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Table 1 Comparison between variables of ICU and non-ICU patients

From: C-reactive protein serum levels as an early predictor of outcome in patients with pandemic H1N1 influenza A virus infection

Variable ICU
(n = 17)
Non-ICU
(n = 174)
p value
Time to ED (hours), median (IQR)* 96 (24 - 168) 72 (48 - 120) 0.506
Sys BP (mmHg), median (IQR) 128 (104 - 148) 125 (114 - 140) 0.904
Hypotension (sys BP < 90 mmHg), n (%) 0 (0) 4 (2.5) > 0.999
Dias BP (mmHg), median (IQR) 80(62 - 95) 77 (69 - 84) 0.619
Heart rate (beats/min), median (IQR) 100 (81 - 118) 96 (86 - 108) 0.640
Tachycardia (> 100 beats/min), n (%) 8 (47) 61 (38) 0.601
Fever (°C), median (IQR) 37.9 (37.2 - 38.3) 37.5 (37.1 - 38.3) 0.578
High fever (≥39.0°C), n (%) 2 (12) 25 (15) 0.751
Saturation (%), median (IQR) 92 (87 - 96) 97 (94 - 98) 0.006
Low saturation (≤90%), n (%) 7 (44) 18 (12) 0.003
Throat redness, n (%) 2 (12) 35 (20) 0.534
Lung auscultatory findings, n (%) 12 (71) 54 (31) 0.002
Dyspnea, n (%) 6 (35) 39 (22) 0.369
Stupor, n (%) 1 (6) 2 (1.1) 0.245
Pneumonia on chest X-ray, n (%) 12 (71) 62 (39) 0.018
WBC (×103/ml3), median (IQR) 7.4 (4.9 - 9.3) 7.8 (5.6 - 10.7) 0.611
% PNM (%), median (IQR) 85 (78 - 89) 78 (70 - 85) 0.010
PMN (×103/ml3), median(IQR) 5.9 (4.2 - 8.1) 5.6 (3.9 - 8.7) 0.750
% LYM (%), median(IQR) 8 (6 - 14) 12 (7 - 19) 0.087
LYM (×103/ml3), median(IQR) 0.6 (0.4 - 1.1) 0.9 (0.6 - 1.3) 0.057
Platelets (×103/ml3), median (IQR) 203 (155 - 222) 209 (169 - 251) 0.307
Creatinine (mg/dl), median (IQR) 1.1 (0.9 - 1.4) 1.1 (0.9 - 1.3) 0.603
Bilirubin (mg/dl), median (IQR) 0.5 (0.3 - 0.7) 0.5 (0.3 - 0.7) 0.882
Alkaline phosphatase (U/l), median (IQR) 62 (47 - 91) 55 (4 - 76) 0.347
ALT (mg/dl), median (IQR) 28 (18 - 47) 25 (17 - 34) 0.373
GGT (mg/dl), median (IQR) 29 (10 - 47) 30 (15 - 39) 0.863
CRP (mg/L), median (IQR) 123 (69 - 184) 40 (20 - 82) < 0.001
  1. *Time from symptom onset until arrival to the ED
  2. ED, emergency department; ICU, intensive care unit; Sys, systolic; Dias, diastolic; IQR, interquartile range; WBC, white blood cells; PMN, polymorphonuclears; Lym, lymphocytes; ALT, alanine aminotransferase; GGT, gamma-glutamyl transpeptidase; CRP, C-reactive protein