Surgical Endoscopy

, 25:2932 | Cite as

Laparoscopic appendectomy for acute appendicitis is more favorable for patients with comorbidities, the elderly, and those with complicated appendicitis: a nationwide population-based study

  • Chun-Chieh Yeh
  • Shih-Chi Wu
  • Chien-Chang Liao
  • Li-Ting Su
  • Chi-Hsun Hsieh
  • Tsai-Chung LiEmail author



Laparoscopic appendectomy (LA) is not routinely performed for appendicitis because the costs associated with that procedure are higher than those for open appendectomy (OA). However, few studies have investigated the economic influence of LA and OA on specific subpopulations including the elderly, patients with comorbidities, and patients with complicated appendicitis. This population-based study was designed to investigate determinants of costs and hospital length of stay (LOS) for patients undergoing appendectomy. Furthermore, the differences in costs and LOS were compared between LA and OA for various subpopulations.


Inpatients who underwent LA or OA for appendicitis during the period 2001–2008 were identified from claims data obtained from Taiwan’s National Health Insurance program. Costs and LOS were evaluated by multiple linear regression models for various subpopulations stratified according to age, number of comorbidities, and severity of appendicitis.


Between 2001 and 2008, 22,252 patients (13.3%) underwent LA and 14,4438 (86.7%) had OA. Age, comorbidity, and severity of appendicitis were determinants of costs and LOS for both LA and OA. Although the costs and LOS for appendectomy increased with age and number of comorbidities, a sharper increase was noted for OA patients. Laparoscopic appendectomy mildly decreased LOS at the expense of significantly higher costs for young patients, those without comorbidities, and patients with uncomplicated appendicitis. In contrast, compared with OA, LA was associated with comparable costs and reduced LOS for the elderly, patients with comorbidities, and those with complicated appendicitis. In addition, hospital mortality and readmission rates for postoperative complications did not differ significantly between LA and OA.


Considering costs and LOS, patients older than 65 years, patients with comorbidities, and patients with complicated appendicitis benefit more from the laparoscopic approach for the treatment of appendicitis.


Comorbidity Complicated appendicitis Cost Elderly Laparoscopic appendectomy Length of stay 



This study was supported by the National Sciences Council, Executive Yuan (grant numbers NSC 99-2621-M-039-001), China Medical University Hospital (grant number 1MS1), Taiwan Department of Health Clinical Trial and Research Center for Excellence (grant number DOH100-TD-B-111-004) and Taiwan Department of Health Cancer Research Center of Excellence (DOH100-TD-C-111-005).


Chun-Chieh Yeh, Shih-Chi Wu, Chien-Chang Liao, Li-Ting Su, Chi-Hsun Hsieh, and Tsai-Chung Li have no conflicts of interest or financial ties to disclose.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Chun-Chieh Yeh
    • 1
    • 2
  • Shih-Chi Wu
    • 3
  • Chien-Chang Liao
    • 4
    • 5
    • 6
  • Li-Ting Su
    • 4
    • 6
  • Chi-Hsun Hsieh
    • 3
  • Tsai-Chung Li
    • 7
    • 8
    • 9
    • 10
    • 11
    Email author
  1. 1.Trauma and Emergency Center, China Medical University HospitalTaichung 404Taiwan
  2. 2.Graduate Institute of Clinical Medical ScienceChina Medical UniversityTaichung 404Taiwan
  3. 3.Trauma and Emergency Center, China Medical University HospitalChina Medical UniversityTaichung 404Taiwan
  4. 4.Management Office for Health DataChina Medical University HospitalTaichung 404Taiwan
  5. 5.Department of AnesthesiologyTaipei Medical University HospitalTaipei 110Taiwan
  6. 6.Institute of Environmental Health, College of Public HealthChina Medical UniversityTaichung 404Taiwan
  7. 7.Graduate Institute of Biostatistics, College of Public HealthChina Medical UniversityTaichung 404Taiwan
  8. 8.Graduate Institute of Chinese Medicine Science, College of Chinese MedicineChina Medical UniversityTaichung 404Taiwan
  9. 9.Biostatistics CenterChina Medical UniversityTaichung 404Taiwan
  10. 10.Department of Medical ResearchChina Medical University HospitalTaichung 404Taiwan
  11. 11.Institute of Health Care Administration, College of Health ScienceAsia UniversityTaichung 404Taiwan

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