Catheter insertion statistics at a glance
Catheter insertion sits at the center of a lot of hospital care, but the numbers around it are blunt: usage is common, complications are measurable, and risk rises the longer a device stays in place. The statistics below show why the procedure deserves careful attention from the first insertion to the final removal.
Quick takeaways
- In U.S. hospitals, 15% to 25% of hospitalized patients receive urinary catheters during their stay (CDC Clinical Safety: Preventing CAUTIs).
- Each day an indwelling urinary catheter remains in place, CAUTI risk increases by 3% to 7% (CDC 2024 NHSN Patient Safety Manual).
- Acute care hospitals reported 62,700 UTIs in 2015 (CDC 2024 NHSN Patient Safety Manual).
- Up to 70% of inpatients require a catheter inserted into a peripheral vein or artery at some point during their hospital stay (WHO 2024 catheter-use guidance news release).
- Contemporary evidence reports pooled peripheral IV failure rates of 25% to 40% (Effectiveness and Safety of Different Dressing and Securement Methods for Peripheral Intravenous Catheters).
Table of contents
- Why catheter insertion statistics matter
- Urinary catheter use and infection burden
- Peripheral and central catheter insertion risk
- What the complication numbers suggest
- How to read the statistics carefully
Why catheter insertion statistics matter
Catheter insertion is not a niche event. It is part of everyday acute care, long-term care, and critical care workflows, which is why even modest complication rates become a major operational and patient-safety issue when multiplied across thousands of insertions (CDC CAUTI Background; WHO 2024 catheter-use guidance news release).
The main pattern in the data is simple: catheter use is widespread, and the risks are cumulative. That applies to urinary catheters, peripheral intravenous catheters, and central venous catheters alike. The exact complication profile changes by device type, but the statistical shape is consistent. More insertions mean more opportunities for infection, mechanical injury, malposition, phlebitis, or failure before therapy is complete (CDC 2024 NHSN Patient Safety Manual; Complications Related to Insertion and Use of Central Venous Catheters).
The broad scale of use
One of the strongest signals in the dataset is just how common catheter placement is in hospital care. CDC notes that 15% to 25% of hospitalized patients receive urinary catheters during their stay, and that approximately 12% to 16% of adult hospital inpatients will have an indwelling urinary catheter at some time during hospitalization (CDC Clinical Safety: Preventing CAUTIs; CDC 2024 NHSN Patient Safety Manual).
For vascular access, WHO estimated that up to 70% of all inpatients require a catheter inserted into a peripheral vein or artery at some point during their hospital stay (WHO 2024 catheter-use guidance news release). That is a wide baseline exposure. Even if the individual risk for one insertion is relatively low, the population-level burden rises quickly when the procedure is routine.
Urinary catheter use and infection burden
Urinary catheter statistics are the clearest example of how insertion decisions affect downstream infection rates. CDC reports that 75% of UTIs developed in hospitals are associated with a urinary catheter, and that virtually all healthcare-associated UTIs are caused by instrumentation of the urinary tract (CDC Clinical Safety: Preventing CAUTIs; CDC CAUTI Background).
That relationship shows up in several ways:
- More than 30% of infections reported by acute care hospitals are UTIs (CDC CAUTI Background).
- Acute care hospitals reported 62,700 UTIs in 2015 (CDC 2024 NHSN Patient Safety Manual).
- More than 13,000 deaths each year are associated with UTIs (CDC 2024 NHSN Patient Safety Manual).
Those numbers are not interchangeable, but together they show why urinary catheter insertion is treated as a major infection-prevention issue rather than a minor bedside routine.
Catheter duration matters
The most important operational point in the urinary catheter statistics is duration. CDC states that each day an indwelling urinary catheter remains in place, CAUTI risk increases by 3% to 7% (CDC 2024 NHSN Patient Safety Manual). That means the decision to keep a catheter in place is not neutral. Time itself is a risk factor.
In practical terms, the statistics favor two behaviors:
- Insert only when the clinical indication is strong.
- Remove the catheter as soon as it is no longer necessary.
That is not merely good practice in the abstract. It is directly reflected in the data. A catheter left in place longer than needed increases the exposure window for infection and makes the eventual outcome more likely to be counted in hospital infection surveillance.
Historical burden and prevalence
The older CDC background estimates also help frame the scale. U.S. national HAI estimates in 2002 put urinary tract infections at more than 560,000 infections, with attributable deaths over 13,000 and a UTI mortality rate of 2.3% (CDC CAUTI Background). Those figures are historical, but they underscore that catheter-associated infection has been a persistent system-level burden for decades.
