The relationship between serum fatty-acid binding protein 4 level and lung function in Korean subjects with normal ventilatory function

Table 2 Comparisons of metabolic components by quartile of FVC (% pred) among subjects with normal ventilator function

N = 431	1^st Quartile	2^nd Quartile	3^rd Quartile	4^th Quartile	P value
N = 431	(≤0.993)	(>0.993, ≤ 1.044)	(>1.044, ≤ 1.127)	(>1.127)	P value
Age (yrs)	42.06 ± 6.4^a	42.42 ± 7.2^a	39.32 ± 5.0^b	40.61 ± 6.0^a,b	0.001
Sex: male (%)	58 (53.7)^a	84 (77.8)^b	79 (73.2)^b	91 (84.3)^b	<0.001
BMI (kg/m²)	23.62 ± 3.3	24.15 ± 3.1	23.84 ± 2.7	23.98 ± 2.5	0.595
SBP (mmHg)	110.83 ± 13.3	113.7 ± 12.0	114.81 ± 11.3	114.58 ± 11.0	0.057
DBP (mmHg)	71.67 ± 10.3	73.43 ± 9.1	73.8 ± 9.7	73.55 ± 8.4	0.325
Fasting glucose (mg/dL)	94.06 ± 11.9	95.84 ± 15.0	94.46 ± 8.8	95.15 ± 13.2	0.733
Total cholesterol (mg/dL)	206.54 ± 40.6	204.56 ± 31.2	202.79 ± 36.2	199.43 ± 35.7	0.522
TG (mg/dL)	140.83 ± 166.7	145.21 ± 121.4	140.4 ± 94.6	130.21 ± 62.7	0.817
HDL-C (mg/dL)	56.41 ± 13.4^a	53.48 ± 9.7^a,b	52.35 ± 11.5^b	53.27 ± 10.0^a,b	0.049
LDL-C (mg/dL)	117.16 ± 30.8	116.2 ± 25.1	117.33 ± 27.6	112.86 ± 29.0	0.650
Fasting insulin (uIU/mL)	7.21 ± 4.3	6.61 ± 3.1	6.79 ± 3.6	6.61 ± 3.1	0.571
Percent body fat (%)	24.90 ± 5.8^a	23.16 ± 5.8^a,b	22.93 ± 4.7^b	22.02 ± 5.2^b	0.001
WHR	0.86 ± 0.1	0.87 ± 0.1	0.86 ± 0.04	0.87 ± 0.04	0.448
HOMA-IR	1.72 ± 1.3	1.55 ± 0.8	1.6 ± 0.9	1.55 ± 0.8	0.537
Ln(FABP4)	2.34 ± 0.5^a	2.21 ± 0.5^a,b	2.19 ± 0.4^a,b	2.13 ± 0.5^b	0.008
Smoking (%)	12 (11.2)	20 (18.7)	20 (18.7)	26 (24.3)	0.095

Different superscripts denote a significant difference between groups
Values were expressed as Mean ± SD or N (%)
FVC forced vital capacity, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, TG triglyceride, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, WHR waist-hip ratio, HOMA-IR homeostasis model assessment-insulin resistance, Ln(FABP4) logarithmized form of fatty-acid binding protein 4

ISSN: 1471-2466