Table 6. Effects of block group spatial accessibility to mammography service and socioeconomic (SES) deprivation on risk of late-stage breast cancer.

	Odds Ratio (95% CI)*
	Model I	Model II	Model III
CSTa	0.97 (0.84 to 1.11)	0.97 (0.85 to 1.11)	0.99 (0.86 to 1.14)
SES	-	-	1.19 (1.00 to 1.42)
CST5b	0.92 (0.80 to 1.05)	0.93 (0.81 to 1.07)	0.95 (0.83 to 1.09)
SES	-	-	1.18 (0.99 to 1.41)
DENc	0.89 (0.77 to 1.02)	0.90 (0.78 to 1.03)	0.90 (0.79 to 1.04)
SES	-	-	1.19 (1.00 to 1.42)
SAUd	1.23 (1.07 to 1.41)	1.15 (1.00 to 1.33)	1.12 (0.96 to 1.30)
SES	-	-	1.15 (0.96 to 1.38)
SACe	1.16 (1.01 to 1.33)	1.12 (0.98 to 1.28)	1.11 (0.97 to 1.27)
SES	-	-	1.18 (0.99 to 1.41)
SA3Qf	1.13 (0.99 to 1.30)	1.09 (0.96 to 1.25)	1.09 (0.95 to 1.25)
SES	-	-	1.19 (1.00 to 1.42)
SA3Sg	1.14 (1.00 to 1.31)	1.10 (0.96 to 1.26)	1.08 (0.95 to 1.24)
SES	-	–	1.18 (0.99 to 1.41)
SA6Qh	1.19 (1.04 to 1.36)	1.16 (1.01 to 1.32)	1.15 (1.01 to 1.32)
SES	-	-	1.19 (1.00 to 1.42)
SA6Si	1.26 (1.10 to 1.45)	1.21 (1.05 to 1.39)	1.19 (1.03 to 1.37)
SES	-	-	1.15 (0.96 to 1.37)
SES	1.31 (1.13 to 1.51)	1.19 (1.00 to 1.42)	-

Model I was adjusted for age only; Model II was adjusted for age and race; Model III included spatial accessibility score, socioeconomic score, age and race.

^*Higher spatial accessibility and less deprivation were set as references;

^a: shortest travel time (minutes);

^b: average travel time to the nearest five facilities (minutes);

^c: service density;

^d: spatial accessibility index from the model without weighting parameter;

^e: spatial accessibility index from the model with continuous weighting parameter;

^f: spatial accessibility index from the zonal weighted model with 3 time zones and quick decay weighting;

^g: spatial accessibility index from the zonal weighted model with 3 time zones and slow decay weighting;

^h: spatial accessibility index from the zonal weighted model with 6 time zones and quick decay weighting;

ⁱ: spatial accessibility index from the zonal weighted model with 6 time zones and slow decay weighting.