Table 3.

Association between log-transformed serum BFRs and prevalence of COPD stratified by gender.

	Subgroup	OR (95%CI)	P-value	P for interaction
PBDE28	Male	2.15 (1.58, 2.92)	<0.0001	<0.05
	Female	1.01 (0.72, 1.41)	0.95
PBDE47	Male	2.08(1.62, 2.68)	<0.0001	<0.05
	Female	0.95 (0.69, 1.31)	0.77
PBDE85	Male	1.81 (1.44, 2.27)	<0.0001	<0.05
	Female	0.93 (0.70, 1.24)	0.62
PBDE99	Male	1.73 (1.41, 2.13)	<0.0001	<0.05
	Female	0.92 (0.70, 1.21)	0.56
PBDE100	Male	1.98 (1.56, 2.53)	<0.0001	<0.05
	Female	0.88 (0.65, 1.20)	0.42
PBDE154	Male	1.79 (1.44, 2.21)	<0.0001	<0.05
	Female	0.86 (0.64, 1.16)	0.31
PBDE183	Male	1.59 (1.27, 2.01)	<0.001	0.09
	Female	1.04 (0.70, 1.53)	0.86
PBDE209	Male	1.32 (1.05, 1.66)	0.02	0.10
	Female	0.94 (0.68, 1.31)	0.73
PBB153	Male	1.15 (0.90, 1.48)	0.27	0.59
	Female	1.39 (1.03, 1.87)	0.03