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Table 1 Demographics and biometric, psychometric, sleep and biomarker data

From: Sex-based differences in remote monitoring of biometric, psychometric and biomarker indices in stable ischemic heart disease

 

Females N = 119 (60%)

Males N = 79 (40%)

P value

Demographics

Mean ± SD or % or Median (IQR)

 Age, years

64 ± 11

67 ± 11

0.06

 Non-white race

33

22

0.12

 Body mass index, kg/m2

27.5 (23.8, 31.7)

26.6 (24.6, 29.9)

0.73

 Systolic BP, mmHg

120 (110,132)

122 (112, 136)

0.16

 Diastolic BP, mmHg

68 (62, 74)

70 (66, 76)

0.019

 History of diabetes, %

19

23

0.68

 History of smoking, %

37

41

0.73

 Total cholesterol, mg/dL

148 (127, 190)

149 (123, 182)

0.79

 LDL cholesterol, mg/dL

68 (53, 97)

77 (57, 106)

0.07

 HDL cholesterol, mg/dL

54 (43, 67)

42 (36, 50)

 < 0.001

 Triglycerides, mg/dL

88 (64, 119)

110 (76, 158)

0.002

 Aspirin use, %

82

89

0.32

 Statin use, %

85

86

0.98

Biometric indices

Median (IQR) or Mean ± SD

 Steps per week

5,559 (3,423, 7,959)

6,008 (4,807, 9,080)

0.06

 Physical activity, min/week

   

  Light level

202 (146, 251)

180 (156, 227)

0.38

  Moderate/vigorous level

39 (32, 53)

37 (24, 51)

0.24

  Heart rate, beats/min

   

  During rest

67 ± 8

66 ± 8

0.39

  During activity

84 ± 11

82 ± 8

0.24

Psychometric indices*

Mean ± SD or Median (IQR)

 PROMIS scores

   

  Global physical health

45 ± 9

50 ± 9

0.001

  Physical function

43 (38, 51)

49 (43, 53)

0.001

  Depression

52 (41, 56)

41 (41, 54)

0.020

  Anxiety

54 (49, 58)

52 (44, 57)

0.039

  Fatigue

53 (46, 61)

49 (40, 55)

0.003

  Sleep disturbance

54 (46, 57)

48 (44, 53)

 < 0.001

 SAQ-7 scores

   

  Overall

72 (51, 85)

82 (73, 90)

0.001

  Physical limitation

75 (50, 100)

92 (67, 100)

0.013

 KCCQ scores

   

  Quality of life

63 (38, 88)

75 (63, 88)

 < 0.001

  Physical limitation

83 (52, 100)

92 (67, 100)

0.025

Sleep duration** (hours per day)

6.9 (6.3, 7.7)

6.8 (6.0, 7.3)

0.029

Cardiovascular risk biomarkers

Median (IQR)

 NT-proBNP (pgram/ml)

104 (59, 207)

185 (75, 527)

0.001

 u-hs-cTnI (ng/L)

1.25 (0.79, 2.68)

4.50 (1.97, 7.12)

 < 0.001

 hs-CRP (mg/dL)

0.15 (0.06, 0.40)

0.10 (0.04, 0.24)

0.08

Proportion with elevated biomarker levels

%

NT-proBNP

16.0% (19/119)

32.9% (26/79)

0.005

u-hs-cTnI

16.0% (19/119)

46.8% (37/79)

 < 0.001

hs-CRP

31.9% (38/119)

21.5% (17/79)

0.11

  1. *For the PROMIS, higher scores represented more of the concept being measured; for both the KCCQ and SAQ, the range of possible subscale scores was 0 to 100, with 100 representing the least burden of symptoms
  2. **Values are based on entries that contained non-zero or non-NA values
  3. NT‐proBNP N‐terminal pro‐b‐type natriuretic peptide); u‐hs‐cTnI ultra‐high sensitivity cardiac‐specific troponin I), hs‐CRP high‐sensitivity C‐reactive protein; levels of each biomarker were considered elevated if u-hs-cTnI > 5 ng/L, NT-pro-BNP > 300 pgram/mL and hs-CRP > 0.3 mg/dL, respectively
  4. Significant p-values are in bold