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Table 5 Evening VAS predicted by the evening diary items as time varying covariates

From: Visual analogue scale (VAS) as a monitoring tool for daily changes in asthma symptoms in adolescents: a prospective study

  Model 1 Model 2
Standard Standard
Estimate SE p Estimate SE p
Effect
 Intercept 18.58 2.83 <0.001 −19.62 19.10 0.311
 Time −0.13 0.49 0.795 −0.08 0.52 0.874
 Activity limitation 0.11 0.89 0.904 0.21 0.93 0.821
 Shortness of breath 2.27 1.11 0.042 2.60 1.18 0.028
 Wheezing 2.27 1.20 0.060 2.11 1.24 0.089
 SABA use −0.45 1.67 0.786 −0.95 1.67 0.571
 Age     1.97 1.21 0.104
 Sex (1 = female)     9.00 3.81 0.019
 Race (1 = non-white)     3.41 3.83 0.375