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Table 1 Demographics of study population

From: Early-life exposure to humidifier disinfectant determines the prognosis of lung function in children

 

HDLI survivors (n = 81)

Control group (n = 122)

P-value

mean or n (SD or %)

mean or n (SD or %)

Age at spirometry (years)

8.6 (2.2)

8.7 (1.8)

0.744

Age at DLco (years)

9.3 (2.6)

8.7 (1.8)

0.085

Sex

 Boy

47 (58.0)

81 (66.4)

0.226

 Girl

34 (42.0)

41 (33.6)

Height (cm) at spirometry

133.5 (15.2)

133.7 (12.4)

0.925

Weight (kg) at spirometry

32.6 (14.0)

32.7 (11.5)

0.952

BMI (kg/m2) at spirometry

17.5 (3.5)

17.8 (2.9)

0.542

Height (cm) at DLco

137.6 (16.1)

133.7 (12.4)

0.064

Weight (kg) at DLco

35.9 (15.9)

32.7 (11.5)

0.123

BMI (kg/m2) at DLco

18.1 (3.8)

17.8 (2.9)

0.468

  1. Data are presented as mean (standard deviation) or frequency (percentage) of subjects. P values for the comparison between HDLI survivors and controls calculated with the use of the Pearson chi-square test or the Student t test, as appropriate. HDLI, HD associated lung injury; N, number; SD, standard deviation; DLco, diffusing capacity of the lung for carbon monoxide; BMI, body mass index