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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: Pediatr Pulmonol. 2019 Dec 5;55(2):330–337. doi: 10.1002/ppul.24595

Table 3:

Multivariable analysis of annual 1-hour max SO2 and spirometry variables in Puerto Rican children living in San Juan Metropolitan Area (n=505).

FVC
% predicted		 FEV1
% predicted		 FEV1/FVC
% predicted
Annual average 1-hr daily max SO2, ppb 0.92
(−1.21, 3.04)		 −0.52
(−2.55, 1.51)		 −1.42
(−2.78, −0.08)*
Asthma, yes −2.70
(−5.48, 0.08)		 −5.63
(−8.29, −2.97)** 		−3.17
(−4.94, −1.39)**

Results displayed as β (95% CI). %predicted based on GLI2012 prediction equations. Adjusted for annual income ≥$15,000/year, current second-hand tobacco smoke exposure, BMI z score, distance to a major roadway (m).

*

p value <0.05;

**

p value <0.01