. 2020 Jun;32(2):64–73. doi: 10.4314/mmj.v32i2.3

Table 4.

Summary extracted spirometry (FEV1, FVC) or obstruction/low FVC where available. Blank cells indicate data that were not reported.

Author (year)	Group/subgroup	Asthma (%)	Low FVC (%)	Obstruction (%)	Reference range	FEV1, L Mean (SD)	FVC, L Mean (SD)	FEV1/FVC % Mean (SD)
Paediatric
Zverev et al 2001	School children
Cook 2013	Clinic		25	0	Local	1.45 (0.54)	1.68 (0.58)	86 (2.09)
Cook 2013	Clinic		58	0	Wang	−1.64^a	−1.49^a	−0.39^a
Mwalukomo 2016	Clinic - HIV infected		20	17.9	GLI	−1.31^a	−0.89^a	−0.27^a
Mwalukomo 2016	Clinic - HIV infected		17.2	12.4	Local	92.2^b	93.9^b	87.9^b
Lelijveld 2017	Cases - clinic				GLI	−0.47 (1.1)^a	−0.32 (1.0)^a	−0.21 (0.9)^a
	Controls - siblings				GLI	−0.48 (1.0)^a	−0.38 (1.1)^a	−0.15 (0.9)^a
	Controls - population				GLI	−0.34 (1.1)^a	−0.15 (1.1)^a	0.16 (1.0)^a
Rylance 2019	Intervention	4.2	6.6	6.6	GLI	−0.41 (0.92)^a	−0.22 (0.77)^a	−0.4 (0.91)^a
	Controls	4.6	9.0	7.5	GLI	−0.60 (0.97)	−0.44 (0.98)^a	−0.34 (0.93)^a
	Population	3.9	6.3	7.1	GLI	−0.48 (0.93)	−0.30 (0.96)	−.038 (0.90)
Adult
Fullerton 2011	Charcoal users	7	2.7	13.6	Knudsen & asthma self-reported	2.78 (0.68)	3.49 (0.87)	79.8 (7.5)
To 2012	Population	4.7
Jary 2014	Women cooking on cookstoves
Meghji 2016	Population	4.2	38.6	4.2	NHANES
Meghji 2016	Population	4.2	9	2.3^	Local
Manjomo 2016	Clinic	12.2
Wang et al 2016	Population
Banda 2017	Population reporting respiratory symptoms	7.6		0.15	Medical Diagnosis only
Das 2017	Women cooking on biomass
Das 2017	Wood users	8				2.43 (0.67)	3.19 (0.83)	76.5 (9.1)
Jary 2017	Cases - clinic	0	52.8	20	NHANES	2.73 (0.69)
Jary 2017	Controls	0	37.5	7.6	NHANES	2.48 (0.68)
Townend 2017	Population	5			NHANES			78 (8)
Cohen 2019^	TB re-treatment patients at hospital		19.4	5.83	NHANES
Nightingale 2019	Population		34.8	8.7	NHANES
Secondary analysis from Malawi pooled data 2019	Population		16.3 (Local) 37.5 (NHANES)	8.4	NHANES	2.64 (0.69)	3.28 (0.77)	80.5 (8.48)