CDC also reports that the prevalence of urinary catheter use in U.S. long-term care residents is about 5%, representing approximately 50,000 residents with catheters at any given time (CDC CAUTI Background). That is a smaller percentage than acute care use, but it is still a substantial exposed population, especially because long-term care settings often involve prolonged dwell time.
Urinary catheter indicators in one view
| Measure | Statistic | Source label |
|---|---|---|
| Hospitalized patients receiving urinary catheters | 15% to 25% | CDC Clinical Safety: Preventing CAUTIs |
| Adult inpatients with an indwelling urinary catheter at some time | 12% to 16% | CDC 2024 NHSN Patient Safety Manual |
| CAUTI risk increase per day of catheter use | 3% to 7% | CDC 2024 NHSN Patient Safety Manual |
| Acute care hospital UTIs reported in 2015 | 62,700 | CDC 2024 NHSN Patient Safety Manual |
| U.S. long-term care residents with urinary catheters | about 5% | CDC CAUTI Background |
| Residents represented by that prevalence | approximately 50,000 | CDC CAUTI Background |
Peripheral and central catheter insertion risk
Urinary catheters are only one part of the picture. The statistics for peripheral intravenous catheters and central venous catheters show that insertion-related risk is not limited to infection alone.
Peripheral IV insertion and failure
A mechanistic study states that more than one billion peripheral intravenous catheters are used each year worldwide, and that peripheral intravenous catheter insertion is the most common invasive medical procedure worldwide (The mechanistic causes of peripheral intravenous catheter failure based on a parametric computational study). That scale is huge, which means even moderate failure rates have enormous downstream consequences.
The same dataset reports that up to 50% of peripheral intravenous catheters fail before therapy is complete, while contemporary systematic review evidence reports pooled failure rates of 25% to 40% (The mechanistic causes of peripheral intravenous catheter failure based on a parametric computational study; Effectiveness and Safety of Different Dressing and Securement Methods for Peripheral Intravenous Catheters).
The review also notes that reported peripheral IV failure rates range from 21% to 69% across high- and low-income countries (Effectiveness and Safety of Different Dressing and Securement Methods for Peripheral Intravenous Catheters). That spread matters. It suggests that device failure is not just an unavoidable biological event; it also reflects context, technique, maintenance, and local practice patterns.
Central venous catheter insertion complications
Central venous catheter insertion has a different risk profile because the complications can be more immediately mechanical and more severe.
A multicenter review of central venous catheter insertions included 10,949 insertions and found 118 mechanical complications (Mechanical complications of central venous catheter insertions). Within those complications, 85 were bleedings, 21 were pneumothoraces, 7 were transient nerve injuries, and 5 were self-limiting arrhythmias (Mechanical complications of central venous catheter insertions).
Another prospective literature source cites complication rates of 7% to 20% for central venous cannulation in the ICU (Immediate complications of central venous cannulation in ICU). That range is broad, but it reinforces the idea that central access requires careful risk management.
Landmark versus ultrasound guidance
Several of the statistics point toward the importance of guidance method.
A study of temporary internal jugular dialysis catheters reported 220 catheters with a 100% success rate and only 7 mechanical complications among 171 procedures in a high-risk ultrasound-guided context (Pneumothorax as a complication of central venous catheter insertion). For normal-risk patients, pneumothorax incidence with subclavian cannulation is reported at 0.5% to 2%, compared with 0.8% to 2.4% in related landmark-technique comparisons (Ultrasound-guided internal jugular vein catheterization: a randomized controlled trial; Pneumothorax as a complication of central venous catheter insertion).
That does not mean ultrasound removes risk entirely. It does suggest that the insertion method can materially change the complication profile.
Central access indicators in one view
| Measure | Statistic | Source label |
|---|---|---|
| Central venous catheter insertions reviewed | 10,949 | Mechanical complications of central venous catheter insertions |
| Mechanical complications found | 118 | Mechanical complications of central venous catheter insertions |
| Bleedings among complications | 85 | Mechanical complications of central venous catheter insertions |
| Pneumothoraces among complications | 21 | Mechanical complications of central venous catheter insertions |
| Transient nerve injuries among complications | 7 | Mechanical complications of central venous catheter insertions |
| Self-limiting arrhythmias among complications | 5 | Mechanical complications of central venous catheter insertions |
| Central venous cannulation complication rates | 7% to 20% | Immediate complications of central venous cannulation in ICU |
What the complication numbers suggest
The statistics become more useful when they are read together rather than in isolation. Three patterns stand out.
