Table 1 Characteristics of the study population according to sleep quality

From: Poor sleep quality associated with high risk of hypertension and elevated blood pressure in China: results from a large population-based study

 

Overall (n=9404)

Poor sleep quality (n=2479)

Good sleep quality (n=6925)

P value

Age (years)

52.11±14.10

56.38±12.91

50.58±14.20

<0.001

Sex

 Males (%)

4770 (50.72)

1218 (49.13)

3552 (51.29)

0.065

BMI (kg m−2)

23.80±5.09

23.75±5.01

23.81±5.12

0.587

Hypertension (%)

4800 (51.04)

1729 (69.74)

3071 (44.35)

<0.001

SBP (mmHg)

136.43±24.73

146.56±26.14

132.80±23.15

<0.001

DBP (mmHg)

86.05±13.75

90.00±14.45

84.63±13.21

<0.001

Antihypertensive medication use (%)

3015 (32.06)

1185 (47.80)

1830 (26.42)

<0.001

Current drinker (%)

1663 (17.68)

459 (18.52)

1204 (17.39)

0.21

Current smoker (%)

2853 (30.34)

849 (34.25)

2004 (28.94)

<0.001

Tea habits (%)

2122 (22.56)

588 (23.72)

1534 (22.15)

0.11

Exercise habits (%)

3702 (39.37)

1015 (40.94)

2687 (38.80)

0.061

  1. Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure.
  2. Data are presented as mean±s.d. or number (%).
  3. The χ2 statistical test for nominal variables and one-way analysis of variance for continuous variables were performed to assess whether there were significant differences between the groups with and without sleep disorder.
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