Table 2:
Open in new tab

Joinpoint analysis of PO-AKI and S-PO-AKI.

PO-AKIS-PO-AKI
APC, %/year (95% CI)PAPC, %/year (95% CI)P
Total–4.2 (–5.5 to –2.8)<.0010.9 (–1.1 to 2.9).35
Surgical department
 General surgery–2.0 (–3.5 to –0.4).027.1 (–2.5 to 17.8).10
 OBGY–5.3 (–10.9 to 0.7).080.5 (–13.5 to 16.7).93
 Urologic surgery–2.7 (–7.7 to 2.5).30–5.2 (–16.2 to 7.2).26
  (i) 2004–2016–8.8 (–12.4 to –5.0)<.001
  (ii) 2016–202016.1 (–4.0 to 40.4).11
 Neurosurgery–11.6 (–21.3 to –0.7).040.0 (–10.9 to 12.3)1.00
  (i) 2004–2010–25.2 (–34.8 to –14.2)<.001
  (ii) 2010–201334.1 (–27.5 to 147.8).30
  (iii) 2013–2020–16.6 (–23.2 to –9.5)<.001
 Orthopedic surgery–6.8 (–9.8 to –3.7)<.001–4.5 (–11.7 to 3.3).16
PO-AKIS-PO-AKI
APC, %/year (95% CI)PAPC, %/year (95% CI)P
Total–4.2 (–5.5 to –2.8)<.0010.9 (–1.1 to 2.9).35
Surgical department
 General surgery–2.0 (–3.5 to –0.4).027.1 (–2.5 to 17.8).10
 OBGY–5.3 (–10.9 to 0.7).080.5 (–13.5 to 16.7).93
 Urologic surgery–2.7 (–7.7 to 2.5).30–5.2 (–16.2 to 7.2).26
  (i) 2004–2016–8.8 (–12.4 to –5.0)<.001
  (ii) 2016–202016.1 (–4.0 to 40.4).11
 Neurosurgery–11.6 (–21.3 to –0.7).040.0 (–10.9 to 12.3)1.00
  (i) 2004–2010–25.2 (–34.8 to –14.2)<.001
  (ii) 2010–201334.1 (–27.5 to 147.8).30
  (iii) 2013–2020–16.6 (–23.2 to –9.5)<.001
 Orthopedic surgery–6.8 (–9.8 to –3.7)<.001–4.5 (–11.7 to 3.3).16

In PO-AKI of urologic surgery and neurosurgery, AAPC was presented because of one or more joinpoints. Also, respective APC was calculated in each trend segment (i)–(iii).

In S-PO-AKI, joinpoint regression analysis was performed after stratification of the study population into 3-year intervals (2005–2007, 2008–2010, 2011–2013, 2014–2016 and 2017–2020) due to its relatively low occurrence in certain years on a yearly basis.

Table 2:
Open in new tab

Joinpoint analysis of PO-AKI and S-PO-AKI.

PO-AKIS-PO-AKI
APC, %/year (95% CI)PAPC, %/year (95% CI)P
Total–4.2 (–5.5 to –2.8)<.0010.9 (–1.1 to 2.9).35
Surgical department
 General surgery–2.0 (–3.5 to –0.4).027.1 (–2.5 to 17.8).10
 OBGY–5.3 (–10.9 to 0.7).080.5 (–13.5 to 16.7).93
 Urologic surgery–2.7 (–7.7 to 2.5).30–5.2 (–16.2 to 7.2).26
  (i) 2004–2016–8.8 (–12.4 to –5.0)<.001
  (ii) 2016–202016.1 (–4.0 to 40.4).11
 Neurosurgery–11.6 (–21.3 to –0.7).040.0 (–10.9 to 12.3)1.00
  (i) 2004–2010–25.2 (–34.8 to –14.2)<.001
  (ii) 2010–201334.1 (–27.5 to 147.8).30
  (iii) 2013–2020–16.6 (–23.2 to –9.5)<.001
 Orthopedic surgery–6.8 (–9.8 to –3.7)<.001–4.5 (–11.7 to 3.3).16
PO-AKIS-PO-AKI
APC, %/year (95% CI)PAPC, %/year (95% CI)P
Total–4.2 (–5.5 to –2.8)<.0010.9 (–1.1 to 2.9).35
Surgical department
 General surgery–2.0 (–3.5 to –0.4).027.1 (–2.5 to 17.8).10
 OBGY–5.3 (–10.9 to 0.7).080.5 (–13.5 to 16.7).93
 Urologic surgery–2.7 (–7.7 to 2.5).30–5.2 (–16.2 to 7.2).26
  (i) 2004–2016–8.8 (–12.4 to –5.0)<.001
  (ii) 2016–202016.1 (–4.0 to 40.4).11
 Neurosurgery–11.6 (–21.3 to –0.7).040.0 (–10.9 to 12.3)1.00
  (i) 2004–2010–25.2 (–34.8 to –14.2)<.001
  (ii) 2010–201334.1 (–27.5 to 147.8).30
  (iii) 2013–2020–16.6 (–23.2 to –9.5)<.001
 Orthopedic surgery–6.8 (–9.8 to –3.7)<.001–4.5 (–11.7 to 3.3).16

In PO-AKI of urologic surgery and neurosurgery, AAPC was presented because of one or more joinpoints. Also, respective APC was calculated in each trend segment (i)–(iii).

In S-PO-AKI, joinpoint regression analysis was performed after stratification of the study population into 3-year intervals (2005–2007, 2008–2010, 2011–2013, 2014–2016 and 2017–2020) due to its relatively low occurrence in certain years on a yearly basis.

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