Table 2.

Descriptive Statistics for Chest Pain and Quality of Life Variables (n=134)

Variable	Potential range	Observed range	Mean	SD	Median
Chest pain frequency (#of episodes over the past 7 days)	0-∞	0–35	03.63	04.48	02.00
Fatigue (severity)	0–4	0–4	02.27	01.17	02.00
Dyspnea (severity)	0–4	0–4	01.91	01.22	02.00
SAQ-Physical Limitation	0–100	08.3–100	52.28	24.92	47.22
SAQ-Disease Perception§	0–100	00.0–100	50.94	23.65	50.00
SF-36 Physical Component Score	0–100	07.25–61.50	32.86	11.69	32.75
SF-36 Mental Component Score	0–100	20.21–71.55	46.93	11.88	47.00

Note: SD- standard deviation, SAQ-Seattle Angina Questionnaire, SF-Short Form

^§n for SAQ disease perception is 132.