Applied Biostatistics for the Health Sciences. Richard J. Rossi

Long bone, multiple, neck 0 = No FRA single area, or hip fracture 1 = Yes 16 pO2 from initial 0 = > 60 PO2 blood gases 1 = < 60 17 pH from initial 0 = > 7.25 PH blood gases 1 = < 7.25 18 pCO2 from initial 0 = < 45 PCO blood gases 1 = > 45 19 Bicarbonate from 0 = > 18 BIC Initial blood gases 1 = < 18 20 Creatinine from 0 = < 2.0 CRE initial blood gases 1 = > 2.0 21 Level of consciousness 0 = No coma or stupor LOC at ICU admission 1 = Deep stupor 2 = Coma

      1.4.6 Mammography Experience Study Data Set

The Mammography Experience Study data set consists of 412 observations on subjects from a study designed to investigate the factors associated with a woman’s knowledge, attitude, and behavior toward mammography exams. The data were collected by Dr. J. Zapka and Ms. D. Spotts of the University of Massachusetts, Division of Public Health. The variables included in this data set are summarized in Table 1.6.

Table 1.6 A Description of the Variables in the Mammography Experience Data Set

Variable	Description	Codes/Values	Name
1	Identification code	ID number	OBS
2	Mammograph experience	0 = Never	ME
		1 = Within 1 year
		2 = Over 1 year ago
3	“You do not need a mammogram unless	1 = Strongly agree	SYMPT
	you develop symptoms”	2 = Agree
		3 = Disagree
		4 = Strongly disagree
4	Perceived benefit of mammography	5–20	PB
5	Mother or sister with a history	0 = No	HIST
	of breast cancer	1 = Yes
6	“Has anyone taught you how to	0 = No	BSE
	examine your own breasts: that is BSE”	1 = Yes
7	“How likely is it that a mammogram	1 = Not likely	DETC
	could find a new case of	2 = Somewhat likely
	breast cancer”	3 = Very likely

      1.4.7 Benign Breast Disease Study

The Benign Breast Disease Study data set consists of data collected from 200 women in a case–control study designed to investigate the risk factors associated with benign breast disease at two hospitals in New Haven, Connecticut. The variables included in this data set are summarized in Table 1.7.

Table 1.7 A Description of the Variables in the Benign Breast Disease Study Data Set

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Variable	Description	Codes/Values	Name
1	Stratum	1–50	STR
2	Observation within a stratum	1 = Case	OBS