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. 2023 May 18;18(5):e0285904. doi: 10.1371/journal.pone.0285904

Table 1. Diabetes eye care service use and predictors of being unable to access diabetes eye care services in New Zealand, 2006–2019.

Summary of diabetes eye care service use Predictors of being unable to access care
Population Subgroup Total Attended DRS only Attended DRS and ophthalmology Attended ophthalmology only Attended DRS but not ophthalmology when referred Never attended DRS or ophthalmology Never attended DRS or ophthalmology Attended DRS but not ophthalmology when referred
n (col%) n (row%) n (row%) n (row%) n (row%) n (row%) Relative Risk (95% CI) p-value Relative Risk (95% CI) p-value
Total 245844(100.0) 125821(51.2) 78300(31.8) 35883(14.6) 2039(0.8) 3801(1.5)
Sex
Female 116292(47.3) 56515(48.6) 38269(32.9) 18809(16.2) 966(0.8) 1733(1.5) Ref Ref
Male 129550(52.7) 69304(53.5) 40031(30.9) 17074(13.2) 1073(0.8) 2068(1.6) 1.16(1.08, 1.23) <0.0001 1.04(0.95, 1.13) 0.3933
Not specified 2(0.0) 2(100.0) 0(0.0) 0(0.0) 0(0.0) 0(0.0)
Age (years)
15–29 15938(6.5) 10440(65.5) 2950(18.5) 1664(10.4) 188(1.2) 696(4.4) 3.85(3.46, 4.28) <0.0001 1.31(1.11, 1.55) 0.0017
30–39 27579(11.2) 18761(68.0) 5658(20.5) 2100(7.6) 334(1.2) 726(2.6) 2.28(2.05, 2.54) <0.0001 1.34(1.17, 1.54) <0.0001
40–49 48526(19.7) 31000(63.9) 12093(24.9) 4149(8.6) 453(0.9) 831(1.7) 1.53(1.38, 1.69) <0.0001 1.06(0.94, 1.21) 0.3406
50–59 58721(23.9) 31880(54.3) 18911(32.2) 6821(11.6) 491(0.8) 618(1.1) Ref Ref
60–69 51980(21.1) 21176(40.7) 21262(40.9) 8815(17.0) 326(0.6) 401(0.8) 0.78(0.69, 0.88) 0.0001 0.79(0.68, 0.90) <0.0001
70–79 32976(13.4) 9855(29.9) 14251(43.2) 8349(25.3) 185(0.6) 336(1.0) 1.09(0.96, 1.25) 0.1920 0.73(0.62, 0.87) <0.0001
80+ 10124(4.1) 2709(26.8) 3175(31.4) 3985(39.4) 62(0.6) 193(1.9) 2.18(1.85, 2.57) <0.0001 0.84(0.64, 1.09) 0.1913
Ethnicity
NZ European 132907(54.1) 66029(49.7) 43184(32.5) 21347(16.1) 869(0.7) 1478(1.1) Ref Ref
Māori 35176(14.3) 19027(54.1) 10676(30.4) 3743(10.6) 620(1.8) 1110(3.2) 2.12(1.95, 2.31) <0.0001 1.98(1.77, 2.22) <0.0001
Pacific 35216(14.3) 17314(49.2) 11708(33.2) 5060(14.4) 366(1.0) 768(2.2) 1.41(1.28, 1.55) <0.0001 1.11(0.98, 1.27) 0.1115
Asian 36795(15.0) 20367(55.4) 11153(30.3) 4802(13.1) 148(0.4) 325(0.9) 0.67(0.59, 0.76) <0.0001 0.55(0.46, 0.65) <0.0001
Others 5750(2.3) 3084(53.6) 1579(27.5) 931(16.2) 36(0.6) 120(2.1) 1.58(1.31, 1.90) <0.0001 0.84(0.60, 1.18) 0.3149
Area level deprivation (quintiles)
1 Least deprived 32960(13.4) 18594(56.4) 9232(28.0) 4650(14.1) 164(0.5) 320(1.0) Ref Ref
2 38658(15.7) 20440(52.9) 11930(30.9) 5696(14.7) 185(0.5) 407(1.1) 1.06(0.92, 1.23) 0.4020 0.96(0.78, 1.18) 0.6764
3 44848(18.2) 22552(50.3) 14812(33.0) 6694(14.9) 258(0.6) 532(1.2) 1.14(1.00, 1.31) 0.0580 1.09(0.90, 1.33) 0.3895
4 55212(22.5) 27455(49.7) 17940(32.5) 8366(15.2) 519(0.9) 932(1.7) 1.50(1.32, 1.70) <0.0001 1.68(1.41, 2.01) <0.0001
5 Most deprived 73767(30.0) 36598(49.6) 24292(32.9) 10377(14.1) 911(1.2) 1589(2.2) 1.55(1.36, 1.75) <0.0001 1.87(1.57, 2.23) <0.0001
Missing 399(0.2) 182(45.6) 94(23.6) 100(25.1) 2(0.5) 21(5.3)

DRS: diabetes retinal screening

†had at least one event attended or booked

‡ Log binomial regression to test for an association with i) never attending retinal screening or ophthalmology and ii) attending retinal screening but not ophthalmology when referred, adjusting for all other variables in the table