Pectoralis muscle area and mortality in smokers without airflow obstruction

Respiratory Research

Table 1 Baseline characteristics of at-risk smokers by quartile of PMA (N = 3705)

	PMA Quartile^a
Variable	1 (< 31.8 cm²)		2 (31.8–41.2 cm²)		3 (41.3–53.5 cm²)		4 (> 53.5 cm²)
Age, −yrs	61	± 9	58	± 8	57	± 8	54	± 7
Male Sex, −%	6		33		70		90
Non-Hispanic White, −%	87		74		66		42
Height, −cm	163	± 7	168	± 9	173	± 9	176	± 8
BMI, −kg/m2	27	± 5	29	± 6	30	± 6	31	± 6
Pack Years of Smoking	37	± 20	39	± 22	40	± 21	38	± 20
Current Smoking Status, −%	42		54		59		65
Modified Medical Research Council Dyspnea Score > 1, −%	21		29		27		27
No. of Comorbidities^a, −%
0	39		37		40		45
1–2	51		51		48		45
3 or more	10		12		12		10
FEV₁, −% predicted	93	± 15	91	± 15	92	± 16	92	± 16
FVC, −% predicted	93	± 14	91	± 14	91	± 15	91	± 16
Six-minute walk distance, −m	455	± 100	443	± 111	452	± 114	456	± 109
PMA, −cm²	26.2	± 3.9	36.4	± 2.7	46.9	± 3.6	67.6	± 14.1
PVMA, −cm²	39.8	± 7.4	47.7	± 9.9	56.1	± 10.7	64.5	± 12.2
SAT, −cm²	67.9	± 32.7	69.4	± 37.2	58.7	± 38.0	51.7	± 37.7
%LAA-950 on CT scans, −%	2.1	± 2.8	2.0	± 2.9	1.9	± 2.2	1.2	± 1.6
CAC score	82	± 210	128	± 339	140	± 309	105	± 289

ISSN: 1465-993X