Table 3 Multivariate linear regression analysis of visual acuity between the dipper and non-dipper groups of patients with branch retinal vein occlusion.

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

Variable

Dipper (n = 32)

Non-dipper (n = 54)

p-value

Baseline logMAR BCVA (Snellen)

Crude

0.33 ± 0.06 (20/43)

0.53 ± 0.05 (20/68)

0.014

Adjusted

0.33 ± 0.05 (20/43)

0.51 ± 0.04 (20/65)

0.019

 > 6 mos. logMAR BCVA (Snellen)

Crude

0.16 ± 0.06 (20/29)

0.39 ± 0.05 (20/49)

0.003

Adjusted

0.22 ± 0.05 (20/33)

0.37 ± 0.04 (20/46)

0.036

LogMAR BCVA changes between initial and > 6 mos. (Snellen)

Crude

0.17 ± 0.06 (20/30)

0.11 ± 0.03 (20/26)

0.364

Adjusted

0.15 ± 0.05 (20/28)

0.10 ± 0.04 (20/25)

0.433

  1. The non-dipper group showed significantly worse visual outcomes when compared to the dipper group.
  2. Night to day systolic blood pressure ratio (%) = (Daytime sysBP − Nighttime sysBP)/Daytime sysBP × 100.
  3. Dipper ≥ 10%; Non-dipper < 10%.
  4. Statistically significant values appear in boldface.
  5. Adjusted for variables in basic and clinical parameters associated with visual acuity (age, sex, body mass index, current smoking status, and alcohol drinking status).
  6. BCVA best-corrected visual acuity, logMAR logarithm of minimum angle resolution.
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