Evidence map›Paper›PMID 40442406›Full record

ArticleDiscover oncology2025

Pneumocystis jirovecii pneumonia in patients with lung cancer receiving immune checkpoint inhibitors: a retrospective nationwide population-based cohort study from South Korea.

Jiyun Jung, Seong Yeon Park, Hee Bum Jo, Jae Yoon Park, Dalyong Kim, Kyoungmin Lee, Sungim Choi

Abstract read
In one paragraph

Article in Discover oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jiyun JungDepartment of Biostatistics, Dongguk University College of Medicine, Goyang-si, Gyeonggi-do, Republic of Korea.
Seong Yeon ParkDivision of Infectious Diseases, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang-si, Gyeonggi-do, Republic of Korea.
Hee Bum JoDivision of Infectious Diseases, Department of Internal Medicine, Incheon Sejong Hospital, Incheon, Republic of Korea.
Jae Yoon ParkDivision of Nephrology, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang-si, Gyeonggi-do, Republic of Korea.
Dalyong KimDivision of Hematology and Medical Oncology, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang-si, Gyeonggi-do, Republic of Korea.
Kyoungmin LeeDivision of Hemato-Oncology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
Sungim ChoiDivision of Infectious Diseases, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang-si, Gyeonggi-do, Republic of Korea. drsichoi87@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study determined the incidence of Pneumocystis jirovecii pneumonia (PCP) in patients with lung cancer based on immune checkpoint inhibitor (ICI) exposure.

methodsNational claims data were obtained from 68,174 patients with lung cancer treated with ICIs or comparator non-ICIs (cytotoxic chemotherapy, targeted therapy, or both) between August 2017 and December 2021 in South Korea. The ICI exposure group included patients who were treated with ICIs at least once during the study period. The incidence and standardized incidence ratios were computed according to sex, 10-year age, and calendar-specific cancer population, to estimate the effects of ICIs and non-ICIs on the incidence of PCP. A logistic regression analysis was performed that adjusted for sex, age, comorbidities, and concomitant immunosuppressive drugs use.

resultsA total of 18,043 (26.4%) patients were in the ICI exposure group, and 50,131 (73.6%) were in the ICI non-exposure group. More than half of the patients in the ICI exposure group were men aged 60-79 years. Twenty-one PCP events occurred every 42,000.39 person-years in the ICI exposure group, and the incidence of PCP was lower than that in the ICI non-exposure group. Compared to the total cancer population, the incidence of PCP in patients with lung cancer was not significantly affected by ICI exposure, sex, or age. A 36% decreased risk of PCP with ICI exposure compared with non-exposure was estimated; however, this result was not statistically significant.

conclusionsThe incidence of PCP in patients with lung cancer treated with ICIs did not differ significantly from that in patients not treated with ICIs.

Indexed as

ChemotherapyImmune checkpoint inhibitorsImmunomodulationPneumocystis jirovecii Pneumonia

Identifiers

PMID40442406
PMCPMC12122411

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.