Table 3.

Heart compression fractions (%) by depths of compression and characteristics of subjects.

Characteristics	50 mms depth		60 mms depth		1/4 of EAPD depth		1/3 of EAPD depth
	mean (SD)	P	mean (SD)	P	mean (SD)	P	mean (SD)	P
All patient	41.5. ± 14.0		53.5. ± 15.0		42.4. ± 10.6		62.6. ± 10.7
Sex
Male	38.3 ± 13.5	<0.001	49.8 ± 14.2	<0.001	40 ± 10.2	<0.001	59.8 ± 9.7	<0.001
Female	46 ± 13.7		58.5 ± 14.8		45.6 ± 10.3		66.2 ± 10.8
BMI groups
<18.5	47.8 ± 14.9	<0.001	61.2 ± 15.9	<0.001	40.9 ± 10.7	<0.001	60.9 ± 10.2	<0.001
18.5–24.9	41.4 ± 13.4		53.3 ± 14.1		42.3 ± 10.7		62.5 ± 10.8
25–29.9	36.6 ± 12.5		47.4 ± 13.1		43.7 ± 10.1		64 ± 10.5
>=30	33.5 ± 11.8		43.6 ± 12.5		44.7 ± 10.6		65.3 ± 11.2
Regions
North	42.1 ± 13.7	<0.001	54.5 ± 14.8	<0.001	40.4 ± 9.6	<0.001	60.5 ± 9.3	<0.001
North East	42.4 ± 14.3		54.2 ± 15.5		41.4 ± 10.1		60.9 ± 10
East	39.3 ± 13.5		50.9 ± 14.6		42.4 ± 9.6		62.9 ± 9.8
Middle	43.6 ± 13.7		55.4 ± 14.4		45.6 ± 11.2		65.9 ± 11.7
South	40.1 ± 14.8		52.5 ± 15.7		40.4 ± 11		61.2 ± 10.8
Bangkok	38.2 ± 13.5		49.8 ± 14.5		41.9 ± 9.7		62.6 ± 9.5
Heart diseases
None	41.5 ± 14.1	0.141	53.5 ± 15.1	0.353	42.3 ± 10.6	0.078	62.5 ± 10.7	0.519
IHD/arrhythmia	43.6 ± 13		54.9 ± 13.8		44.2 ± 9.7		63.2 ± 9.6
Lung diseases
None	41.5 ± 13.3	<0.001	53.2 ± 14.3	<0.001	42.9 ± 10.1	0.026	63 ± 10.4	0.102
COPD/Asthma	43.3 ± 15.5		55.6 ± 16.6		41.6 ± 11		61.6 ± 11
Lung cancer/metastasis	40.6 ± 14.8		52.5 ± 15.6		41.8 ± 11.3		62.1 ± 11.2
Tuberculosis	44.6 ± 15.3		57.3 ± 16.5		41.6 ± 10.9		61.9 ± 10.3

BMI, body mass index; COPD, chronic obstructive pulmonary disorder; EAPD, external anteroposterior diameter; mm, millimeter; kg, kilogram; IHD, ischemic heart disease; NE, north east; SD, standard deviation.