Table 1 Characteristics of the subjects after admission. The data are expressed as the median (quartile distance) M (P25, P75) or the number of patients (percentage) n (%).WBC White blood cell count, N% neutrophil percentage, E% eosinophil percentage, PLT blood platelet counts, CRP C-reactive protein, LDH lactic dehydrogenase, Fer ferritin, D-D D-dimer ferritin, FDP Fibrinogen degradation products.

From: Construction and validation of a nomogram model to predict bronchiolitis Mycoplasma pneumoniae pneumonia in children

Variables

Bronchiolitis MMP group (n = 216)

Non-bronchiolitis MMP group (n = 316)

Z/χ²

P-value

Age [P50 (P25-P75)]

5 (3–7)

7 (6–9)

-8.265

< 0.001

Male (n, %)

124 (57.4)

161 (50.9)

2.151

0.142

Atopy (n, %)

123 (56.944)

109 (34.494)

26.297

< 0.001

Family history of atopy (n, %)

27 (12.5)

21 (6.6)

5.357

0.021

Fever (n, %)

212 (98.1)

316 (100.0)

3.676

0.055

Fever peak [P50 (P25-P75)]

39.4 (39.0-39.9)

39.5 (39.0–40.0)

-1.617

0.106

Wheezing (n, %)

95 (44.0)

9 (2.9)

138.027

< 0.001

Tachypnea (n, %)

104 (48.1)

65 (20.6)

45.020

< 0.001

Hypoxemia (n, %)

49 (22.7)

25 (8.0)

23.385

< 0.001

Depression of suprasternal fossae when breathing (n, %)

88 (40.7)

40 (12.7)

55.377

< 0.001

Rale (n, %)

205 (94.9)

245 (77.5)

29.711

< 0.001

Decreased breath sound (n, %)

20 (9.3)

69 (21.8)

14.567

< 0.001

WBC (×109/L) [P50 (P25-P75)]

8.72 (6.75–10.78)

7.61 (6.05–9.41)

-3.924

< 0.001

N% [P50 (P25-P75)]

64.40 (53.75–72.65)

65.30 (58.30–72.80)

-0.967

0.334

E% [P50 (P25-P75)]

0.900 (0.30–2.10)

0.80 (0.20–2.20)

-0.331

0.741

PLT (×109/L) [P50 (P25-P75)]

320.00 (255.00-388.25)

265.00 (217.00-353.50)

-4.471

< 0.001

CRP (mg/L) [P50 (P25-P75)]

7.23 (3.17–18.14)

12.76 (4.20-28.72)

-3.951

< 0.001

LDH (U/L) [P50 (P25-P75)]

352.00 (304.50–413.00)

311.00 (279.00-381.50)

-4.472

< 0.001

Fer (ug/L) [P50 (P25-P75)]

109.50 (82.90-149.40)

126.40 (91.10-181.80)

-3.071

0.002

D-D (ug/mL) [P50 (P25-P75)]

0.54 (0.39–0.93)

0.64 (0.40–1.17)

-1.785

0.074

FDP (ug/mL) [P50 (P25-P75)]

2.40 (1.60–3.70)

2.70 (1.77–4.50)

-1.823

0.068

Pleural effusion (n, %)

11 (5.1)

47 (14.9)

12.636

< 0.001

Liver dysfunction (n, %)

7 (3.24)

17 (5.38)

1.363

0.243

Myocardial damage (n, %)

0 (0.0)

5 (1.58)

1.960

0.162

Coagulation disorders (n, %)

22 (10.16)

53 (16.77)

4.597

0.032

Electrolyte disorders (n, %)

14 (6.48)

22 (6.96)

0.047

0.828