Geographical Inequality on Cataract Surgery Uptake in 200,000 Australians: Findings from the “45 and Up Study”
Table 1
Regional characteristics of cataract surgery incidence and correlative factors in 88 SA3s in the “45 and Up Study”.
Min
25th percentile
50th percentile
75th percentile
Max
Mean (SD)
Univariate
Bivariate
Spearman’s correlation
value
Moran’s I
value
Moran’s I
value
Characteristics of the 88 SA3 regions
Number of participants
508
1416
2423
3589
6925
2661.38 (1459.9)
Mean age (y)
58.90
60.98
62.50
63.80
65.40
62.41 (1.64)
Female (%)
47.74
52.91
54.35
55.34
58.23
54.01 (2.00)
Married (%)
54.15
72.06
76.15
77.95
84.94
74.96 (5.41)
10-year ICS (%)
5.33
7.34
8.69
10.06
15.62
8.85 (2.10)
0.45
0.001
Economic covariates
Socioeconomic, low IRSD (%)
0.26
3.21
18.45
32.47
61.27
20.46 (17.47)
0.45
0.001
−0.13#
0.009
−0.25#
0.02
−0.49^
0.001
−0.91^
<0.001
Private insurance with extras (%)
20.80
35.18
42.76
52.09
74.05
43.88 (11.88)
0.58
0.001
0.23#
0.001
0.25#
0.02
Min = the smallest value in 88 SA3 regions; Max = the largest value in 88 SA3 regions. IC=incidence of cataract surgery; IRSD = Index of Relative Socio-Economic Disadvantage. All with 5% confidence interval. #Correlation with 10-year incidence of cataract surgery. ^ Correlation with private insurance with extras.
