Socioeconomic Assessment and Impact of Social Security on Outcome in Patients Admitted with Suspected Coronary Chest Pain in the City of Salta, Argentina

Table 2

Baseline characteristics of the total population according to socioeconomic groups.

Characteristics, (𝑛)	Low (𝑛=448)	Middle (𝑛=379)	High (𝑛=155)	𝑃 value
Age, years*	65.0±13.6	60.6±12.5	57.9±13.2	<0.01
Male, 𝑛 (%)	215 (48.0)	253 (66.8)	120 (77.4)	<0.01
Smoking status				<0.01
Current smoker, 𝑛 (%)	79 (18.2)	99 (26.5)	60 (39.2)
Past smoker, 𝑛 (%)	281 (64.6)	193 (51.6)	63 (41.2)
Never smoker, 𝑛 (%)	75 (17.2)	82 (21.9)	30 (19.6)
Angina pectoris, 𝑛 (%)	116 (25.9)	75 (19.8)	32 (20.6)	0.09
CHF
Killip class 2–4, 𝑛 (%)	69 (15.4)	72 (19.0)	24 (15.5)	0.35
History of MI, 𝑛 (%)	47 (10.5)	36 (9.5)	11 (7.1)	0.46
CABG, 𝑛 (%)	25 (5.7)	15 (4.0)	7 (4.5)	0.53
PCI, 𝑛 (%)	45 (10.0)	42 (11.1)	11 (7.1)	0.38
Hypertension, 𝑛 (%)	303 (67.6)	243 (64.1)	88 (56.8)	0.05
History of DM 1, 𝑛 (%)	8 (1.8)	4 (1.1)	3 (1.9)	0.62
History of DM 2, 𝑛 (%)	83 (18.9)	84 (22.4)	20 (13.0)	0.04
STEMI, 𝑛 (%)	52 (11.9)	66 (17.6)	26 (17.1)	0.05
TnT release, 𝑛 (%)	168 (37.5)	157 (41.5)	63 (40.6)	0.48
eGFR (𝜇mol L^−1)*	80.3±29.2	81.7±28.2	83.0±26.6	0.55
Cholesterol/use of statin^†, 𝑛 (%)	81 (18.1)	52 (13.7)	27 (17.4)	0.22
Use of beta blockers, 𝑛 (%)	121 (27.6)	96 (25.6)	36 (23.4)	0.57
CHD, 𝑛 (%)	163 (36.9)	120 (31.7)	41 (26.5)	0.04
BMI (kg/m^2)*	28.2±4.8	27.9±4.2	28.2±3.9	0.60
25(OH)D (nM)*	50.2±18.2	51.5±15.8	53.1±15.3	0.17
BNP Quartiles				<0.01
Q1	94 (21.0)	93 (24.5)	58 (37.4)
Q2	92 (20.5)	106 (28.0)	48 (31.0)
Q3	121 (27.0)	94 (24.8)	31 (20.0)
Q4	141 (31.5)	86 (22.7)	18 (11.6)
hsCRP Quartiles				0.12
Q1	111 (24.8)	88 (23.4)	46 (29.7)
Q2	99 (22.1)	100 (26.6)	48 (31.0)
Q3	119 (26.6)	95 (25.3)	30 (19.4)
Q4	118 (26.4)	93 (24.7)	31 (20.0)

^†Concentration > 250 mg/dL.
*Mean ± SD.
SD: standard deviation; 25(OH)D: 25-hydroxyvitamin D; CHF: congestive heart failure; MI: myocardial infarction; CABG: coronary artery bypass grafting; PCI: percutaneous coronary intervention; DM: diabetes mellitus; STEMI: ST-elevation myocardial infarction; TnT: troponin T; eGFR: estimated glomerular filtration rate; CHD: coronary heart disease; BMI: body mass index; BNP: B-type natriuretic peptide; hsCRP: high sensitivity C-reactive protein.