Table 3 Comparison of Mycoplasma pneumonia with positive PCR from respiratory samples to patients with positive serology results
Variables | PCR positive n = 148 | Only IgM positive n = 159 | p-value1 | Only IgA positive n = 826 | p-value2 | Only IgG positive n = 973 | p-value3 |
|---|---|---|---|---|---|---|---|
Age ≥ 50 years | 23.6% | 23.3% | .841 | 67.6% | .000 | 60.5% | .000 |
Male gender | 45% | 38% | .240 | 58% | .003 | 54% | .026 |
Smoker | 29% | 42% | .017 | 37% | .037 | 34% | .243 |
Initial treatment setting | |||||||
-outpatient | 66% | 46% | .000 | 33% | .000 | 39% | .000 |
-hospitalized | 34% | 54% | 67% | 61% | |||
Fever | 68% | 59% | .081 | 55% | .003 | 56% | .004 |
Confusion | 3% | 2% | .632 | 9% | .013 | 8% | .023 |
CRB 65 Score | |||||||
0 | 74% | 70% | .499 | 41% | .000 | 46% | .000 |
1–2 | 22%/4% | 29%/1% | 42%/13% | 38%/12% | |||
3–4 | 0 | 1%/0 | 2%/1% | 3%/1% | |||
Mechanical ventilation | 0 | 1 patient | .332 | 23 patients | .040 | 20 patients | .078 |
Died within 30 days | 1 patient (0.7%) | 1 patient (0.6%) | .963 | 62 patients (7.5%) | .002 | 61 patients (6.3%) | .006 |