First Report of FVC and FEV1 Reference Values for Beninese Children Aged 11–16 Years
Table 4
FVC and FEV1 values measured from our study compared to that calculated using the ERS-93 equations.
(A) Age Year (Sex)
(B) CI_height (cm)
(C) Height (cm) standard
(D) CI_FVC (L) our study
(E) FVC (L) our study
(F) FVC (L) equation ERS-93
(G) Delta %
(H) CI_FEV1 (L) our study
(I) FEV1 (L) our study
(J) FEV1(L) equation ERS-93
(K) Delta %
11 yrs (Boys)
[140.7; 145.5]
143.1
[1.91; 2.21]
2.06
2.48*
+20.52
[1.46; 1.72]
1.59
2.17*
+36.24
12 yrs (Boys)
[147.0; 152.2]
149.6
[2.08; 2.36]
2.22
2.82*
+27.06
[1.62; 1.86]
1.73
2.45*
+41.54
13 yrs (Boys)
[152.6; 159.3]
155.9
[2.36; 2.78]
2.57
3.20*
+24.40
[1.84; 2.21]
2.03
2.76*
+36.09
14 yrs (Boys)
[156.5; 162.4]
159.4
[2.59; 2.97]
2.78
3.43*
+23.27
[2.06; 2.41]
2.23
2.95*
+32.47
15 yrs (Boys)
[159.4; 164.9]
162.1
[2.79; 3.19]
2.99
3.61*
+20.88
[2.00; 2.31]
2.16
3.11*
+43.99
16 yrs (Boys)
[160.7; 168.0]
164.3
[2.95; 3.46]
3.21
3.77*
+17.56
[1.99; 2.42]
2.20
3.24*
+47.40
11 yrs (Girls)
[143.1; 146.8]
144.9
[1.72; 1.98]
1.85
2.37*
+28.31
[1.35; 1.58]
1.46
2.24*
+53.19
12 yrs (Girls)
[149.1; 153.8]
151.4
[1.80; 2.08]
1.94
2.66*
+37.05
[1.34; 1.64]
1.49
2.47*
+65.98
13 yrs (Girls)
[148.8; 153.2]
151.0
[2.04; 2.34]
2.19
2.64*
+20.58
[1.58; 1.85]
1.72
2.46*
+42.94
14 yrs (Girls)
[139.3; 161.5]
150.4
[2.16; 2.42]
2.29
2.61*
+14.14
[1.77; 2.10]
1.93
2.44*
+26.26
15 yrs (Girls)
[153.3; 156.7]
154.9
[2.24; 2.54]
2.39
2.82*
+17.94
[1.75; 2.01]
1.88
2.60*
+38.33
16 yrs (Girls)
[153.8; 160.4]
157.0
[2.46; 2.96]
2.71
2.98*
+7.64
[1.76; 2.35]
2.05
2.68*
+30.59
(A): different categories of age, year, and sex; (B): confidence intervals (CI) of height; (C): reference values of height compatible with IC; (D): IC of FVC; (E) standard values of FVC according to IC; (F): FVC values obtained after introducing of the referential height in ERS/93 equation; (G): ; (H): CI of FEV1; (I): standard values of FEV1 according to IC; (J): FEV1 values obtained after introducing of the referential height in ERS-93 equation; (K): ; *ERS-93 values significantly different (P < 0.05) from standard values in our study.
