Author

Takashi Hajiro

Observed names: Hajiro, Takashi, T Hajiro, T. HAJIRO, T. Hajiro, TAKASHI HAJIRO, Takashi HAJIRO

Observed institutions: Shiga University of Medical Science, St George's, University of London, Kyoto University, Tenri Hospital, Kobe City Nishi-Kobe Medical Center, Kyoto Katsura Hospital, Kobe City Medical Center General Hospital, Hikone Municipal Hospital, Nagahama Red Cross Hospital

ORCID: 0009-0009-6902-4872

Observed ORCID: 0009-0009-6902-4872

OpenAlex ID: A5036383307

Analysis of the Factors Related to Mortality in Chronic Obstructive Pulmonary Disease: Role of Exercise Capacity and Health Status

2003 · Toru Oga, Koichi Nishimura, et al. · American Journal of Respiratory and Critical Care Medicine · 595

Comparison of Discriminative Properties among Disease-specific Questionnaires for Measuring Health-related Quality of Life in Patients with Chronic Obstructive Pulmonary Disease

1998 · TAKASHI HAJIRO, KOICHI NISHIMURA, et al. · American Journal of Respiratory and Critical Care Medicine · 265

Analysis of Clinical Methods Used to Evaluate Dyspnea in Patients with Chronic Obstructive Pulmonary Disease

1998 · TAKASHI HAJIRO, KOICHI NISHIMURA, et al. · American Journal of Respiratory and Critical Care Medicine · 257

PDF

A Comparison of the Level of Dyspnea vs Disease Severity in Indicating the Health-Related Quality of Life of Patients With COPD

1999 · Takashi Hajiro, Koichi Nishimura, et al. · CHEST Journal · 221

The Effects of Oxitropium Bromide on Exercise Performance in Patients with Stable Chronic Obstructive Pulmonary Disease: A Comparison of Three Different Exercise Tests

2000 · TORU OGA, KOICHI NISHIMURA, et al. · American Journal of Respiratory and Critical Care Medicine · 179

Longitudinal deteriorations in patient reported outcomes in patients with COPD

2006 · Toru Oga, Koichi Nishimura, et al. · Respiratory Medicine · 126

Stages of disease severity and factors that affect the health status of patients with chronic obstructive pulmonary disease

2000 · T. HAJIRO, K. NISHIMURA, et al. · Respiratory Medicine · 123

Exercise Capacity Deterioration in Patients With COPD

2005 · Toru Oga, Koichi Nishimura, et al. · CHEST Journal · 110

A Novel, Short, and Simple Questionnaire to Measure Health-related Quality of Life in Patients with Chronic Obstructive Pulmonary Disease

1999 · TAKASHI HAJIRO, KOICHI NISHIMURA, et al. · American Journal of Respiratory and Critical Care Medicine · 110

Optimal Cutoff Level of Breath Carbon Monoxide for Assessing Smoking Status in Patients With Asthma and COPD *

2003 · Susumu Sato, Koichi Nishimura, et al. · CHEST Journal · 86

PDF

Analysis of longitudinal changes in dyspnea of patients with chronic obstructive pulmonary disease: an observational study

2012 · Toru Oga, Mitsuhiro Tsukino, et al. · Respiratory Research · 55

Comparison of the Responsiveness of Different Disease-Specific Health Status Measures in Patients with Asthma

2002 · Toru Oga, Koichi Nishimura, et al. · CHEST Journal · 54

Relationship between different indices of exercise capacity and clinical measures in patients with chronic obstructive pulmonary disease

2002 · Toru Oga, Koichi Nishimura, et al. · Heart & Lung · 54

Minimal clinically significant difference in health status: the thorny path of health status measures?

2002 · T. Hajiro, K. Nishimura · European Respiratory Journal · 47

PDF

Effects of theophylline and ipratropium bromide on exercise performance in patients with stable chronic obstructive pulmonary disease

1998 · M. Tsukino, K. Nishimura, et al. · Thorax · 45

PDF

Dyspnoea with activities of daily living versus peak dyspnoea during exercise in male patients with COPD

2005 · Toru Oga, Koichi Nishimura, et al. · Respiratory Medicine · 37

PDF

The Effect of High-Dose Inhaled Beclomethasone Dipropionate in Patients With Stable COPD

1999 · Koichi Nishimura, Hiroshi Koyama, et al. · CHEST Journal · 37

2004 · Koichi Nishimura, Takashi Hajiro, et al. · Journal of Asthma · 35

A Comparison of the Effects of Salbutamol and Ipratropium Bromide on Exercise Endurance in Patients With COPDa

2003 · Toru Oga, Koichi Nishimura, et al. · CHEST Journal · 35

Longitudinal Changes in Health Status Using the Chronic Respiratory Disease Questionnaire and Pulmonary Function in Patients with Stable Chronic Obstructive Pulmonary Disease

2004 · T. Oga, K. Nishimura, et al. · Quality of Life Research · 34

A comparison of the responsiveness of different generic health status measures in patients with asthma

2003 · Toru Oga, Koichi Nishimura, et al. · Quality of Life Research · 33

Prediction of forced vital capacity with dynamic chest radiography in interstitial lung disease

2021 · Masakuni Ueyama, Seishu Hashimoto, et al. · European Journal of Radiology · 29

Health status measured with the CRQ does not predict mortality in COPD

2002 · T. Oga, K. Nishimura, et al. · European Respiratory Journal · 29

PDF

Analysis of longitudinal changes in the psychological status of patients with asthma

2007 · Toru Oga, Koichi Nishimura, et al. · Respiratory Medicine · 28

PDF

Comparison of the Bronchodilator Effects of Salbutamol Delivered via a Metered-Dose Inhaler with Spacer, a Dry-Powder Inhaler, and a Jet Nebulizer in Patients with Chronic Obstructive Pulmonary Disease

1999 · Akihiko Ikeda, Koichi Nishimura, et al. · Respiration · 27

Works count: 111

Citation count: 2,995

H-index: 26

I10-index: 41