### Description

The Forced Vital Capacity (FVC) can be predicted in pediatric patients based on height and other physical characteristics.

NOTE: Quanjer et al provides many additional equations for FVC (page 201s).

Linear Equations Based on Height

FVC in liters for males 5-18 years old and 42-59 inches tall (Dickman) =

= (0.094 * (height in inches)) - 3.042

FVC in liters for males 5-18 years old and 60-78 inches tall (Dickman) =

= (0.174 * (age in years)) + (0.164 * (height in inches)) - 9.425

FVC in liters for females 5-18 years old and 42-59 inches tall (Dickman) =

= (0.077 * (height in inches)) - 2.371

FVC in liters for females 5-18 years old and 60-78 inches tall (Dickman) =

= (0.102 * (age in years)) + (0.117 * (height in inches)) - 5.869

FVC in liters for boys 5 to 18 years (Godfrey) =

= (0.06 * (height in cm)) - 5.71

FVC in liters for girls 5 to 18 years (Godfrey) =

= (0.049 * (height in cm)) - 4.42

FVC in liters for boys 4-19 years < 162.6 cm (Rosenthal) =

= (0.043 * (height in cm)) - 3.619

FVC in liters for boys 4-19 years >= 162.6 cm (Rosenthal) =

= (0.068 * (height in cm)) - 7.038

FVC in liters for girls 4-19 years < 152.6 cm (Rosenthal) =

= (0.030 * (height in cm)) - 3.311

FVC in liters  for girls 4-19 years >= 152.6 cm (Rosenthal) =

= (0.045 * (height in cm)) - 3.881

Exponent of Height

FVC in liters for 7 to 19 year olds (Hsu et al) =

= A * 10^(-3) * ((height in cm)^B)

Boys 7 - 19 years

A

B

black

1.07

2.93

hispanic

1.06

2.97

white

0.358

3.18

Girls 7 - 19 years

A

B

black

0.834

2.98

hispanic

1.25

2.92

white

2.57

2.78

FVC in liters for males (Polgar and Promadhat) =

= (0.0000044 * ((height in cm)^2.67))

FVC in liters for females (Polgar and Promadhat) =

= (0.0000033 * ((height in cm)^2.72))

Natural Logarithm

FVC in liters (Wang et al) =

= EXP((B * (LN(height in meters))) + A)

Boys - Age in Years

A

B

6

-0.024

2.470

7

-0.018

2.489

8

0.005

2.443

9

0.017

2.426

10

0.030

2.407

11

0.009

2.468

12

-0.061

2.649

13

-0.175

2.924

14

-0.219

3.060

15

-0.079

2.859

16

0.104

2.591

17

0.253

2.374

18

0.296

2.316

Girls - Age in Years

A

B

6

-0.013

2.007

7

-0.062

2.385

8

-0.055

2.381

9

-0.039

2.351

10

-0.068

2.458

11

-0.120

2.617

12

-0.174

2.776

13

-0.061

2.576

14

0.139

2.208

15

0.210

2.099

16

0.226

2.097

17

0.214

2.146

18

0.195

2.179