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Table 1 Participants’ characteristics according to resting heart rate quartiles

From: Resting heart rate and impaired glucose regulation in middle-aged and elderly Chinese people: a cross-sectional analysis

Variable

RHR quartile (bpm)

P value

Q1 < 71

Q2 71–78

Q3 79–86

Q4 > 86

n

2166

2691

2563

2478

 

Mean RHR, bpm

65 ± 4

75 ± 2

82 ± 2

96 ± 8

< 0.001

Males, n (%)

962 (44.4)

859 (31.9)

701 (27.4)

672 (27.1)

< 0.001

Age (years)

57.6 ± 7.5

56.1 ± 7.6

55.6 ± 8.0

55.2 ± 8.3

< 0.001

WC (cm)

85.3 ± 11.9

84.9 ± 10.2

84.7 ± 9.9

83.7 ± 10.4

< 0.001

Waist/hip ratio

0.9 ± 0.1

0.9 ± 0.1

0.9 ± 0.2

0.9 ± 0.1

0.002

BMI (kg/m2)

24.7 ± 3.3

24.7 ± 3.4

24.8 ± 7.8

24.3 ± 3.5

0.001

SBP (mm Hg)

129 ± 20

130 ± 18

132 ± 20

132 ± 19

< 0.001

DBP (mm Hg)

78 ± 10

79 ± 10

81 ± 10

83 ± 10

< 0.001

FPG (mmol/L)

6.1 ± 1.4

6.1 ± 1.6

6.5 ± 1.51

6.6 ± 2.2

< 0.001

2hPPG (mmol/L)

8.0 ± 3.5

8.3 ± 3.7

8.7 ± 3.7

9.7 ± 4.5

< 0.001

HbA1c

5.9 ± 0.9

6.0 ± 1.0

6.0 ± 1.0

6.1 ± 1.2

< 0.001

Fasting insulin (μU/ml)

6.0 (4.2–8.4)

6.5 (4.7–8.9)

6.8 (4.9–9.5)

7.0 (5.0–9.7)

< 0.001

HOMA-IR

1.6 (1.2–2.4)

1.7 (1.3–2.6)

1.8 (1.3–2.7)

2.0 (1.4–2.9)

< 0.001

TC (mmol/L)

4.6 ± 1.0

4.6 ± 1.0

4.6 ± 1.1

4.8 ± 1.1

< 0.001

TG (mmol/L)

1.3(0.9–1.9)

1.3 (0.9–1.9)

1.4 (1.0–2.1)

1.5 (1.0–2.2)

< 0.001

LDL-c (mmol/L)

2.6 ± 0.7

2.6 ± 0.8

2.6 ± 0.8

2.7 ± 0.8

0.022

HDL-c (mmol/L)

1.22 ± 0.31

1.22 ± 0.31

1.21 ± 0.31

1.25 ± 0.33

< 0.001

eGFR (ml min−1 1.73 m−2)

124.5 ± 25.6

125.8425.4

126.5 ± 25.8

124.1 ± 25.3

0.001

CRP (mg/L)

1.3 (0.5–3.4)

1.4 (0.5–3.4)

1.5 (0.6–3.7)

1.6(0.7–3.8)

< 0.001

Current smokers, n (%)

379 (17.5)

351 (13.0)

290 (11.3)

270 (10.9)

< 0.001

Current drinkers, n (%)

247 (11.4)

286 (10.6)

242 (9.4)

226 (9.1)

0.033

IGR, n (%)

666 (30.8)

887 (33.0)

927 (36.2)

935 (37.7)

< 0.001

Type 2 diabetes, n (%)

484 (22.4)

578 (21.5)

646 (25.2)

817 (33.0)

< 0.001

  1. The values are presented as the means ± the SDs, the medians (interquartile ranges) or the numbers (proportions)
  2. RHR resting heart rate, bpm beats/min, WC, waist circumference, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, FPG fasting plasma glucose, 2hPPG 2-h post-load plasma glucose, HbA1c hemoglobin A1c, TC total cholesterol, TG triglycerides, LDL low-density lipoprotein-cholesterol, HDL high-density lipoprotein-cholesterol, eGFR estimated glomerular filtration rate, CRP C reactive protein, IGR impaired glucose regulation
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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