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. 2020 May 4;20:123. doi: 10.1186/s12890-020-1148-4

Table 1.

Subject Characteristics

Vitamin D Deficient Vitamin D Sufficient p value
n 563 981
Age in years 57.07 (7.92) 62.09 (8.67) < 0.001
Female 302 (53.6) 520 (53.0) 0.851
Non-Hispanic White 236 (41.9) 789 (80.4) < 0.001
African American 327 (58.1) 192 (19.6) < 0.001
Current Smoker 352 (62.5) 385 (39.2) < 0.001
Pack-years smoking 42.26 (25.99) 44.83 (24.56) 0.053
Post-bronchodilator FEV1 percent predicted 75.96 (25.01) 73.24 (24.86) 0.039
COPD 291 (51.8) 572 (58.3) 0.015

Mean (SD) or N(%) are shown