Association of physical activity with lung function in lung-healthy German adults: results from the KORA FF4 study

Table 2 Association of physical activity with spirometric parameters

	MVPA	Total population (n = 341)		Never smokers (n = 159)		Ex- and current smokers (n = 182)
	Quartile^a	β (95% CI)	p-value	β (95% CI)	p-value	β (95% CI)	p-value
FEV₁, ml	2	72 (−44, 188)	0.22	44 (−129, 218)	0.62	81 (−78, 240)	0.32
	3	124 (7, 242)	0.04	167 (−7, 341)	0.06	60 (−104, 224)	0.47
	4	142 (23, 260)	0.02	84 (−89, 257)	0.34	195 (29, 360)	0.02
FVC, ml	2	91 (−52, 235)	0.21	48 (−160, 256)	0.65	114 (−87, 316)	0.27
	3	107 (−38, 251)	0.15	190 (−18, 398)	0.08	11 (−196, 219)	0.92
	4	155 (10, 301)	0.04	75 (−132, 282)	0.48	227 (18, 437)	0.04
FEV₁/FVC, %	2	0.01 (−1.18, 1.21)	0.98	−0.03 (−1.86, 1.80)	0.97	−0.10 (−1.72, 1.51)	0.90
	3	0.87 (−0.34, 2.07)	0.16	0.33 (−1.50, 2.17)	0.72	1.07 (−0.59, 2.74)	0.21
	4	0.64 (−0.57, 1.85)	0.30	0.70 (−1.12, 2.52)	0.45	0.56 (−1.12, 2.24)	0.51
FEF_25-75, ml/s	2	100 (−120, 319)	0.37	61 (−266, 388)	0.71	101 (−201, 403)	0.51
	3	277 (56, 499)	0.01	239 (−89, 566)	0.16	246 (−65, 558)	0.12
	4	161 (−63, 384)	0.16	106 (−220, 433)	0.52	213 (−102, 527)	0.19

MVPA moderate to vigorous physical activity, CI confidence interval, FEV ₁ forced expiratory volume in 1 s, FVC forced vital capacity, FEF _25-75 forced expiratory flow between 25% and 75% of FVC
^aLeast active MVPA quartile (1st quartile) was used as reference. All models were adjusted for sex, age, height, weight, education level, a doctor’s diagnosis of hay fever and depending on the population analyzed also by smoking status (never, ex- or current)
Statistically significant associations (p < 0.05) are shown in bold

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