Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile
Purpose The Kun–Qi birth cohort (KQBC) was established to investigate the incidence, aetiology and risk factors of chronic kidney disease (CKD) in early childhood (0–6 years). Additionally, the study analysed developmental phenotypic trajectories and their associated paediatric diseases.Participants...
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2025-08-01
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| Online Access: | https://bmjopen.bmj.com/content/15/8/e102702.full |
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| author | Yan Ma Xingdong Chen Jie Wei Li Guo Jian Huang Li Xie Lei Chen Ping Lu Wei Sun Wei Shi Feng Ding Liping Zhang Yue Zhang Linlin Zhang Rui Song Yi Huang Jun Shen Hong Xu Zhigang Chen Qian Shen Ying Ma Yiwen Zhang Hongxia Li Yihui Zhai Biao Xu Xian Zhou Jun Sun Bing Wu Rui Su Xiaoyan Yu Jianhong Zhu Yihong Huang Ling Gong Nana Wu Jingjing Sun Tianyi Liu He Yuan Yiwen Shen Jiaojiao Liu Xia Han Juanjuan Wu Yinghua Sun Suxiang Xu Qinyi Zhang Na Xie Jianfeng Ji Weizhi Mo Yuanxin Liu Xinghua Shi Wanshan Qiu Jiapeng Mi Juhua Yan Minghui Zhu Pei Feng Wenqian Sheng Mingqin Tai Chunqin Zhou Qian Jin Chengyu Gu Xiujuan Huang Qinfang Qian Yixin Cao Haochen Shen Ziwen Xue Yucui Ma Juan Tian Yingdan Zhang Weiyuan Zhuang Kaiqun Yang Xiaohui Shen Yanwei Gu Beibei Shi Chenhong Pan Hongmei Zhou Xiuchen Zhang Meihua Tang Kaixuan Gu Hongping Liu Yuanxian Li |
| author_facet | Yan Ma Xingdong Chen Jie Wei Li Guo Jian Huang Li Xie Lei Chen Ping Lu Wei Sun Wei Shi Feng Ding Liping Zhang Yue Zhang Linlin Zhang Rui Song Yi Huang Jun Shen Hong Xu Zhigang Chen Qian Shen Ying Ma Yiwen Zhang Hongxia Li Yihui Zhai Biao Xu Xian Zhou Jun Sun Bing Wu Rui Su Xiaoyan Yu Jianhong Zhu Yihong Huang Ling Gong Nana Wu Jingjing Sun Tianyi Liu He Yuan Yiwen Shen Jiaojiao Liu Xia Han Juanjuan Wu Yinghua Sun Suxiang Xu Qinyi Zhang Na Xie Jianfeng Ji Weizhi Mo Yuanxin Liu Xinghua Shi Wanshan Qiu Jiapeng Mi Juhua Yan Minghui Zhu Pei Feng Wenqian Sheng Mingqin Tai Chunqin Zhou Qian Jin Chengyu Gu Xiujuan Huang Qinfang Qian Yixin Cao Haochen Shen Ziwen Xue Yucui Ma Juan Tian Yingdan Zhang Weiyuan Zhuang Kaiqun Yang Xiaohui Shen Yanwei Gu Beibei Shi Chenhong Pan Hongmei Zhou Xiuchen Zhang Meihua Tang Kaixuan Gu Hongping Liu Yuanxian Li |
| collection | DOAJ |
| description | Purpose The Kun–Qi birth cohort (KQBC) was established to investigate the incidence, aetiology and risk factors of chronic kidney disease (CKD) in early childhood (0–6 years). Additionally, the study analysed developmental phenotypic trajectories and their associated paediatric diseases.Participants Infants registered or residing in Kunshan and Qidong, Jiangsu Province, who participated in the Chinese Child Healthcare Programme (0–6 years) were enrolled. The baseline population was stratified into enhanced and basic cohorts. General characteristics, periconceptional and perinatal information and health check-up data were collected from each participant. Dual screening (urinary ultrasound and urine dipstick tests) was conducted during scheduled check-ups. Structured CKD questionnaires were administered, and biosamples (urine and dried blood spots) were obtained for the long-term storage and analysis using standard procedures. Based on the proposed referral procedure, participants with abnormal results were referred for further diagnosis and evaluation.Findings to date The KQBC enrolled 10 127 infants (5392 boys and 4735 girls) with a mean age of 2.11±1.68 months. Urinary system ultrasound and urine dipstick screening showed positivity rates of 8.9% (900/10 083) and 6.5% (532/8233), respectively. Baseline ultrasound screening facilitated timely surgical intervention in six children. Among