Table 1 General clinical characteristics of the participants.

From: Triglyceride glucose-body mass index as a mediator of hypertension risk in obstructive sleep apnoea syndrome: a mediation analysis study

Characteristics

Non-hypertension (n = 267)

Hypertension (n = 573)

P

Age (years)

52.06 (9.64)

55.90 (10.24)

 < 0.001

Sex, n (%)

0.695

 Female

34 (12.70)

66 (11.50)

 

 Male

233 (87.30)

507(88.50)

 

BMI (kg /m2), n (%)

 < 0.001

 BMI < 18.5

1 (0.40)

2 (0.30)

 

 18.5 ≤ BMI < 24

78 (29.20)

91 (15.90)

 

 24.0 ≤ BMI < 28

133 (33.80)

261 (45.50)

 

 BMI ≥ 28

55 (20.60)

219 (38.20)

 

WBC (× 109/L)

5.95 (1.67)

6.11 (1.71)

0.183

Haemoglobin (g/L)

141.72 (16.05)

142.47 (15.18)

0.512

Platelet (× 109/L)

212.79 (52.19)

207.71 (54.22)

0.201

Neutrophil (× 109/L)

3.54 (3.18)

3.56 (1.28)

0.903

Lymphocyte (× 109/L)

1.95 (0.59)

1.90 (0.69)

0.28

Monocyte (× 109/L)

0.42 (0.16)

0.44 (0.16)

0.055

NLR

1.90 (1.63)

2.03(1.05)

0.004

ALT(U/L)

32.37 (27.36)

32.14 (22.34)

0.898

AST(U/L)

25.03 (10.25)

25.87 (13.76)

0.379

Creatinine(μmol/L)

72.78 (23.53)

75.42 (23.63)

0.132

Uric acid(μmol/L)

373.00 (81.98)

394.89 (98.59)

0.002

FPG (mmol/L)

5.41 (1.23)

5.84 (1.70)

 < 0.001

Triglyceride(mmol/L)

2.36 (2.60)

2.90 (15.95)

0.587

HDL-C(mmol/L)

1.07 (0.32)

1.04 (0.39)

0.284

LDL-C(mmol/L)

2.70 (0.80)

2.60 (1.04)

0.15

TyG

8.92 (0.74)

9.00 (0.78)

0.166

TyG-BMI

230.86 (38.41)

245.68 (40.39)

 < 0.001

Sleep efficiency (%)

76.82 (16.18)

76.98 (17.25)

0.895

AHI

29.99 (19.12)

33.78 (19.67)

0.009

Lowest SpO2(%)

79.30 (9.29)

77.05 (11.34)

0.005

Mean SpO2(%)

94.91 (1.97)

94.50 (2.50)

0.019

ODI

23.56 (19.32)

26.64 (20.16)

0.037

Smoking, n (%)

120 (44.90)

236 (41.20)

0.305

Alcohol, n (%)

92 (34.50)

238 (41.50)

0.05

Diabetes, n (%)

54 (20.20)

240 (41.90)

 < 0.001

CHD, n (%)

37 (13.90)

164 (28.60)

 < 0.001

  1. Abbreviations: BMI, body mass index; WBC, white blood cell; NLR, neutrophil–lymphocyte ratio; ALT, alanine aminotransferase; AST, aspartate aminotransferase; FPG, fasting plasma glucose; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; TyG, triglyceride-glucose index; TyG-BMI, Triglyceride glucose-body mass index; AHI, apnea–hypopnea index; SpO2, Oxygen Saturation; ODI, oxygen desaturation index; CHD, coronary heart disease.