Table 4 Univariable and multivariable linear regression analyses of the association between degree of macular ischemia and blood pressure in dipper and non-dipper group.

From: Non-dipping pattern of nocturnal blood pressure as a risk factor for macular ischemia in branch retinal vein occlusion

Variable

Unadjusted analysis

Adjusted analysis

β

p valuea

β

p valuea

24 h mean SBP (mmHg)

− 0.143

0.189

− 0.136

0.217

24 h mean DBP (mmHg)

− 0.155

0.155

− 0.123

0.289

Daytime SBP, mean (mmHg)

− 0.169

0.120

− 0.157

0.158

Daytime DBP, mean (mmHg)

− 0.195

0.073

− 0.165

0.160

Nighttime SBP, mean (mmHg)

0.041

0.711

0.049

0.660

Nighttime DBP, mean (mmHg)

0.046

0.671

0.101

0.383

Night-to-day SBP ratio, mean (%)

− 0.320

0.003

− 0.313

0.004

  1. Adjusted for variables in basic and clinical parameters associated with blood pressure (age, sex, body mass index, current smoking status, and alcohol drinking status).
  2. Night to day systolic blood pressure ratio (%) = (Daytime sysBP − Nighttime sysBP)/Daytime sysBP × 100.
  3. Statistically significant values are in boldface.
  4. SBP systolic blood pressure, DBP diastolic blood pressure.
  5. aBased on linear regression analysis.
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