| Weeda, 2016 |
United States |
2010/1–2012/12 |
Retrospective cohort |
UGIB |
119,353 |
Friday midnight to Sunday midnight |
9 |
| Ahmed, 2015 |
United Kingdom |
2000/1–2009/10 |
Retrospective cohort |
UGIB |
73,834 |
Saturday to Sunday |
7 |
| Al-Qahatani, 2015 |
Saudi Arabia |
2005/1–2013/7 |
Retrospective cohort |
Variceal bleeding |
937 |
Wednesday 16:00 to Friday midnight |
9 |
| Wu, 2014 |
Taiwan |
2009/1–2011/3 |
Retrospective cohort |
Peptic ulcer bleeding |
744 |
National holidays and Saturday to Sunday |
7 |
| Tufegdzic, 2014 |
Serbia |
2002/1–2012/1 |
Retrospective cohort |
UGIB |
493 |
Friday 15:00 to Monday morning 7:00 |
8 |
| Abougergi, 2014 |
United States |
2009 |
Retrospective cohort |
UGIB |
202,259 |
Saturday 12:00 to Sunday 23:59 |
9 |
| Youn, 2012 |
South Korea |
2007/1–2009/12 |
Retrospective cohort |
Peptic ulcer bleeding |
388 |
Friday midnight to Sunday mid-night |
8 |
| Byun, 2012 |
South Korea |
2005/1–2009/2 |
Retrospective cohort |
Variceal bleeding |
294 |
Friday midnight to Sunday midnight |
8 |
| Tsoi, 2012 |
Hong Kong |
1993–2005 |
Prospective cohort |
Peptic ulcer bleeding |
8,222 |
Sunday and public holidays |
8 |
| Haas, 2012 |
United States |
2008/1–2008/10 |
Retrospective cohort |
UGIB |
174 |
Friday 17:00 to Sunday midnight |
7 |
| Groot, 2012 |
Netherlands |
2009/10–2011/9 |
Prospective cohort |
UGIB |
571 |
Friday 23:00 to Monday 7:59 and official holidays |
8 |
| Button, 2011 |
United Kingdom |
1999–2007 |
Prospective cohort |
UGIB |
24,421 |
Saturday to Sunday and public holidays |
9 |
| Jairath, 2011 |
United Kingdom |
2007/5–2007/6 |
Prospective cohort |
UGIB |
6,749 |
Friday midnight to Sunday midnight |
9 |
| Dorn, 2010 |
United States |
1998–2003 |
Retrospective cohort |
UGIB |
98,975 |
Saturday 12:01 to Sunday 23:59 |
9 |
| Ananthakrishnan, 2009 |
United States |
2004 |
Retrospective cohort |
UGIB |
419,939 |
Friday midnight to Sunday midnight |
9 |
| Myers, 2009 |
United States |
1998–2005 |
Retrospective cohort |
Variceal bleeding |
36,734 |
Saturday to Sunday |
9 |
| Shaheen, 2009 |
United States |
1993–2005 |
Retrospective cohort |
Peptic ulcer bleeding |
237,412 |
Saturday to Sunday |
9 |
| Schmulewitz, 2005 |
United Kingdom |
2001 |
Retrospective cohort |
UGIB |
584 |
Friday midnight to Sunday midnight and holidays |
8 |
