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Table 1 Comparison of clinical features between deceased and survival patients

From: FluA-p score: a novel prediction rule for mortality in influenza A-related pneumonia patients

Variable

Total

(n = 693)

Deceased group

(n = 136)

Survival group

(n = 557)

p-value

Male (n, %)

461 (66.5)

92 (67.6)

369 (66.2)

0.757

Age ≥ 65 years (n, %)

272 (39.2)

60 (44.1)

212 (38.1)

0.195

Obesity (n, %)a

48 (6.9)

0 (0.0)

48 (8.6)

< 0.001

Pregnancy (n, %)

8 (1.2)

0 (0.0)

8 (1.4)

0.338

Smoking history (n, %)a

243 (35.1)

68 (50.0)

175 (31.4)

< 0.001

Comorbidities (n, %)

 Cardiovascular diseasea

136 (19.6)

48 (35.3)

88 (15.8)

< 0.001

 Diabetes mellitus

92 (13.3)

14 (10.3)

78 (14.0)

0.253

 Cerebrovascular disease

72 (10.4)

10 (7.4)

62 (11.1)

0.195

 COPDa

40 (5.8)

3 (2.2)

37 (6.6)

0.047

 Asthma

19 (2.7)

2 (1.5)

17 (3.1)

0.222

 Chronic kidney disease

16 (2.3)

6 (4.4)

10 (1.8)

0.139

 Malignant solid tumor

16 (2.3)

0 (0.0)

16 (2.9)

0.193

Clinical and radiologic characteristics (n, %)

 Respiratory rates ≥30 times/min

121 (17.5)

25 (18.4)

96 (17.2)

0.752

 Mental confusiona

32 (4.6)

32 (23.5)

0 (0.0)

< 0.001

 SBP < 90 mmHg

8 (1.2)

0 (0.0)

8 (1.4)

0.338

 Leukocytes > 10 × 109/La

118 (17.0)

42 (30.9)

76 (13.6)

< 0.001

 Lymphocytes < 0.8 × 109/La

299/677 (44.2)

120 (88.2)

179/541 (33.1)

< 0.001

 Hb < 100 g/La

69 (10.0)

34 (25.0)

35 (6.3)

< 0.001

 ALB < 35 g/La

58/639 (9.1)

12/131 (9.2)

46/508 (9.1)

0.970

 BUN > 7 mmol/La

183/685 (26.7)

97 (71.3)

86/549 (15.7)

< 0.001

 BG > 14 mmol/L

8 (1.2)

0 (0.0)

8 (1.4)

0.288

 Arterial PH < 7.35a

120/639 (18.8)

60 (44.1)

60/503 (11.9)

< 0.001

 pO2/FiO2 ≤ 250 mmHga

172/639 (26.9)

28 (20.6)

144/503 (28.6)

0.061

 Multilobar infiltratesa

546 (78.8)

120 (88.2)

426 (76.5)

0.003

 Pleural effusiona

120 (17.3)

36 (26.5)

84 (15.1)

< 0.001

Coinfections (n, %)a

265 (38.2)

84 (61.8)

181 (32.5)

< 0.001

Early NAI use (n, %)a

232 (33.5)

60 (43.4)

172 (30.9)

0.003

Systemic corticosteroid use (n, %)a

132 (19.0)

60 (44.1)

72 (12.9)

< 0.001

Noninvasive ventilation (n,%)

159 (22.9)

71 (52.2)

88 (15.8)

< 0.001

Invasive ventilation (n,%)

158 (22.8)

86 (63.2)

72 (12.9)

< 0.001

Admittance to ICU (n,%)

176 (25.4)

92 (67.6)

84 (15.1)

< 0.001

  1. The bolded values are p-values < 0.05, which represented significant differences between survival group and deceased group
  2. COPD chronic obstructive pulmonary disease, SBP systolic blood pressure, Hb hemoglobin, ALB albumin, BUN blood urea nitrogen, BG blood glucose, pO2/FiO2 arterial pressure of oxygen/fraction of inspiration oxygen, NAI neuraminidase inhibitor
  3. avariables cited in the table above were the candidates which were entered into the multivariate logistic regression model