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)
| 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 |
|---|---|---|---|---|
| < 1 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) |
|
| 1-3 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) |
Models adjusted for race, era, sex, age, BMI, albumin, hemoglobin, co-morbidities, region, cause of ESRD.