Establishment of Reference Norms for Lung Function Parameters of Healthy Sri Lankan Tamils

Table 3

Mean ± SD of lung function parameters of females in each age group.

Age group	VC (L)	FVC (L)	FEV1 (L)	FEV1%	FEF25–75 (L/S)	MEF75 (L/S)	MEF50 (L/S)	MEF25 (L/S)	PEFR (L/min)
14	2.54 ± 0.37	2.66 ± 0.31	2.39 ± 0.28	90.00 ± 4.22	3.00 ± 0.62	4.90 ± 0.74	3.47 ± 0.68	1.73 ± 0.51	310.67 ± 37.38
15	2.53 ± 0.40	2.63 ± 0.43	2.40 ± 0.35	91.60 ± 4.77	3.16 ± 0.63	4.94 ± 0.86	3.55 ± 0.74	1.80 ± 0.43	316.33 ± 46.66
16	2.49 ± 0.38	2.59 ± 0.43	2.38 ± 0.40	91.87 ± 4.29	3.17 ± 0.67	4.98 ± 0.75	3.57 ± 0.71	1.82 ± 0.51	311.14 ± 41.27
17	2.56 ± 0.30	2.65 ± 0.31	2.42 ± 0.30	91.35 ± 5.31	3.19 ± 0.75	5.09 ± 1.06	3.59 ± 0.79	1.83 ± 0.53	316.33 ± 47.06
18	2.67 ± 0.48	2.75 ± 0.50	2.48 ± 0.44	90.43 ± 5.64	3.22 ± 0.77	5.18 ± 1.04	3.57 ± 0.93	1.78 ± 0.54	331.3 ± 62.7
19	2.54 ± 0.31	2.67 ± 0.33	2.42 ± 0.32	90.8 ± 4.29	3.16 ± 0.79	5.11 ± 1.10	3.60 ± 0.89	1.74 ± 0.57	309.59 ± 42.47
20	2.67 ± 0.49	2.82 ± 0.49	2.54 ± 0.41	90.19 ± 5.36	3.23 ± 0.71	5.16 ± 1.21	3.65 ± 0.80	1.82 ± 0.49	324.91 ± 58.01
21–25	2.52 ± 0.52	2.69 ± 0.52	2.43 ± 0.41	90.65 ± 4.42	3.19 ± 0.68	5.32 ± 0.92	3.61 ± 0.75	1.83 ± 0.68	333.72 ± 42.09
26–30	2.45 ± 0.42	2.58 ± 0.41	2.25 ± 0.34	87.94 ± 4.83	2.74 ± 0.66	4.83 ± 1.05	3.20 ± 0.83	1.39 ± 0.36	322.69 ± 50.41
31–35	2.48 ± 0.37	2.60 ± 0.36	2.27 ± 0.29	87.33 ± 3.95	2.74 ± 0.51	5.10 ± 0.90	3.22 ± 0.65	1.34 ± 0.30	334.08 ± 53.26
36–40	2.39 ± 0.40	2.46 ± 0.40	2.13 ± 0.35	86.89 ± 4.92	2.63 ± 0.65	4.83 ± 1.04	3.13 ± 0.81	1.30 ± 0.38	317.76 ± 44.21
41–45	2.38 ± 0.30	2.45 ± 0.34	2.15 ± 0.30	87.66 ± 4.59	2.78 ± 0.63	5.31 ± 1.11	3.34 ± 0.78	1.36 ± 0.48	332.25 ± 55.35
46–50	2.18 ± 0.45	2.23 ± 0.45	1.93 ± 0.35	86.92 ± 4.20	2.42 ± 0.62	4.83 ± 1.37	2.95 ± 0.88	1.11 ± 0.26	311.75 ± 53.44
51–55	2.06 ± 0.43	2.13 ± 0.43	1.86 ± 0.36	87.54 ± 3.94	2.44 ± 0.67	4.50 ± 1.03	2.96 ± 0.77	1.14 ± 0.39	298.38 ± 51.93
56–60	1.87 ± 0.42	1.95 ± 0.45	1.69 ± 0.39	86.6 ± 3.79	2.13 ± 0.66	4.31 ± 1.31	2.65 ± 0.86	1.97 ± 0.30	272.5 ± 28.26
>60	1.70 ± 0.32	1.77 ± 0.33	1.51 ± 0.27	85.39 ± 5.09	1.93 ± 0.57	3.71 ± 0.92	2.39 ± 0.70	0.90 ± 0.30	263.00 ± 42.43