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Table 4 Tobit regression analysis. Tobit regression model assessing differences in Ct-value distributions in non-acute samples collected at the start (R0) or end (RF) of the training period and acute samples collected from symptomatic individuals during follow-up. Acute samples are used as a reference

From: Association between semi-quantitative microbial load and respiratory symptoms among Thai military recruits: a prospective cohort study

Bacteria Sample type Coefficient 95%CI p-value
H. influenzae B R0 −2.22 −2.94; −1.49 < 0.001
RF 0.11 −0.80; 1.02 0.809
H. influenza non-B R0 5.56 4.05; 7.08 < 0.001
RF −2.95 −4.62; −1.27 0.001
S. pneumoniae R0 3.04 0.41; 5.67 0.024
RF −4.28 −7.00; −1.56 0.002
K. pneumoniae R0 0.52 −1.01; 2.05 0.506
RF 1.45 −0.55; 3.45 0.155
S. aureus R0 −0.98 −2.43; 0.47 0.186
RF −0.74 −2.47; 0.99 0.401
Viruses
 Rhinovirus R0 10.04 6.49; 13.58 < 0.001
RF 2.83 0.39; 5.27 0.023