Visual acuity 20/200 or worse at POM6 | 3 snellen lines of improvement at POM6 | Change in logMAR at POM6 from baseline | ||||||
N (total) | n (%) | Significance (p value) | n (%*) | Significance (p value) | Mean±SD (Snellen) | Significance (p value) | ||
SBP ≥180 mm Hg | y | 35 | 23 (65.7) | 0.116 | 14 (40.0) | 0.044 | −0.13±0.54 (20/27) | 0.018 |
n | 36 | 17 (47.2) | 23 (63.9) | −0.53±0.81 (20/68) | ||||
Sustained SBP ≥180 mm Hg | y | 22 | 19 (86.4) | 0.006 | 9 (40.9) | 0.205 | −0.17±0.60 (20/30) | 0.205 |
n | 49 | 21 (42.9) | 28 (57.1) | −0.41±0.75 (20/51) | ||||
MAP ≥120 mm Hg | y | 35 | 26 (74.3) | 0.003 | 17 (48.6) | 0.556 | −0.11±0.51 (20/26) | 0.003 |
n | 36 | 14 (38.9) | 20 (55.6) | −0.61±0.83 (20/81) | ||||
MAP ≤65 mm Hg | y | 14 | 5 (35.7) | 0.82 | 5 (35.7) | 0.170 | −0.21±0.88 (20/32) | 0.458 |
n | 57 | 35 (61.4) | 32 (68.1) | −0.36±0.67 (20/46) | ||||
Use of antihypertensives | y | 12 | 8 (66.7) | 0.429 | 7 (58.3) | 0.636 | −0.25±0.59 (20/36) | 0.672 |
n | 59 | 32 (54.2) | 30 (50.8) | −0.35±0.74 (20/45) | ||||
Use of vasopressors | y | 13 | 5 (38.5) | 0.150 | 5 (38.5) | 0.276 | −0.13±0.88 (20/27) | 0.263 |
n | 58 | 35 (60.3) | 32 (55.2) | −0.38±0.67 (20/48) |
Notes: χ2 p values reported for visual acuity 20/200 or worse and presence of three or greater Snellen lines of improvement. Independent t-test p value reported for change in logMAR at POM6 from baseline. Coefficients with p<0.05 are highlighted with darker border and cell shading.
*Per cent values reported as fraction of n out of N (total) for each parameter subgroup at POM6. Negative value of change in logMAR correlates with indicates improved vision.
MAP, mean arterial pressure; POM6, postoperative month 6; SBP, systolic blood pressure.