Table 8.

Linear regression for independent predictors of total delay before registration among transferred out migrant patients with TB^a, China, 2014–15^b (N = 7262)^c

Variable	Β coefficient	95% CI	P value
Age group (in years)
< 15	−0.23	−0.65,0.20	0.300
15–44	−0.11	−0.20,-0.01	0.024^
45–64	0.03	−0.07,0.12	0.605
> =65	Ref	Ref	Ref
Gender
Male	Ref	Ref	Ref
Female	0.11	0.05,0.18	< 0.001^
Classification
PTB smear positive	0.21	0.09,0.33	0.001^
PTB smear negative	−0.02	−0.14,0.10	0.740
PTB smear status unknown	0.53	0.10,0.96	0.015^
Pleurisy	ref
EPTB	0.54	0.85,1.93	0.445
HIV
Positive	0.61	−0.19,1.41	0.134
Negative	Ref	Ref	Ref
Unknown	−0.04	−0.10,0.02	0.166
Registered at referral hospital
Yes	Ref	Ref	Ref
No	−0.07	−0.13,-0.003	0.038^

TB tuberculosis, PTB pulmonary tuberculosis, EPTB extrapulmonary tuberculosis, HIV human immunodeficiency virus

^aregistered in web-based TB information management system

^blogarithmic transformation of delay variable done as it was not normally distributed, model building was done by stepwise (forward method) method and the final model has been presented; occupation, permanent residence and treatment category, though considered, were excluded by the model (likelihood ratio test)

F stat for model = 9.1; Probability > F = < 0.001

^cof 7284, twenty two patient records were excluded because of missing information on dates to calculate delay

^{^}significant p-value < 0.05