the 7965 respondents, only 13% demonstrated awareness of paediatric CKD. Additionally, 7273 dried blood spots and 7990 urine specimens were collected and stored. A paediatric CKD screening platform was developed.Future plans According to our plan, the KQBC will be followed up for 3–6 years to investigate the incidence, aetiology and risk factors of early onset CKD. In-depth developmental phenotypes, such as urinary multiomics and ultrasound imaging, should be studied for longitudinal paediatric kidney health. We aim to develop multimodal risk prediction models by integrating genomics and artificial intelligence algorithms. The KQBC also enables prospective cohort studies addressing extensive research questions.Trial registration number NCT06018831. |
| format | Article |
| id | doaj-art-a1e96433f3c844b599fdbfbc8e04fa3f |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-a1e96433f3c844b599fdbfbc8e04fa3f2025-08-20T03:42:18ZengBMJ Publishing GroupBMJ Open2044-60552025-08-0115810.1136/bmjopen-2025-102702Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile 0Yan MaXingdong Chen1Jie WeiLi GuoJian Huang2Li Xie3Lei ChenPing LuWei SunWei ShiFeng DingLiping ZhangYue ZhangLinlin Zhang4Rui SongYi HuangJun Shen5Hong Xu6Zhigang ChenQian Shen7Ying MaYiwen ZhangHongxia LiYihui Zhai8Biao Xu9Xian ZhouJun SunBing WuRui SuXiaoyan YuJianhong ZhuYihong HuangLing GongNana WuJingjing SunTianyi Liu10He YuanYiwen Shen11Jiaojiao Liu12Xia Han13Juanjuan Wu14Yinghua Sun15Suxiang Xu16Qinyi Zhang17Na Xie18Jianfeng Ji19Weizhi Mo20Yuanxin Liu21Xinghua Shi22Wanshan Qiu23Jiapeng MiJuhua YanMinghui ZhuPei FengWenqian ShengMingqin TaiChunqin ZhouQian JinChengyu GuXiujuan HuangQinfang QianYixin CaoHaochen ShenZiwen XueYucui MaJuan TianYingdan ZhangWeiyuan ZhuangKaiqun YangXiaohui ShenYanwei GuBeibei ShiChenhong PanHongmei ZhouXiuchen ZhangMeihua TangKaixuan GuHongping LiuYuanxian LiDepartments of Urology and Radiology, Radboud University Medical Center, Nijmegen, Gelderland, The NetherlandsState Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaClinical Research Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, ChinaChildren’s Hospital of Fudan University at Qidong, Qidong Women’s and Children’s Health Hospital, Qidong, ChinaChildren’s Hospital of Fudan University at Qidong, Qidong Women’s and Children’s Health Hospital, Qidong, ChinaDepartment of Nephrology, Children’s Hospital of Fudan University, Shanghai, ChinaShanghai Kidney Development and Paediatric Kidney Disease Research Center, Shanghai, ChinaDepartment of Nephrology, Children’s Hospital of Fudan University, Shanghai, ChinaDepartment of Epidemiology, School of Public Health, Fudan University, Shanghai, ChinaDepartment of Nephrology, Children’s Hospital of Fudan University, Shanghai, ChinaDepartment of Nephrology, Children’s Hospital of Fudan University, Shanghai, ChinaDepartment of Nephrology, Children’s Hospital of Fudan University, Shanghai, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaChildren’s Hospital of Fudan University at Qidong, Qidong Women’s and Children’s Health Hospital, Qidong, ChinaDepartment of Ultrasonography, Children’s Hospital of Fudan University, Shanghai, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaChildren’s Hospital of Fudan University at Kunshan, Kunshan Women’s and Children’s Health Hospital, Kunshan, ChinaDepartment of Ultrasonography, Children’s Hospital of Fudan University, Shanghai, ChinaChildren’s Hospital of Fudan University at Qidong, Qidong Women’s and Children’s Health Hospital, Qidong, ChinaChildren’s Hospital of Fudan University at Qidong, Qidong Women’s and Children’s Health Hospital, Qidong, ChinaPurpose The Kun–Qi birth cohort (KQBC) was established to investigate the incidence, aetiology and risk factors