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Table 1 Descriptive statistics by mortality status and crude associations with mortality within 30 days of initial hospitalization for community acquired pneumonia.

From: Predictors of inhospital mortality and re-hospitalization in older adults with community-acquired pneumonia: a prospective cohort study

Factorsa Mortality within 30 days (n = 49) Alive at 30 days (n = 603) Mortality vs. alive at 30 days
    OR (95% CI) P
Demographic factors     
Age (years)b 79.3 (8.6) 79.1 (7.6) 0.26 (-1.98, 2.50) .819
Male Sex 31 (64.6) 365 (60.4) 1.19 (0.65, 2.21) .571
Married, living with spouse 29 (60.4) 310 (51.8) 1.42 (0.78, 2.58) .252
Living Alone 13 (26.5) 187 (32.6) 0.75 (0.39, 1.44) .384
BMIa 24.7 (4.7) 25.4 (5.9) -0.67 (-2.49, 1.15) .471
Low socioeconomic status     
Education (< high school) 32 (65.3) 366 (61.5) 1.18 (0.64, 2.17) .599
Empiric Antibiotic Use     
Appropriate Antibiotics 44 (89.8) 511 (83.9) 1.69 (0.65, 4.36) .275
Pneumonia Severity     
CRB-65a 1.52 (0.7) 1.54 (0.7) -0.02 (-0.21, 0.17) .834
Immunization history     
Influenza Vaccine 38 (77.6) 473 (79.0) 0.92 (0.46, 1.85) .816
Pneumococcal Vaccine 24 (49.0) 342 (57.8) 0.70 (0.39, 1.26) .232
Comorbidities     
Asthma 13 (27.7) 142 (24.0) 1.21 (0.62, 2.35) .576
Cancer 11 (22.9) 156 (26.3) 0.83 (0.41, 1.67) .607
Cerebrovascular Diseasec 16 (33.3) 115 (19.3) 2.08 (1.11, 3.93) .021
Congestive Heart Failure 18 (39.1) 196 (33.5) 1.28 (0.69, 2.36) .438
COPDc 31 (66.0) 284 (48.0) 2.10 (1.13, 3.92) .018
Diabetes Mellitus 8 (16.7) 155 (26.0) 0.57 (0.26, 1.24) .152
Dysphagia 10 (20.8) 78 (13.2) 1.73 (0.83, 3.62) .138
Hip Fracturec 7 (14.6) 29 (4.9) 3.33 (1.38, 8.07) .005
Liver Diseasec, d 4 (8.7) 11 (1.9) 5.03 (1.54, 16.48) .003
Renal Disease 9 (20.0) 109 (18.6) 1.10 (0.51, 2.34) .812
Mineral supplement and medication history     
Vitamin E Supplementation 9 (18.3) 134 (23.1) 0.75 (0.35, 1.58) .448
Zinc Supplementation 5 (10.2) 65 (11.4) 0.88 (0.34, 2.30) .796
Immunosuppressive Drugs 8 (18.2) 93 (16.4) 1.13 (0.51, 2.51) .760
Lifestyle factors     
Smoking (> 100 cigarettes) 39 (79.6) 447 (74.3) 1.35 (0.66, 2.77) .409
Household Smoking 11 (22.5) 111 (18.4) 1.28 (0.63, 2.58) .489
Alcohol (gram/month)a 16.1 (41.3) 10.6 (36.8) 5.46 (-5.48, 16.40) .328
Nutritional Scorea 45.3 (8.8) 47.0 (6.8) -1.70 (-3.76, 0.35) .198
Low functional status     
Barthel Score (≤ 17) 12 (24.5) 142 (23.7) 1.04 (0.53, 2.06) .901
  1. aDescriptive statistics are expressed as mean (standard deviation (SD)) for continuous variables and count (percentage) for binary variables
  2. bContinuous variables
  3. cp ≤ .10
  4. dRare exposure (not considered as candidate variable for multivariable analysis for mortality even when it was statistically significant in univariate analysis).