Table 1 Comparison of clinical characteristics between the non-BAL and BAL groups.

From: A prediction model for bronchoalveolar lavage in children with Mycoplasma pneumoniae pneumonia and consolidation

Variable

Non-BAL group (n = 160)

BAL group (n = 163)

χ2/Z

P

Sex (Male/Female), n

87/73

80/83

0.907

0.341

Age [Median (IQR), years]

4.33 (3.00, 7.00)

5.67 (3.00, 8.00)

-1.959

0.050

Days of hospitalization

[Median (IQR), days]

5.00 (4.00, 7.00)

7.00 (6.00, 8.00)

-6.967

< 0.001

Season of admission, n (%)

 Spring

12 (7.5)

27 (16.0)

57.33

< 0.001

 Summer

22 (13.8)

63 (38.7)

  

 Autumn

43 (26.9)

48 (29.4)

  

 Winter

82 (51.3)

24 (14.7)

  

Fever, n (%)

129 (80.63)

150 (92.02)

8.917

0.003

Duration of fever

[Median (IQR), days]

4.00 (2.00, 6.75)

6.00 (4.00, 8.00)

-4.889

< 0.001

Peak temperature

[Median (IQR), ℃]

39.00 (38.50, 39.60)

39.50 (38.88, 39.80)

-3.11

0.002

Duration of macrolide

therapy [Median

(IQR), days]

5.00 (4.00, 5.00)

5.00 (5.00, 7.00)

-5.101

< 0.001

Use of glucocorticoids

, n (%)

15 (9.38)

6 (3.68)

4.306

0.038

Severe MPP,

n (%)

18 (11.25)

26 (15.95)

1.518

0.218

Pulmonary signs,

n (%)

98 (61.25)

111 (68.10)

1.658

0.198

Moist rales, n (%)

81 (50.63)

93 (57.06)

1.343

0.246

Wheezing/rhonchi,

n (%)

24 (15.00)

12 (7.36)

4757

0.029