Table 4.

Linear regression for independent predictors of health system 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
Classification
PTB smear positive	−0.10	−0.21, 0.002	0.056
PTB smear negative	0.02	−0.08, 0.13	0.631
PTB smear status unknown	0.57	0.20, 0.95	0.003^
Pleurisy	Ref	Ref	Ref
EPTB	−0.82	−2.04,0.41	0.193
HIV
Positive	−0.04	−0.75, 0.67	0.911
Negative	Ref	Ref	Ref
Unknown	−0.40	−0.45, − 0.35	< 0.001^

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; age group, gender, occupation, permanent residence, treatment category and registration at referral hospital, though considered, were excluded by the model (likelihood ratio test)

F stat for model = 43.6; 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