.01 | pft formula(+) | 0;1 | FREE TEXT | | B | This contains the actual formula used for the calculation of PFT
predicted values |

1 | type(+) | 0;2 | FREE TEXT | | D | This field is used to indicate which elements of the PFT the formula
applies to. For example, a TLC in this field would indicate that this
formula is used for Total Lung Capacity predicted values. This field
is used as a screen when the formula set is edited. |

2 | reference | 0;3 | FREE TEXT | | C | This field contains the name of the person developing the formula and the
year in which it was developed. |

3 | sex type | 0;4 | SET OF CODES | M:MALE F:FEMALE
| E | This field indicates whether the formula applies to male or female patients. |

3.5 | race type | 0;11 | SET OF CODES | B:BLACK O:ORIENTAL
| | This field is used for doing race corrections on certain PFT elements. It
indicates whether the formula for race correction applies to Black or
Oriental patients. |

4 | ci | 0;5 | NUMERIC | | | This field identifies the confidence interval. It is subtracted from the
predicted value to give a 95% confidence interval. Not all elements will have
confidence intervals. |

5 | see | 0;6 | FREE TEXT | | | This field identifies the standard error equivalent, ie the amount of variance
in the formula. |

6 | method | 0;7 | FREE TEXT | | | This field identifies the method by which the formula was calculated. |

7 | demographics | 0;8 | FREE TEXT | | | This field identifies the type of demographics on which the study was done
which resulted in the formula: ie, Black Males, White Females, etc. |

8 | smokers included | 0;9 | BOOLEAN | Y:YES N:NO
| | This field identifies whether or not smokers were included in the study that
resulted in the formula. |

9 | altitude | 0;10 | FREE TEXT | | | This field identifies the altitude at which the study that resulted in the
formula was done. |