Table 4 Adjusted odds ratios of incident CVC usage by distance to centre and length of pre-dialysis care (distance X length of pre-dialysis care interaction p < 0.0001)
From: The association between geographic proximity to a dialysis facility and use of dialysis catheters
Length of pre-dialysis care | Distance from dialysis centre (km) | %CVC (N) | OR (95% CI) with length of pre-dialysis care as separate strata | OR (95% CI) with common referent |
|---|---|---|---|---|
< 1Â year | <5 | 78.4 (941) | Referent | Referent |
5-20 (1) | 75.6 (1119) | 1.19 (0.95-1.48) | 0.84 (0.70-1.01) | |
>20 | 82.5 (1336) | 2.65 (2.05-3.44) | 1.27 (1.05-1.54) | |
1-3Â years | <5 | 68.6 (1071) | referent | 0.58 (0.49-0.70) |
5-20 | 70.2 (1393) | 1.24 (1.05-1.46) | 0.63 (0.53-0.75) | |
>20 | 75.2 (1522) | 2.52 (2.09-3.04) | 0.82 (0.69-0.98) | |
> 3 | <5 | 64.5 (949) | Referent | 0.48 (0.40-0.57) |
5-20 | 63.8 (1182) | 1.21 (1.03-1.41) | 0.47 (0.40-0.56) | |
>20 | 72 (1376) | 2.31 (1.93-2.75) | 0.71 (0.60-0.84) |