miR-34a in serum is involved in mild-to-moderate COPD in women exposed to biomass smoke

BMC Pulmonary Medicine

Table 1 Anthropometric, clinical, and physiological characteristics of the study in women. Data are expressed as the mean ± SD (n=25)

Group	C	COPD-TS	COPD-BS	H-TS	H-BS
Characteristics
Age (years)	66.59 ± 8.11	69.4 ± 7.09	73.04 ± 6.66	62.12 ± 13.18	65.54 ± 11.52
Height (cm)	158 ± 8.10	153.92 ± 8.72	147.67 ± 8.45/	160 ± 5.9	144 ± 8.60/
Weight (Kg)	68.55 ± 11.59	68.8 ± 11.58	58.10 ± 12.25	71.77 ± 19.56	61.62 ± 12.85
BMI (Kg/m²)	27.33 ± 3.91	29.21 ± 5.48	26.73 ± 5.62	28.86 ± 5.48	29.63 ± 5.04
Physiological characteristics
FEV₁ % pred	96.25 ± 3.1	68.81 ± 5.26*	71.95 ± 6.16/	86.32 ± 4.2/*	80.14 ± 2.3/*
FEV₁/FVC ratio	80.02 ± 2.4	58.13 ± 3.1	59.12 ± 4.0	74.12 ± 2.3	74.5 ± 2.2/
GOLD grades	Case numbers (%)
I	0	4 (16)	4 (16)	0	0
II	0	21 (84)	21 (84)	0	0

Abbreviations: BMI body mass index, C control healthy women, COPD-BS COPD secondary to biomass smoke exposure, COPD-TS COPD secondary to tobacco smoking, FEV1% pred forced expiratory volume in 1 second (% predicted), FVC forced vital capacity, H-BS exposed to BS without COPD, H-TS exposed to TS without COPD. Data were analysed by a one-way ANOVA and Tukey's post hoc test. * P <0.01; * vs control; /* vs COPD-TS, H-TS or H-BS groups, respectively

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