Table 2.
Demographic and clinical results of 99 patients hospitalized for community-acquired pneumonia and correlation with etiology
| Characteristics | Total | Bacterial | Viral | Mixed | Unknown pathogen | P Value |
|---|---|---|---|---|---|---|
| No. of patient (%) | 99 | 19 (19) | 33 (33) | 33 (33) | 14 (14) | |
| Age, months (0.25; 0.75)a | 29.4 (17; 48) | 23.4 (19; 48) | 25.1 (15; 38) | 42.9 (24; 52) | 22.4 (11; 34) | 0.033c,e |
| Gender (m/f) | 48/51 | 11/8 | 17/16 | 14/19 | 6/8 | 0.692d |
| Antibiotics before hospitalization | 27 | 8 | 8 | 9 | 2 | 0.327d |
| Pneumonia stage Ib (non-severe) | 9 | 2 | 5 | 2 | 0 | 0.650d |
| Pneumonia stage IIb (severe) | 67 | 13 | 19 | 24 | 11 | |
| Pneumonia stage IIIb (very severe) | 23 | 4 | 9 | 7 | 3 | |
| Temperature at admission (0.25; 0.75)a | 39.1 (38.5; 39.8) | 39.0 (38.5; 39.8) | 39.2 (38.7; 39.8) | 39.1 (38.3; 39.6) | 38.8 (38.5; 39.5) | 0.308 |
| Symptoms of painb,f | 22 | 2 | 6 | 13 | 1 | 0.026d,g |
| Vomitingb | 45 | 8 | 13 | 18 | 6 | 0.634d |
| URSb | 11 | 1 | 4 | 3 | 3 | 0.505d |
| Dehydrationb | 25 | 9 | 2 | 8 | 6 | 0.003d,h |
| Oxygen requirementb | 26 | 5 | 11 | 7 | 3 | 0.693d |
| Radiological consolidationb | 77 | 16 | 25 | 26 | 10 | 0.911d |
| CRP mg/la | 167 (60; 200) | 200 (100; 204) | 88 (21; 194) | 200 (117; 250) | 142 (23; 192) | 0.009c,i |
| PCT ng/mla | 6.0 (1; 14) | 11.5 (5; 18) | 2.0 (0.5; 7.5) | 11.0 (3; 18) | 3.0 (0.5; 4) | 0.018c,j |
| WBC count (G/L)a | 15.0 (9; 21) | 15.0 (11; 19) | 12.0 (7; 21) | 16.0 (10; 21) | 15.5 (11; 18) | 0.591c |
| Band forms (G/L)a | 1.85 (0.6–3.8) | 2.65 (1.3; 3.8) | 1.4 (0.5; 2.6) | 1.82 (1.0; 4.0) | 1.31 (0.6; 3.1) | 0.417c |
| Duration of hospitalization, daysa (0.25; 0.75) | 2 (2; 4) | 3 (2; 9) | 2 (1; 4) | 2 (2; 4) | 2 (1; 3) | 0.255d |
aThe median value was used (25th quantile; 75th quantile)
bNumber of patients
cThe Kruskal–Wallis one-way analysis of variance was used
dThe Chi-square analysis was used
eFurther Kruskal–Wallis analyses showed that, after exclusion of unknown pathogen, results were significant between viral and mixed pneumonia (P = 0.017) but not between bacterial and mixed (P = 0.143) or viral and bacterial (P = 0.425)
fAbdominal, dorsal or thoracic pain
gFurther Chi-square analyses showed that, after exclusion of unknown pathogen, results were significant between mixed and bacterial group (P = 0.027), but not between mixed and viral group (P = 0.057), neither between bacterial and viral group (P = 0.461)
hFurther Chi-square analyses showed that difference was significant between viral and bacterial (P = 0.0004) or mixed (P = 0.039) group but not between bacterial and mixed group (P = 0.087)
iFurther Chi-square analyses showed that, after exclusion of unknown pathogen, results were significant between all bacterial infections (bacterial + mixed) and viral infections (P = 0.003), but not between bacterial and mixed (P = 0.803), neither between bacterial and viral (P = 0.023).
jFurther Chi-square analyses showed that, after exclusion of unknown pathogen, results were significant between all bacterial infections (bacterial + mixed) and viral infections (P = 0.009), but not between bacterial and mixed (P = 0.805), neither between bacterial and viral (P = 0.016)