. 2014 Jul 4;11(7):6871–6889. doi: 10.3390/ijerph110706871

Table 3.

Number of measurements (N), mean and standard deviation (SD) of lung function variables before, and 4 h and 24 h after exposure to different indoor sources and exposure levels.

Exposure Scenario	FEV₁ (L)						FVC (L)
	Pre		Post 4 h		Post 24 h		Pre		Post 4 h		Post 24 h
	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD
RA	46	3.60 ± 0.84	45	3.51 ± 0.79	47	3.56 ± 0.78	46	4.47 ± 1.00	45	4.34 ± 0.94	47	4.43 ± 0.95
CB1	33	3.50 ± 0.79	35	3.55 ± 0.80	34	3.60 ± 0.83	33	4.35 ± 0.96	35	4.37 ± 0.94	34	4.45 ± 0.99
CB2	38	3.53 ± 0.89	38	3.55 ±0.91	36	3.56 ± 0.89	38	4.45 ± 1.09	38	4.42 ± 1.08	36	4.44 ± 1.08
TB1	33	3.50 ± 0.88	36	3.49 ± 0.82	34	3.48 ± 0.84	33	4.42 ± 1.00	36	4.34 ± 0.90	34	4.35 ± 0.93
TB2	35	3.54 ± 0.75	35	3.57 ± 0.79	35	3.60 ± 0.75	35	4.43 ± 0.91	35	4.43 ± 0.95	35	4.49 ± 0.92
FS1	35	3.50 ± 0.88	36	3.46 ± 0.85	35	3.43 ± 0.91	35	4.37 ± 1.00	36	4.35 ± 0.99	35	4.35 ± 1.04
FS2	34	3.57 ± 0.68	33	3.44 ± 0.70	33	3.50 ± 0.71	46	4.47 ± 0.83	33	4.26 ± 0.79	33	4.33 ± 0.86
Exposure scenario	FEV₁/FVC (%)						MEF₂₅_%_–75% (L/s)
	Pre		Post 4 h		Post 24 h		Pre		Post 4 h		Post 24 h
	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Mean ± SD
RA	46	0.81 ± 0.07	45	0.81 ± 0.07	47	0.81 ± 0.08	46	3.47 ± 1.22	45	3.47 ± 1.19	47	3.45 ± 1.17
CB1	33	0.81 ± 0.08	35	0.81 ± 0.08	34	0.81 ± 0.08	33	3.48 ± 1.25	35	3.60 ± 1.27	34	3.58 ± 1.27
CB2	38	0.79 ± 0.07	38	0.80 ± 0.07	36	0.80 ± 0.07	38	3.28 ± 1.18	38	3.41 ± 1.22	36	3.37 ± 1.22
TB1	33	0.79 ± 0.08	36	0.80 ± 0.08	34	0.80 ± 0.08	33	3.35 ± 1.37	36	3.48 ± 1.37	34	3.44 ± 1.41
TB2	35	0.80 ± 0.07	35	0.81 ± 0.07	35	0.80 ± 0.07	35	3.35 ± 1.16	35	3.48 ± 1.21	35	3.42 ± 1.10
FS1	35	0.80 ± 0.09	36	0.80 ± 0.09	35	0.79 ± 0.10	35	3.41 ± 1.34	36	3.41 ± 1.39	35	3.28 ± 1.39
FS2	34	0.80 ± 0.07	33	0.81 ± 0.08	33	0.81 ± 0.08	34	3.35 ± 1.06	33	3.33 ± 1.18	33	3.35 ± 1.12

Notes: FEV₁: forced expiratory volume at 1 s, FVC: forced vital capacity, MEF₂₅_%–75%: averaged forced expiratory flow between the full expiration of 25% and 75% of the total FVC, L: liter, L/s: liter per second; %: percent; RA: room air, CB1: candles burning level 1, CB2: candles burning level 2, TB1: toasting bread level 1, TB2: toasting bread level 2, FS1: frying sausages level 1, FS2: frying sausages level 2.