Table 3—

Partial Pearson correlation coefficients (r_P) and regression equations for pulmonary function parameters with anthropometric data in adolescent females

	Subjects n	r_P	Regression	R²	p‐value
TLC
Height	43	0.69	0.08x–7.78	0.48	3×10⁻⁷
TVI	34	0.49	0.0004x+2.48	0.24	3×10⁻³
Weight	43	0.44	0.05x+1.97	0.19	3×10⁻³
PSt	31	0.33	0.159x+4.0549	0.11	0.07
PScateg	31	0.30	4.534±0.73	0.09	0.10
PST	27	0.33	4.534±0.73	0.11	0.10
Age	43	0.18	4.534±0.73	0.03	0.26
VC
Height	43	0.71	0.06x–5.41	0.50	1×10⁻⁷
TVI	34	0.59	0.0003x+1.9	0.35	2×10⁻⁴
Weight	43	0.57	0.04x+1.28	0.32	1×10⁻⁴
PST	27	0.32	3.5±0.512	0.10	0.11
PSt	31	0.24	3.5±0.512	0.06	0.10
PScateg	31	0.23	3.5±0.512	0.05	0.22
Age	43	0.04	3.5±0.512	0.002	0.82
FRC
Height	46	0.57	0.04x–5	0.32	4×10⁻⁵
PSt	32	0.32	0.1106x+1.815	0.10	0.07
PScateg	32	0.28	0.1919x+1.7798	0.08	0.12
Age	46	0.25	2.13±0.53	0.06	0.23
TVI	35	0.21	2.13±0.53	0.04	0.23
Weight	46	0.19	2.13±0.53	0.04	0.21
PST	27	0.16	2.13±0.53	0.03	0.42
T_L,CO
PST	23	0.50	3.643x+11.587	0.25	0.015
PScateg	30	0.28	9.58±2.73	0.08	0.13
PSt	30	0.20	9.58±2.73	0.04	0.30
Weight	43	0.19	9.58±2.73	0.04	0.22
Age	43	0.17	9.58±2.73	0.03	0.28
TVI	31	−0.10	9.58±2.73	0.01	0.59
Height	43	0.07	9.58±2.73	0.01	0.64
TVI
Weight	31	0.48	92x+649	0.23	0.007
Height	39	0.55	77.33–7075	0.30	3×10⁻⁴
Age	39	−0.04	5478±976	0.002	0.44
RV/TLC
Age	44	0.44	0.017x–0.0645	0.19	4×10⁻³
T_L,CO/FRC
Age	36	−0.15	9.58±2.73	0.02	0.38

When r_P is nonsignificant, mean±sd is given
TLC: total lung capacity (L)
VC: vital capacity (L)
FRC: functional residual capacity (L)
T_L,CO: lung transfer factor for carbon monoxide (mL·min⁻¹·mmHg⁻¹)
TVI: thoracic volume index (mL)
RV: residual volume (L)
PST: pubertal stage by Tanner scale
PSt: pubertal stage by time since menarche (yrs)
PScateg: pubertal stage by menarcheal category