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Table 2 Spirometry test results of the PROMPT cohort participants

From: Prevalence and burden of obstructive lung disease in the urban poor population of Ottawa, Canada: a community-based mixed-method, observational study

Mean (SD) Participants with spirometry
(N = 64)
Participants without OLD (Fixed Ratio) on spirometry
(N = 26)
Participants without OLD (LLN) on spirometry
(N = 35)
Participants with OLD (Fixed Ratio) on spirometry
(N = 38)
Participants with OLD (LLN) on spirometry
(N = 29)
Participants with significant reversibility on spirometry
(N = 10)
FEV1 (L)a 2.80 (1.04) 3.08 (0.90) 3.11 (0.97) 2.61 (1.11) 2.42 (1.02) 1.99 (0.80)
FEV1% Predicted 76.65 (23.64) 89.95 (19.49) 88.52 (19.41) 67.55 (22.04) 3.84 (0.73) 52.91 (17.48)
FVCb (L) 4.15 (1.31) 3.91 (1.13) 4.08 (1.33) 4.32 (1.41) 4.25 (1.30) 3.67 (1.18)
FVC % Predicted 76.75 (23.64) 91.34 (20.96) 91.95 (21.21) 88.12 (17.88) 86.38 (16.01) 77.17 (18.03)
FEV1/FVC 0.68 (0.15) 0.79 (0.06) 0.77 (0.08) 0.60 (0.15) 0.57 (0.15) 0.54 (0.13)
FEV1 Pre- & Post-bronchodilator Difference (L) −0.13 (0.71) −0.13 (0.58) −0.13 (0.56) −0.13 (0.79) −0.13 (0.87) 0.69 (0.35)
FEV1 Pre- &Post-bronchodilator Percent Difference (%) −1.94 (23.29) −3.49 (17.58) −2.91 (19.15) − 0.88 (26.69) − 0.77 (27.80) 35.54 (12.99)
  1. aFEV1 Forced Expiratory Volume in 1 s
  2. bFVC Forced Vital Capacity