Implementation of a COPD Screening Questionnaire in an Outpatient HIV Clinic

Figures & data

Figure 1. Flow diagram of COPD screener tool, from administration to COPD diagnosis. Each box includes the number of patients completing the specified step in the continuum of COPD screening and diagnosis. Percentages represent the proportion of patients completing the preceding step. COPD=chronic obstructive pulmonary disease; MD=medical doctor; PFTs=pulmonary function tests.

Figure 2. Critical step-offs in the COPD screening process. Each bar represents the percent of participants completing the specified step in the continuum of COPD screening out of the total number of patients screen. COPD=chronic obstructive pulmonary disease.

Table 1. Demographic and spirometric characteristics of participants at stages of COPD screening.

	Initial screening	Spirometry	Spirometry	COPD	COPD
Characteristics	completed	ordered	completed	absent	present
N	889	64	19	14	5
Age, years	50.0 (11.0)	52.7 (6.8)	54.1 (6.0)	53.8 (6.6)	54.8 (4.6)
Male, n (%)	574 (65)	33 (52)	12 (63)	9 (64)	3 (60)
Black race, n (%)	715 (80)	54 (84)	18 (95)	13 (92)	5 (100)
FEV1/FVC			0.75 (0.08)	0.79 (0.05)	0.64 (0.04)
FEV1
Absolute, L			2.53 (0.8)	2.69 (0.8)	2.08 (0.5)
% Predicted			83.7 (17)	88.5 (16)	70.5 (9)
FVC
Absolute, L			3.33 (0.9)	3.38 (0.9)	3.21 (0.8)
% Predicted			89.6 (14)	90.2 (15)	88.1 (9)

Values presented as mean (SD) unless indicated otherwise.

COPD = chronic obstructive pulmonary disease; FEV₁ = forced expiratory volume in 1 second; FVC = forced vital capacity; L = liter; N = number.

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