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

Table 3 Comparisons of metabolic components by quartile of FEV1 (% pred) among subjects with normal ventilator function

N = 431	1^st Quartile (≤0.979)	2^nd Quartile (>0.979, ≤ 1.069)	3^rd Quartile (>1.069, ≤ 1.182)	4^th Quartile (>1.182)	P value
Age (yrs)	41.44 ± 6.2	40.02 ± 5.5	41.09 ± 6.6	41.88 ± 6.9	0.163
Sex: male (%)	50 (46.3)^a	77 (71.3)^b	86 (79.6)^b,c	99 (91.7)^c	<0.001
BMI (kg/m²)	23.66 ± 3.4^a,b	23.51 ± 2.7^a	23.81 ± 2.8^a,b	24.64 ± 2.6^b	0.021
SBP (mmHg)	109.54 ± 12.3^a	113.52 ± 12.9^a,b	114.63 ± 11.4^b	116.26^b ± 10.5^b	<0.001
DBP (mmHg)	70.83 ± 10.1^a	72.59 ± 9.5^a,b	73.98 ± 9.2^a,b	75.05 ± 8.4^b	0.007
Fasting glucose (mg/dL)	93.69 ± 10.6	93.74 ± 8.9	97.05 ± 15.0	95.05 ± 13.9	0.156
Total cholesterol (mg/dL)	207.75 ± 37.0	198.38 ± 35.0	203.19 ± 35.1	204.04 ± 36.9	0.296
TG (mg/dL)	123.58 ± 159.9	135.86 ± 92.8	142.41 ± 91.9	155.04 ± 111.8	0.260
HDL-C (mg/dL)	57.07^a ± 11.6	53.03^b ± 12.5	53.29^ab ± 11.1	52.11^b ± 9.2	0.007
LDL-C (mg/dL)	119 ± 27.5	112.38 ± 27.9	116.16 ± 27.5	116.26 ± 29.5	0.411
Fasting insulin (uIU/mL)	6.87 ± 4.1	6.2 ± 2.8	6.88 ± 3.5	7.28 ± 3.7	0.169
Percent body fat (%)	25.73 ± 5.4^a	22.90 ± 5.4^b	22.55 ± 5.6^b	21.84 ± 4.5^b	<0.001
WHR	0.86 ± 0.1^a,b	0.86 ± 0.04^a	0.86 ± 0.04^a,b	0.88 ± 0.04^b	0.020
HOMA-IR	1.62 ± 1.2	1.45 ± 0.7	1.65 ± 1.0	1.7 ± 0.9	0.248
Ln(FABP4)	2.29 ± 0.5	2.2 ± 0.4	2.19 ± 0.5	2.19 ± 0.4	0.351
Smoking (%)	13 (12.1)	21 (19.6)	20 (18.7)	24 (22.4)	0.254

Different superscripts denote a significant difference between groups
Values were expressed as Mean ± SD or N (%)
FEV1 forced expiratory volume in 1 s, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, 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