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Table 1 Anthropometry, scoliosis, lung volume and nocturnal oxygen saturation

From: Lung and chest wall volume during vital capacity manoeuvre in Osteogenesis Imperfecta

 

OI Type III

OI Type I-IV

 
 

median

1st Q

3rd Q

median

1st Q

3rd Q

p-value

Age (years)

37.0

32.7

45.8

33.3

17.2

44.5

0.409

Weight (kg)

34.6

27.55

46.2

58.0

46.8

66.2

< 0.001

Height (m)

1.03

0.99

1.15

1.39

1.33

1.45

< 0.001

BMI (kg/m 2 )

30.3

25.4

34.0

30.9

24.8

36.9

0.564

Thoracic scoliosis (Cobb angle)

30.0

30.0

40.0

30.0

20.0

30.0

0.083

Lumbar scoliosis (Cobb angle)

30.0

30.0

40.0

20.0

20.0

30.0

0.018

FVC (L)

0.92

0.68

1.33

2.23

2.11

2.55

<0.001

FVC (% predicted)

66.4

46.1

79.6

82.3

74.6

90.8

0.059

FEV 1 (L)

0.73

0.51

1.09

1.88

1.60

2.44

<0.001

FEV 1 (% predicted)

66.0

40.9

80.9

79.6

69.2

95.0

0.026

FEV 1 /FVC (%)

77.9

72.7

86.8

84.7

80.5

86.2

0.436

TLC (L)

1.43

1.12

2.12

3.05

2.55

3.28

< 0.001

TLC (% predicted)

69.3

59.0

85.6

78.6

72.9

90.1

0.236

PEF (L/min)

180

150

250

290

270

300

0.002

PCF (L/min)

250

190

370

445

375

465

0.004

AHI (events/hour)

10.0

4.0

17.4

2.3

1.0

6.7

0.012

ODI (events/hour)

10.3

4.2

18.6

3.3

1.1

7.0

0.017

mean nocturnal SaO 2 (%)

93.2

91.0

94.2

95.2

93.5

95.6

0.006

  1. AHI: apnea-hypoapnea index; BMI: body mass index; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; ODI: oxygen desaturation index; PCF: peak cough flow; PEF: peak expiratory flow; TLC: total lung capacity.; 1st Q: first quartile; 3rd Q: third quartile