Table 1.

Linear regression analyses for the association of breath H₂ measurement using AIRE and BreathTracker ¹.

	No. of H2 Measurements	R2	Slope (Mean ± SD)	Pearson Correlation (r)	p Value
Lactose challenge 2 (n = 12)
All readings including AIRE score = 10	96	0.67	12.64 ± 0.90	0.82	<0.001
Without AIRE score = 10	71	0.60	7.92 ± 0.77	0.77	<0.001
Milk challenge 3 (n = 7)
All readings including AIRE score = 10	40	0.81	9.79 ± 0.76	0.90	<0.001
Without AIRE score = 10	29	0.80	6.09 ± 0.57	0.89	<0.001

¹ Simple linear regression and Pearson correlation was computed, R² represents the coefficient of determination. ² Lactose challenge was performed using 50 g lactose in 250 mL of water. ³ Milk challenge was performed using 650 mL of milk.