Table 4.

Logistic regressions on variables associated with the existence of a need for different types of modifications

Type of modifications	Floor modification	Corridor modification	Installing handrails	Appliance modification	Bath space modification
Exposure Variables	OR(95% CI)	OR(95% CI)	OR(95% CI)	OR(95% CI)	OR(95% CI)
Age	1.01(0.99–1.02)	1.01(0.99–1.02)	1.02(1.01–1.03) ***	1.01(0.99–1.03)	1.00(0.97–1.02)
Family Income	1.00(1.00–1.00)	1(1.00–1.00)	1.00(1.00–1.00)	1.00(1.00–1.00)	1.00(1.00–1.00)
Personal Income	1.00(1.00–1.00)	1(1.00–1.00)	1.00(1.00–1.00)	1.00(1.00–1.00)	1.00(1.00–1.00)
Address consistent with Hukou:
No(ref)	-	-	-	-	-
Yes	1.14(0.90–1.45)	1.21(0.85–1.73)	1.05(0.83–1.34)	1.14(0.76–1.71)	1.44(0.75–2.78)
Education:
None or less than primary (ref)	-	-	-	-	-
Primary	1.31(1.11–1.55)**	0.88(0.70–1.11)	1.25(1.06–1.49) **	1.46(1.10–1.93) **	0.79(0.53–1.16)
Middle school and higher	1.14(0.96–1.36)	0.89(0.70–1.14)	1.07(0.89–1.29)	1.37(1.01–1.86) *	0.87(0.57–1.32)
Building with an elevator
No(ref)	-	-	-	-	-
Yes	1.25(1.09–1.44)**	1.54(1.27–1.88) ***	1.21(1.04–1.40) **	1.02(0.80–1.29)	1.12(0.80–1.57)
Self-rated health condition
Poor (ref)	-	-	-	-	-
Good	0.79(0.68–0.92)**	0.70(0.55–0.88) **	0.80(0.68–0.94) **	0.85(0.65–1.11)	0.67(0.45–1.01)
Chronic disease
No(ref)	-	-	-	-	-
Yes	1.24(1.07–1.45)**	1.24(1.00-1.54)	1.32(1.13–1.55) **	1.17(0.90–1.52)	1.36(0.92-2.00)
Level of assistance
Independent (ref)	-	-	-	-	-
Low-level physically dependent	2.54(1.92–3.36)***	3.08(2.22–4.27) ***	3.16(2.39–4.18) ***	1.66(1.05–2.60) *	2.80(1.69–4.64) ***
Mid-level physically dependent	2.73(1.78–4.20)***	4.07(2.56–6.47) ***	2.63(1.71–4.01) ***	2.63(1.46–4.75) **	1.19(0.46–3.16)
Fully dependent	1.52(0.82–2.83)	3.43(1.80–6.55) ***	3.09(1.73–5.52) ***	0.52(0.13–2.25)	0.522(0.07–3.91)

IRR Incidence rate ratio, CI confidence interval

^*P < 0.05

^**P < 0.01

^***P < 0.001