Table 2 Univariable and multivariable associations between absolute or relative thresholds and acute kidney injury (N=6296)
Duration | Total (n=6296) | AKI (n=431) | Unadjusted OR (95% CI) | Adjusted ORa (95% CI) | |
|---|---|---|---|---|---|
Absolute thresholds | |||||
<90 mmHg | 0 min | 222 | 14 (6.03%) | Ref. | Ref. |
1≤ <5 min | 274 | 16 (5.84%) | 0.92 (0.43 to 1.95) | 0.78 (0.34 to 1.77) | |
5≤ <20 min | 997 | 55 (5.52%) | 0.86 (0.48 to 1.63) | 0.80 (0.42 to 1.63) | |
20≤ | 4803 | 346 (7.21%) | 1.14 (0.68 to 2.07) | 0.80 (0.44 to 1.57) | |
Trend | 1.11 (0.97 to 1.30) | 0.96 (0.82 to 1.14) | |||
<85 mmHg | 0 min | 387 | 26 (6.72%) | Ref. | Ref. |
1≤ <5min | 489 | 27 (5.52%) | 0.81 (0.46 to 1.41) | 0.69 (0.37 to 1.28) | |
5≤ <20min | 1593 | 72 (4.52%) | 0.65 (0.41 to 1.05) | 0.60 (0.37 to 1.03) | |
20≤ | 3825 | 306 (8.00%) | 1.20 (0.80 to 1.86) | 0.86 (0.54 to 1.41) | |
Trend | 1.20 (1.06 to 1.36) | 1.05 (0.92 to 1.21) | |||
< 80 mmHg | 0 min | 668 | 39 (5.84%) | Ref. | Ref. |
1≤ <5 min | 908 | 46 (5.07%) | 0.86 (0.55 to 1.33) | 0.79 (0.49 to 1.27) | |
5≤ <20 min | 2169 | 121 (5.58%) | 0.95 (0.65 to 1.37) | 0.87 (0.58 to 1.33) | |
20≤ | 2551 | 225 (8.82%) | 1.55 (1.09 to 2.21) | 1.08 (0.74 to 1.63) | |
Trend | 1.24 (1.12 to 1.39) | 1.08 (1.03 to 1.22) | |||
<75 mmHg | 0 min | 1199 | 69 (5.75%) | Ref. | Ref. |
1≤ <5 min | 1415 | 67 (4.73%) | 0.81 (0.57 to 1.15) | 0.79 (0.54 to 1.15) | |
5≤ <20 min | 2480 | 160 (6.45%) | 1.12 (0.84 to 1.51) | 1.04 (0.76 to 1.45) | |
20≤ | 1202 | 135 (11.23%) | 2.07 (1.54 to 2.82) | 1.41 (1.00 to 2.00) | |
Trend | 1.32 (1.19 to 1.46) | 1.16 (1.04 to 1.30) | |||
< 70 mmHg | 0 min | 1980 | 114 (5.76%) | Ref. | Ref. |
1≤ <5 min | 2071 | 118 (5.70%) | 0.98 (0.75 to 1.28) | 0.90 (0.68 to 1.20) | |
5≤ <2 0min | 1881 | 152 (8.08%) | 1.43 (1.11 to 1.85) | 1.09 (0.82 to 1.44) | |
20≤ | 360 | 47 (12.91%) | 2.45 (1.71 to 3.52) | 1.60 (1.06 to 2.38) | |
Trend | 1.30 (1.17 to 1.44) | 1.12 (1.00 to 1.26) | |||
Relative thresholds | |||||
< 85% | 0 min | 58 | 3 (4.92%) | Ref. | Ref. |
1≤ <5 min | 113 | 7 (5.83%) | 1.19 (0.32 to 5.71) | 1.30 (0.27 to 9.55) | |
5≤ <20 min | 410 | 17 (3.98%) | 0.80 (0.25 to 3.50) | 0.98 (0.24 to 6.70) | |
20≤ | 5284 | 404 (7.10%) | 1.47 (0.54 to 6.07) | 1.72 (0.48 to 11.14) | |
Trend | 1.36 (1.06 to 1.83) | 1.32 (0.98 to 1.81) | |||
<80% | 0 min | 133 | 7 (5.26%) | Ref. | Ref. |
1≤ <5 min | 247 | 9 (3.64%) | 0.68 (0.24 to 1.94) | 0.68 (0.26 to 2.21) | |
5≤ <20 min | 664 | 38 (5.72%) | 1.09 (0.50 to 2.72) | 1.32 (0.54 to 3.74) | |
20≤ | 5252 | 377 (7.18%) | 1.39 (0.69 to 3.30) | 1.58 (0.70 to 4.31) | |
Trend | 1.28 (1.06 to 1.56) | 1.29 (1.05 to 1.59) | |||
< 75% | 0 min | 278 | 13 (4.68%) | Ref. | Ref. |
1≤ <5 min | 446 | 20 (4.48%) | 0.95 (0.47 to 2.00) | 0.94 (0.44 to 2.11) | |
5≤ <20 min | 1025 | 63 (6.15%) | 1.33 (0.74 to 2.56) | 1.44 (0.75 to 2.95) | |
20≤ | 4547 | 335 (7.37%) | 1.62 (0.95 to 3.00) | 1.74 (0.96 to 3.45) | |
Trend | 1.24 (1.08 to 1.43) | 1.25 (1.08 to 1.47) | |||
<70% | 0 min | 532 | 27 (5.08%) | Ref. | Ref. |
1≤ <5 min | 713 | 44 (6.17%) | 1.23 (0.75 to 2.03) | 1.14 (0.68 to 1.97) | |
5≤ <20 min | 1448 | 78 (5.39%) | 1.06 (0.68 to 1.69) | 1.09 (0.68 to 1.81) | |
20≤ | 3603 | 282 (7.83) | 1.58 (1.07 to 2.43) | 1.58 (1.03 to 2.52) | |
Trend | 1.61 (0.73 to 3.21) | 1.19 (1.06 to 1.35) | |||
<65% | 0 min | 988 | 57 (5.77%) | Ref. | Ref. |
1≤ <5 min | 1091 | 63 (5.77%) | 1.00 (0.69 to 1.45) | 0.99 (0.66 to 1.47) | |
5≤ <20 min | 1684 | 101 (6.00%) | 1.04 (0.74 to 1.46) | 1.08 (0.76 to 1.56) | |
20≤ | 2533 | 210 (8.29%) | 1.47 (1.09 to 2.01) | 1.49 (1.07 to 2.09) | |
Trend | 1.16 (1.06 to 1.28) | 1.16 (1.05 to 1.29) | |||