Research Article

Subnormal Peripheral Blood Leukocyte Counts Are Related to the Lowest Prevalence and Incidence of Metabolic Syndrome: Tianjin Chronic Low-Grade Systemic Inflammation and Health Cohort Study

Table 1

Cross-sectional analysis: age- and sex-adjusted baseline characteristics of the subjects according to categories of peripheral blood leukocyte counts ( = 46,179)1.

Categories of peripheral blood leukocyte counts (range: ×1,000 cells/mm3) for trend2
Subnormal
(1.1–3.9)
Level 2
(4.0–4.9)
Level 3
(5.0–5.9)
Level 4
(6.0–6.9)
Level 5
(7.0–7.9)
Level 6
(8.0–8.9)
Level 7
(9.0–9.9)
Above-normal
(10.0–25.6)

Age (y)46.0 (45.6, 46.4)345.3 (45.1, 45.5)45.0 (44.8, 45.2)44.8 (44.5, 45)44.6 (44.2, 44.9)45 (44.4, 45.6)46.1 (45.2, 47)44.3 (43.2, 45.4)<0.0001
Sex (male, %)37.249.460.466.870.677.079.878.4<0.0001
BMI (kg/m2)23.5 (23.4, 23.7)24.2 (24.2, 24.3)24.9 (24.8, 24.9)25.4 (25.4, 25.5)25.8 (25.7, 25.9)26 (25.8, 26.1)25.9 (25.7, 26.2)25.9 (25.6, 26.2)<0.0001
Waist circumference (cm)80.3 (80.0, 80.6)81.9 (81.8, 82.1)83.6 (83.5, 83.8)85.0 (84.8, 85.1)86.3 (86, 86.5)86.5 (86.1, 86.9)86.9 (86.3, 87.5)86.7 (85.9, 87.4)<0.0001
TC (mmol/L)4.99 (4.96, 5.02)5.09 (5.07, 5.11)5.15 (5.13, 5.16)5.2 (5.18, 5.22)5.23 (5.2, 5.26)5.22 (5.18, 5.27)5.28 (5.21, 5.35)5.29 (5.2, 5.37)<0.0001
TG (mmol/L)1.22 (1.17, 1.27)1.38 (1.35, 1.4)1.56 (1.53, 1.58)1.69 (1.66, 1.72)1.89 (1.85, 1.92)1.91 (1.85, 1.97)2.05 (1.95, 2.14)2.03 (1.9, 2.15)<0.0001
LDL (mmol/L)2.97 (2.94, 3)3.04 (3.02, 3.05)3.07 (3.06, 3.09)3.11 (3.09, 3.12)3.12 (3.09, 3.14)3.11 (3.07, 3.14)3.13 (3.07, 3.19)3.13 (3.06, 3.2)<0.0001
HDL (mmol/L)1.52 (1.51, 1.53)1.47 (1.47, 1.48)1.43 (1.42, 1.43)1.4 (1.4, 1.41)1.38 (1.37, 1.39)1.36 (1.35, 1.38)1.37 (1.34, 1.39)1.36 (1.33, 1.39)<0.0001
SBP (mmHg)118.8
(118.2, 119.3)
120.3
(120, 120.6)
122.1
(121.8, 122.3)
122.7
(122.4, 123.1)
123.8
(123.4, 124.3)
124.5
(123.8, 125.2)
124.8
(123.7, 126)
124.2
(122.8, 125.6)
<0.0001
DBP (mmHg)75.4 (75.1, 75.8)76.6 (76.4, 76.8)77.5 (77.3, 77.7)78.1 (77.9, 78.3)78.7 (78.4, 79)79 (78.6, 79.5)79.1 (78.4, 79.9)78.1 (77.1, 79)<0.0001
FBS (mmol/L)4.94 (4.9, 4.98)4.98 (4.95, 5)5.04 (5.02, 5.06)5.07 (5.05, 5.09)5.11 (5.08, 5.15)5.14 (5.09, 5.2)5.13 (5.05, 5.22)5.07 (4.97, 5.17)<0.0001
Serum UA ( mol/L)290.5
(288.2, 292.8)
299.8
(298.5, 301.2)
310.1
(308.9, 311.2)
315.4
(314, 316.8)
320.5
(318.5, 322.5)
317.8
(314.6, 321)
321.4
(316.4, 326.5)
318.6
(312.4, 324.8)
<0.0001
Fibrinogen (g/L)2.61 (2.59, 2.63)2.67 (2.66, 2.67)2.68 (2.68, 2.69)2.73 (2.72, 2.74)2.75 (2.73, 2.76)2.79 (2.77, 2.82)2.85 (2.81, 2.89)2.81 (2.76, 2.86)<0.0001
Albumin (g/L)46.2 (46.1, 46.3)46.2 (46.1, 46.2)46.2 (46.1, 46.2)46.1 (46, 46.1)46 (45.9, 46.1)45.8 (45.7, 46)45.7 (45.4, 46)45.8 (45.5, 46.1)0.86
Smoking status (%)
 Smoker12.718.226.435.244.654.262.764.9<0.0001
 Ex-smoker0.100.050.050.030.100.100.000.000.52
Drinker (%)25.533.639.342.844.648.150.350.50.02
Family history of diseases (%)
 CVD25.525.825.724.725.625.824.524.90.37
 Hypertension39.740.842.441.941.544.741.942.0<0.01
 Hyperlipidemia0.670.540.600.720.580.520.540.000.38
 Diabetes14.515.416.616.717.619.221.019.8<0.0001

BMI: body mass index; TC: total cholesterol; TG: triglycerides; LDL: low-density lipoprotein cholesterol; HDL: high-density lipoprotein cholesterol; SBP: systolic blood pressure; DBP: diastolic blood pressure; FBS: fasting blood sugar; UA: uric acid; CVD: cardiovascular disease.
2Analysis of covariance or logistic regression analysis adjusted for age and sex where appropriate.
3Adjusted least squares mean (95% confidence interval) (all such values).