1. Common procedures create large absolute burdens
A catheter insertion event can look routine at the bedside, but the absolute number of exposed patients is large. CDC estimates that 15% to 25% of hospitalized patients receive urinary catheters, while WHO states that up to 70% of inpatients may need some form of peripheral or arterial catheter insertion (CDC Clinical Safety: Preventing CAUTIs; WHO 2024 catheter-use guidance news release). That means even a relatively small failure or infection rate can translate into a significant case load.
2. Time in place is a risk multiplier
For urinary catheters, risk increases by 3% to 7% each day the catheter remains in place (CDC 2024 NHSN Patient Safety Manual). That daily increment makes catheter stewardship a statistical necessity, not just a clinical preference. The same principle applies more broadly to any catheter that can be removed or replaced sooner.
3. Technique and device choice influence outcomes
The difference between landmark-guided and ultrasound-guided insertion, the variation in peripheral IV failure rates, and the different complication profiles across catheter types all point to the same conclusion: insertion strategy matters (Pneumothorax as a complication of central venous catheter insertion; Effectiveness and Safety of Different Dressing and Securement Methods for Peripheral Intravenous Catheters; Effectiveness and Safety of Methods to Prevent Bloodstream and Other Infections and Noninfectious Complications Associated With PICCs).
A compact comparison of key device categories
| Device category | Main statistical signal | What the data implies |
|---|---|---|
| Urinary catheters | High association with hospital UTIs; risk rises daily | Minimize duration and document necessity |
| Peripheral IV catheters | Large global use; 25% to 40% pooled failure; up to 50% failure before therapy ends | Securement, monitoring, and early replacement matter |
| Central venous catheters | Mechanical complications and notable insertion risk | Operator technique and guidance method are critical |
| PICCs | 29% complication rate | Complication prevention remains a major issue |
PICC-specific evidence
The PICC statistics are especially useful because they combine scale and intervention data. One review reports a 29% complication rate for peripherally inserted central catheters and identifies 74 studies across 25 interventions (Effectiveness and Safety of Methods to Prevent Bloodstream and Other Infections and Noninfectious Complications Associated With PICCs).
Within that review, ultrasound-guided catheter insertion reduced phlebitis or thrombophlebitis in adults to 1.1% versus 5.7% with non-ultrasound insertion, with a risk ratio of 0.19 and 1,744 participants in the analysis (Effectiveness and Safety of Methods to Prevent Bloodstream and Other Infections and Noninfectious Complications Associated With PICCs).
By contrast, silicone catheters increased phlebitis or thrombophlebitis versus nonsilicone catheters with a risk ratio of 2.00, based on 1 randomized controlled trial and a 95% confidence interval of 1.26 to 3.17 (Effectiveness and Safety of Methods to Prevent Bloodstream and Other Infections and Noninfectious Complications Associated With PICCs).
Those are not headline-friendly numbers, but they are the kind of details that matter when selecting equipment or refining insertion protocols.
How to read the statistics carefully
Catheter insertion statistics can be misleading if they are taken too literally without context. A few guardrails help.
Separate exposure from outcome
Not every catheter insertion leads to a complication, and not every complication is caused by insertion alone. Some outcomes are linked to dwell time, maintenance, or patient condition. That is why it helps to distinguish between insertion complication rates, device failure rates, and infection burden over time.
Watch the denominator
A rate such as 3% to 7% daily risk increase, 29% complication rate, or 25% to 40% pooled peripheral IV failure rate only makes sense when you know what population it applies to (CDC 2024 NHSN Patient Safety Manual; Effectiveness and Safety of Methods to Prevent Bloodstream and Other Infections and Noninfectious Complications Associated With PICCs; Effectiveness and Safety of Different Dressing and Securement Methods for Peripheral Intravenous Catheters). Some numbers describe all hospitalized patients, while others describe patients who already received a specific device.
Treat source labels as part of the evidence
The source labels in the statistics matter because they signal whether a number comes from CDC background surveillance, a 2024 patient safety manual, WHO guidance, or a specific study or systematic review. That distinction is especially important when comparing older estimates such as the 2002 U.S. national HAI data with newer estimates from 2015 or 2024 (CDC CAUTI Background; CDC 2024 NHSN Patient Safety Manual).
Use the numbers for policy, not just curiosity
The clearest practical reading of the data is that catheter insertion should be treated as a controlled, monitored process. The evidence supports tighter insertion criteria, better guidance methods where relevant, ongoing review of necessity, and fast removal when a catheter is no longer needed. Those are not abstract recommendations; they are the most direct response to the risk patterns shown in the statistics.