Table 4. Cox regression model to compare the effect of three models among migrant workers.

	RR*	95% CI	P
On-site session Model#	1	—	—
Two-stage Model#	1.486	0.924-2.388	0.102
Three-stage Model#	2.021	1.303-3.134	0.002

Note: * Cox-regression analyses were conducted to compare different kinds of interventions, and adjusting for demographic (age, ethnicity, marital status and education) and migration characteristics (original residence), estimated RR (relative risk) with 95% CI (confidence interval). ^# The baseline time was defined as the start point. The end point was either MC surgery uptake or the end of the second follow-up session, whichever came first.