of chronic kidney disease (CKD) in early childhood (0–6 years). Additionally, the study analysed developmental phenotypic trajectories and their associated paediatric diseases.Participants Infants registered or residing in Kunshan and Qidong, Jiangsu Province, who participated in the Chinese Child Healthcare Programme (0–6 years) were enrolled. The baseline population was stratified into enhanced and basic cohorts. General characteristics, periconceptional and perinatal information and health check-up data were collected from each participant. Dual screening (urinary ultrasound and urine dipstick tests) was conducted during scheduled check-ups. Structured CKD questionnaires were administered, and biosamples (urine and dried blood spots) were obtained for the long-term storage and analysis using standard procedures. Based on the proposed referral procedure, participants with abnormal results were referred for further diagnosis and evaluation.Findings to date The KQBC enrolled 10 127 infants (5392 boys and 4735 girls) with a mean age of 2.11±1.68 months. Urinary system ultrasound and urine dipstick screening showed positivity rates of 8.9% (900/10 083) and 6.5% (532/8233), respectively. Baseline ultrasound screening facilitated timely surgical intervention in six children. Among the 7965 respondents, only 13% demonstrated awareness of paediatric CKD. Additionally, 7273 dried blood spots and 7990 urine specimens were collected and stored. A paediatric CKD screening platform was developed.Future plans According to our plan, the KQBC will be followed up for 3–6 years to investigate the incidence, aetiology and risk factors of early onset CKD. In-depth developmental phenotypes, such as urinary multiomics and ultrasound imaging, should be studied for longitudinal paediatric kidney health. We aim to develop multimodal risk prediction models by integrating genomics and artificial intelligence algorithms. The KQBC also enables prospective cohort studies addressing extensive research questions.Trial registration number NCT06018831.https://bmjopen.bmj.com/content/15/8/e102702.full |
| spellingShingle | Yan Ma Xingdong Chen Jie Wei Li Guo Jian Huang Li Xie Lei Chen Ping Lu Wei Sun Wei Shi Feng Ding Liping Zhang Yue Zhang Linlin Zhang Rui Song Yi Huang Jun Shen Hong Xu Zhigang Chen Qian Shen Ying Ma Yiwen Zhang Hongxia Li Yihui Zhai Biao Xu Xian Zhou Jun Sun Bing Wu Rui Su Xiaoyan Yu Jianhong Zhu Yihong Huang Ling Gong Nana Wu Jingjing Sun Tianyi Liu He Yuan Yiwen Shen Jiaojiao Liu Xia Han Juanjuan Wu Yinghua Sun Suxiang Xu Qinyi Zhang Na Xie Jianfeng Ji Weizhi Mo Yuanxin Liu Xinghua Shi Wanshan Qiu Jiapeng Mi Juhua Yan Minghui Zhu Pei Feng Wenqian Sheng Mingqin Tai Chunqin Zhou Qian Jin Chengyu Gu Xiujuan Huang Qinfang Qian Yixin Cao Haochen Shen Ziwen Xue Yucui Ma Juan Tian Yingdan Zhang Weiyuan Zhuang Kaiqun Yang Xiaohui Shen Yanwei Gu Beibei Shi Chenhong Pan Hongmei Zhou Xiuchen Zhang Meihua Tang Kaixuan Gu Hongping Liu Yuanxian Li Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile BMJ Open |
| title | Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile |
| title_full | Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile |
| title_fullStr | Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile |
| title_full_unstemmed | Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile |
| title_short | Kun–Qi birth cohort (KQBC) study for the incidence, aetiology and risk factors of chronic kidney disease in Chinese children: a cohort profile |
| title_sort | kun qi birth cohort kqbc study for the incidence aetiology and risk factors of chronic kidney disease in chinese children a cohort profile |
| url | https://bmjopen.bmj.com/content/15/8/e102702.full |
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