysis of the association between SA (g/dL) and FVC%pred, FEV1%pred, FEF25–75%pred
Subgroup | FVC%pred | FEV1%pred | FEF25–75%pred | FEV1/FVC%pred |
|---|---|---|---|---|
β (95%CI) | β (95%CI) | β (95%CI) | β (95%CI) | |
Respiratory disease, (%) | ||||
Yes | 3.26(-0.39, 6.91) | 5.55(1.75, 9.34) | 11.81(4.50, 19.12) | 2.23(0.03, 4.43) |
No | 1.56(-0.52, 3.64) | 5.01(2.85, 7.17) | 9.95(5.79, 14.11) | 3.26(2.01, 4.52) |
P for interaction | 0.4171 | 0.8061 | 0.6572 | 0.4107 |
Thoracic/abdominal surgery | ||||
Yes | -2.64(-16.75, 11.47) | 4.35(-10.34, 19.03) | 21.24(-7.04, 49.53) | 6.49(-2.01, 15.00) |
No | 1.89(0.03, 3.75) | 4.99(3.05, 6.92) | 9.97(6.25, 13.70) | 2.94(1.82, 4.06) |
P for interaction | 0.5298 | 0. 9320 | 0.4356 | 0.4135 |
Gender | ||||
Male | 2.95(0.28, 5.62) | 7.23(4.46, 10.00) | 13.55(8.19, 18.90) | 4.15(2.54, 5.77) |
Female | 0.18(-2.41, 2.76) | 2.55(-0.13, 5.23) | 7.57(2.39, 12.76) | 2.20(0.63, 3.76) |
P for interaction | 0.1416 | 0.0169 | 0.1141 | 0.0866 |
Race/ethnicity | ||||
Mexican American | 1.09(-2.86, 5.04) | 4.45(0.34, 8.56) | 12.96(5.03, 20.90) | 3.07(0.68, 5.47) |
Other Hispanic | 8.45(2.91, 14. 00) | 9.45(3.67, 15.23) | 7.82(-3.33, 18.96) | 1.02(-2.34, 4.38) |
Non-Hispanic White | 1.76(-1.47, 5.00) | 6.34(2.97, 9.70) | 12.68(6.18, 19.18) | 4.10(2.14, 6.06) |
Non-Hispanic Black | 0.91(-2.86, 4.67) | 3.41(-0.51, 7.32) | 8.78(1.23, 16.33) | 2.82(0.54, 5.10) |
Other Race | -1.68(-7.89, 4.53) | 1.25(-5.21, 7.71) | 5.84(-6.63, 18.31) | 2.76(-0.99, 6.52) |
P for interaction | 0.1240 | 0.2885 | 0.7722 | 0.6219 |
Asthma | ||||
Yes | 2.45(-1.54, 6.44) | 6.11(1.96, 10.25) | 12.05(4.08, 20.02) | 4.00(1.58,6.46) |
No | 1.73(-0.33, 3.78) | 4.83(2.69, 6.96) | 10.04(5.92, 14.15) | 2.86(1.60.4.07) |
P for interaction | 0.7496 | 0.5855 | 0.6558 | 0.3960 |
smoking | ||||
Yes | 0.41(-2.94, 3.77) | 3.86(0.38, 7.35) | 9.58(2.85, 16.32) | 3.16(1.13, 5.19) |
No | 2.01(0.01, 4.01) | 5.16(3.08, 7.24) | 10.53(6.51, 14.55) | 3.03 (1.82, 4.24) |
P for interaction | 0.3834 | 0.4947 | 0.7969 | 0. 9050 |
Second-hand smoke | ||||
Yes | 2.24(-2.35, 6.83) | 6.98(2.21, 11.75) | 13.13(3.95, 22.32) | 4.42(1.66, 7.19) |
No | 1.85(-0.15, 3.86) | 4.73(2.64, 6.82) | 9.74(5.72, 13.76) | 2.74(1.54, 3.95) |
P for interaction | 0.8789 | 0.3931 | 0.5029 | 0.2698 |
BMI | ||||
Normal weight | 1.16(-0.95, 3.28) | 5.15(2.93, 7.37) | 10.81 (6.49, 15.13) | 3.77(2.47, 5.06) |
Overweight | 4.43(-0.16, 9.01) | 6.43(1.61, 11.24) | 10.33(0.96, 19.69) | 1.77(-1.05, 4.59) |
Obese | 2.90(-2.51, 8.31) | 3.88(-1.81, 9.57) | 10.87(-0.19, 21.94) | 1.32(-2.02, 4.65) |
P for interaction | 0.4069 | 0.7922 | 0.9955 | 0.2229 |