Cardiovascular co-morbidity in patients with COPD in Bulgaria

Figures & data

Table 1. Demographic characteristics.

Category	Subgroup	Value (number)
Sex	Male	296
	Female	130
	Total	426
Average age	Male	66.67 (SD 9.08)
	Female	66.62 (SD 8.98)
Smoking status	Non-smokers	111
	Current smokers	138
	Former smokers	177
	Mean pack-years	38.16 (SD 16.75)
Occupational risk factors	Yes	170
	No	247
	Missing data	9

Table 2. Clinical characteristics.

Category	Subgroup	Number/percentage
COPD severity^a	GOLD A	30 (7%)
	GOLD B	149 (35%)
	GOLD C	65 (15%)
	GOLD D	182 (43%)
Exacerbations	Exacerbations in the last year (average)
	Male	2
	Female	2
	Exacerbations leading to ER visit or hospitalization (average)
	Male	1
	Female	1
CVD co-morbidity	Male	252 (85%)
	Female	107 (82%)
Number of CVD co-morbidities	Male	≥ 2 (82%)
	Female	≥ 2 (83%)

^a Assessed by the GOLD ABCD tool [1].

Figure 1. CVD co-morbidities according to COPD severity.

Table 3. Hospitalization rate and average hospital stay according to GOLD ABCD.

	GOLD A		GOLD B		GOLD C		GOLD D
	Female	Male	Female	Male	Female	Male	Female	Male
Total number of patients	11	19	47	102	18	47	54	128
Total number of exacerbations (%)	6	8	44	109	39	95	183	424
Average number of exacerbations	1	1	0.9	1.07	2.17	2	3.39	3.31
	(SD 0.57)	(SD 0.58)	(SD 1.6)	(SD 1.60)	(SD 1.63)	(SD 1.62)	(SD 1.64)	(SD 1.63)
Total number of hospitalizations/ER visits	1	0	17	42	11	33	88	178
Average number of hospitalizations/ER visits	1	0	0.4	0.4	3.95	0.7	6.3	1.4
	(SD 0.58)	(SD 0)	(SD 1.09)	(SD 1.08)	(SD 8.58)	(SD 1.10)	(SD 1.16)	(SD 1.13)
Total number of hospital days in the last year	9	0	122	322	71	47	603	1364
Average number of hospital days in the last year	0.8	0	2.6	3.19	0.61	5.4	11.17	10.66
	(SD 7.09)	(SD 0)	(SD 8.39)	(SD 8.32)	(SD 1.12)	(SD 8.44)	(SD 8.51)	(SD 8.77)

Figure 2. CVD co-morbidities in COPD and CAT score.

GOLD 2019. [cited 2019 May]. Available from: http://goldcopd.org/wp-content/uploads/2017/11/GOLD-2010-v6.0-FINAL-revised-20-Nov_WMS.pdf.

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