Table 4 Association of demographic variables, components of metabolic syndrome, and salivary leptin with high levels of plasma leptin in logistic regression model

Age (years)

46.50 (42.00-54.75)

48.00 (40.25-56.00)

1.010 (.975-1.047)

.581

1.043 (.971-1.120)

.246

Gender

Male (reference)

38 (29.69%)

15 (11.72%)

Female

26 (20.31%)

49 (38.28%)

4.774 (2.224-10.247)

<.001*

91.224 (13.397-621.151)

<.001*

Body mass index (kg/m²)

22.81 (21.18-24.74)

27.31 (23.87-29.96)

1.368 (1.207-1.549)

<.001*

1.621 (1.212-2.168)

.001*

Triglyceride (mg/dL)

89.00 (68.25-201.25)

160.50 (104.50-226.50)

1.002 (.999-1.005)

.124

.998 (.993-1.003)

.358

High density lipoprotein cholesterol (mg/dL)

60.00 (45.50-66.75)

47.50 (40.00-55.75)

.970 (.947-.994)

.015*

.966 (.938-.996)

.024*

Systolic blood pressure (mmHg)

125.50 (114.25-136.00)

128.00 (117.00-140.00)

1.012 (.989-1.036)

.310

.973 (.906-1.044)

.444

Diastolic blood pressure (mmHg)

80.00 (71.25-89.00)

81.00 (75.00-87.00)

1.007 (.973-1.043)

.684

1.037 (.942-1.142)

.458

Fasting plasma glucose (mg/dL)

94.00 (88.25-106.00)

99.50 (92.25-107.75)

.994 (.986-1.002)

.142

.987 (.969-1.005)

.143

Waist circumference (cm)

81.00 (74.00-86.00)

90.50 (86.00-94.75)

1.109 (1.060-1.161)

<.001*

1.099 (.978-1.236)

.113

Salivary Leptin (pg/ml)

45.26 (13.92-92.06)

30.19 (16.28-50.76)

.999 (.993-1.004)

.643

1.004 (.995-1.013)

.356