Soluble receptor for advanced glycation end products in COPD: relationship with emphysema and chronic cor pulmonale: a case-control study

Table 4 sRAGE in 201 controls (univariate analysis)

Characteristics	n	Median	IQR	P-value
Smoking habits
Current smoker	101	884	622-1284	0.888
Former smoker	100	833	579-1035
Pack-years of smoking
>40	101	869	601-1305	1.000
≤40	100	856	600-1203
Systemic arterial hypertension
yes	75	790	619-1207	0.382
no	126	899	591-1248
Coronary artery disease
yes	55	874	671-1055	1.000
no	146	855	570-1292
Heart failure
yes	13	772	663-948	0.568
no	188	876	598-1247
Diabetes mellitus
yes	30	907	680-1124	0.435
no	171	851	584-1247
Dyslipidemia
yes	74	853	621-1008	0.884
no	127	874	580-1291
Statins
yes	47	772	617-951	0.182
no	154	899	582-1295

Definitions of abbreviations: sRAGE = soluble receptor for advanced glycation end products (pg/mL); IQr = interquartile range. The cutpoint of 40 pack-years is the median value measured in the whole sample.

ISSN: 1465-993X