PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 3168669

Statistics for colon and rectal surgeons.

R K Reznick
View original source ↗Export metadata ↓

Abstract

To read the literature critically, it is important to understand the fundamental principles of statistical analysis. In a review of 190 articles of interest to colon and rectal surgeons, it was found that only 29 percent of articles contained no statistics at all. Twenty-four percent contained descriptive statistics (mean, median, standard, deviation) and 47 percent contained the use of formal statistical tests. In this article, several basic statistical concepts are reviewed. The three most frequently used tests in the colon and rectal literature, the t test, chi-square, and nonparametric tests, are described. An example of each test is given to illustrate how the test is used and how the results are interpreted.

Explore related subjects

Colorectal SurgeryResearch DesignJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

R K Reznick. 1988. Statistics for colon and rectal surgeons.. https://doi.org/10.1007/bf02560115

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2006

Modern management of rectal cancer: a 2006 update.

The goal of this review is to outline some of the important surgical issues surrounding the management of patients with early (T1/T2 and N0), as well as locally advanced (T3/T4 and/or N1) rectal cancer. Surgery for rectal cancer continues to develop towards the ultimate goals of improved local control and overall survival, maintaining quality of life, and preserving sphincter, genitourinary, and sexual function. Information concerning the depth of tumor penetration through the rectal wall, lymph node involvement, and presence of distant metastatic disease is of crucial importance when planning a curative rectal cancer resection. Preoperative staging is used to determine the indication for neoadjuvant therapy as well as the indication for local excision versus radical cancer resection. Local excision is likely to be curative in most patients with a primary tumor which is limited to the submucosa (T1N0M0), without high-risk features and in the absence of metastatic disease. In appropriate patients, minimally invasive procedures, such as local excision, TEM, and laparoscopic resection allow for improved patient comfort, shorter hospital stays, and earlier return to preoperative activity level. Once the tumor invades the muscularis propria (T2), radical rectal resection in acceptable operative candidates is recommended. In patients with transmural and/or node positive disease (T3/T4 and/or N1) with no distant metastases, preoperative chemoradiation followed by radical resection according to the principles of TME has become widely accepted. During the planning and conduct of a radical operation for a locally advanced rectal cancer, a number of surgical management issues are considered, including: (1) total mesorectal excision (TME); (2) autonomic nerve preservation (ANP); (3) circumferential resection margin (CRM); (4) distal resection margin; (5) sphincter preservation and options for restoration of bowel continuity; (6) laparoscopic approaches; and (7) postoperative quality of life.

Colorectal Surgery↗
PubMed2006

Prospective surveillance effectively reduced rates of surgical site infection associated with elective colorectal surgery at a university hospital in Japan.

At a university hospital in Japan, the introduction of prospective surveillance and subsequent interventions was effective in reducing the rate of surgical site infection associated with elective colorectal surgery from 27.5% to 17.8% of surgeries. Japan should both recognize the importance of broader surveillance for surgical site infection and establish its own nationwide surveillance database.

Colorectal Surgery↗