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Table 2 Comparison of characteristics and outcomes between respondents and non-respondents

From: Quality of life after carotid endarterectomy

Variable Respondents
(n = 43)
Non-respondents
(n = 16)
p value
Age in years, median (P25–75) 68 (60–75) 71 (59–77) 0.585b
Sex, n (%)    0.589a
   Male 33 (77) 12 (75)  
   Female 10(23) 4 (25)  
BMI (Kg/m2), median (P25–P75) 26 (24–28) 25 (24–29) 0.809b
Duration of anesthesia (min.) median (P25–P75) 150 (120–180) 178 (150–206) 0.286b
General anesthesia/Regional anesthesia 16/27 6/10 0.606a
Total RCRI, median (P25–P75) 1 (1–2) 2 (1–2) 0.173b
Temperature at admission 35.77 ± 0.85 36.08 ± 0.67 0.276b
Troponin I at admission 0.02 ± 0.02 0.03 ± 0.03 0.278b
High-risk patients, n (%) 8 (19) 5 (31) 0.241a
Hypertension, n (%) 41 (95) 15 (94) 0.620a
Ischemic heart disease, n (%) 28 (65) 10(63) 0.595a
Congestive heart disease, n (%) 3 (7) 1(6) 0.705a
Cerebrovascular disease, n (%) 19 (44) 13(81) 0.011a
Insulin therapy for diabetes, n (%) 1 (2) 1(6) 0.472a
Preoperative serum creatinine > 2 mg/dl, n (%) 1(2) 0 (0) 0.729a
Hyperlipidemia, n (%) 36(84) 13(81) 0.549a
Dependency in I-ADL, n (%) 5 (12) 1(6) 0.477a
Dependency in P-ADL, n (%) 11(26) 3(19) 0.431a
Previous Katz, mean (SD) 0.26 ± 0.82 0.13 ± 0.5 0.548b
Previous Lawton, mean (SD) 5.91 ± 2.20 6.50 ± 1.16 0.493b
SAPS II, median (P25–75) 17 (12 – 20) 16 (12 – 22) 0.986b
APACHE II, median (P25–P75) 7 (6–9) 8 (6–11) 0.945b
Hours of ICU length of stay, median (P25–75) 20 (16–22) 20 (16–22) 0.797b
Days of hospital length of stay, median (P25–P75) 5 (4–7) 6 (5–8) 0.150b
  1. a Pearson χ2. b Mann-Whitney test.
  2. There were no significant differences after controlling for multiple comparisons
  3. BMI, Body Mass Index; RCRI, Revised Cardiac Risk Index; I-ADL, Instrumental Activities of Daily Living; P-ADL, Personal Activities of Daily Living; SAPS II, Simplified Acute Physiology Score, PACU, Post Anesthesia Care Unit; P25 and P75 are the 25th and 75th percentiles.