Background
Methods
Eligibility criteria
Information sources and search strategy
Screening tools
Data items and quality assessment
Study | Random sample? | Unbiased sampling frame | Sample size? | Measures? | Unbiased assessors? | Response rate? | Confidence intervals? | Subject description? | Total |
---|---|---|---|---|---|---|---|---|---|
Black & Monrouxe, 2014 [39] | - | ✓ | - | ✓ | ✓ | - | - | ✓ | 4/8 |
El Ansari et al, 2014 [29] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 8/8 |
John & Alwyn, 2014 [41] | - | - | - | ✓ | ✓ | - | - | ✓ | 3/8 |
O’Brien et al, 2014 [24] | - | - | ✓ | ✓ | - | ✓ | ✓ | ✓ | 5/8 |
El ansari et al, 2013 [28] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 8/8 |
Partington et al, 2013 [25] | - | ✓ | - | ✓ | ✓ | - | - | ✓ | 4/8 |
De Visser & McDonnell, 2012 [40] | ✓ | ✓ | - | ✓ | ✓ | - | - | ✓ | 5/8 |
Gardner et al, 2012 [35] | - | - | - | ✓ | ✓ | - | - | - | 2/8 |
Gunby et al, 2012 [22] | ✓ | - | - | ✓ | ✓ | - | - | ✓ | 4/8 |
Sebena et al, 2012 [31] | - | - | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 6/8 |
Craigs et al, 2011 [45] | ✓ | ✓ | - | ✓ | ✓ | ✓ | - | ✓ | 6/8 |
El Ansari et al, 2011 [30] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 8/8 |
Heather et al, 2011 [23] | ✓ | ✓ | - | ✓ | ✓ | - | - | ✓ | 5/8 |
Beenstock et al, 2010 [20] | ✓ | - | - | ✓ | ✓ | ✓ | ✓ | ✓ | 6/8 |
Cahill & Byrne, 2010 [32] | ✓ | ✓ | - | ✓ | ✓ | ✓ | - | - | 5/8 |
Dodd et al, 2010 [33] | - | - | - | ✓ | ✓ | - | ✓ | ✓ | 4/8 |
El Ansari & Stock, 2010 [34] | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 8/8 |
Woolfson & Maguire, 2010 | ✓ | - | - | ✓ | ✓ | - | - | - | 3/8 |
Underwood et al, 2009 [47] | - | - | - | ✓ | ✓ | - | - | - | 2/8 |
O’Connor et al, 2008 [48] | ✓ | - | - | ✓ | ✓ | ✓ | - | - | 4/8 |
Gill et al, 2007 [36] | ✓ | - | - | ✓ | ✓ | - | - | ✓ | 4/8 |
Norman et al, 2007 [37] | - | - | - | ✓ | ✓ | - | - | - | 2/8 |
Barber & Fairclough, 2006 [60] | - | - | - | ✓ | ✓ | ✓ | - | ✓ | 4/8 |
Boland et al, 2006 [27] | - | - | - | ✓ | ✓ | ✓ | - | ✓ | 4/8 |
Faulkner et al, 2006 [21] | - | - | - | ✓ | - | - | - | - | 1/8 |
Watson et al, 2006 [43] | - | - | - | ✓ | ✓ | ✓ | - | ✓ | 4/8 |
McMillan & Conner, 2003 [42] | - | - | - | ✓ | ✓ | - | - | - | 2/8 |
Snow et al, 2003 [26] | - | - | - | ✓ | ✓ | - | - | - | 2/8 |
Newbury-Birch et al, 2002 [46] | - | - | - | ✓ | ✓ | ✓ | - | - | 3/8 |
Study | Year | Design | Graduate course | Period of course | Sample size/Response rate | Age | Sex | Screening tool | Prevalence |
---|---|---|---|---|---|---|---|---|---|
Black & Monrouxe, 2014 [39] | - | Method was dependent on each institution (e-mail, online notice board, and social media). Students informed others of the questionnaire (i.e. snowball sampling). | Medicine | All medical years included | 216 individuals responded/- | 17-25 | Men and Women | Weekly alcohol consumption. 15 units or more/week | 21.6 %/weekly |
El Ansari et al, 2014 [29] | 2007–2008 | Self-administered questionnaire were provided to students during the last 10 minutes of class time. | All degree programmes | First-third year | 3,220/80 % | Mean range: 22.2–31.6 | Men and Women | Frequency of HEDa/past week CAGE | 59.2 % - HEDa 22.4 % - problem drinking 8.8 % - alcohol dependence. |
John & Alwyn, 2014 [41] | - | Questionnaires were distributed and returned at formal teaching sessions | - | Undergraduate, first year student | 374 First year students | 18–22 | Men and Women | FAST/typical week | 85 % - Binge drinking occasions (8 units or more in one sitting)/typical week |
O’Brien et al, 2014 [24] | September 2010–February 2012 | Individuals were sampled at venues leased or owned by the university at events noted from webpage listings or competition schedules. | - | - | 2,048/83 % | Mean = 19.97 | Men and women | AUDIT | 84 % - hazardous drinkers |
El ansari et al, 2013 [28] | 2007–2008 | A self-completed questionnaire was distributed during the last 10 minute of lectures. | All degree programmes | First-third year | 3,706 students/80 % | 24.9 years | Men and women | CAGE | 67.2 % - HED 22.4 % - Problem drinking 8.8 % - alcohol dependence. |
Partington et al, 2013 [25] | March 08-March 09 | Cross-sectional study – questionnaire booklet distributed either at the start or end of lectures | Science or arts based programmes | First-third year | 770/- | Median – 22 | Men and women | AUDIT | 60.6 % - hazardous pattern of drinking: Hazardous – 40.1 % Harmful – 10.9 % Probable dependence – 9.6 % |
De Visser & McDonnell, 2012 [40] | - | An online questionnaire investigating various lifestyle and health-related beliefs and behaviours was sent to students inviting them to complete | Not specified | Not specified | 731/- | 18-25 years | Men and women | Units of alcohol consumed/past week | 47.5 % of women and 51.3 % of men noted exceeding their weekly unit guidelines/past week. |
Gardner et al, 2012 [35] | - | The questionnaire was posted online and sent to students for completion. Students were advised to forward the e-mail to other students. | Undergraduate students | All undergraduate years | 167/- | 18-35 years. Mean – 21.95 | Men and women | Binge drinking/past week | 56.2 % reported at least one binge drinking session/past week |
Gunby et al, 2012 [22] | 2008 –2009 | Students received an e-mail inviting them to participate in the research. In addition, posters inviting students to participate were also displayed on campus. | Undergraduate and postgraduate students | All years | 1,110/- | 18-24 years | Men and women | AUDIT | 71.2 % - hazardous alcohol consumption. |
Sebena et al, 2012 [31] | 2007 | Students received the questionnaire to complete during class time. | All first year courses | First year | 2,529/74 % | Not specified | Men and women | CAGE | Problem drinking: 22.1 % (CAGE score of 2 or more) |
Craigs et al, 2011 [45] | 2007/08 | Participants were asked to complete a questionnaire electronically | Undergraduate | All academic years included | 119/73 % | Mean age – 22.87 years | Men and women | Units of alcohol consumed/week | 32 % - hazardous drinkers/week |
El Ansari et al, 2011 [30] | 2007–2008 | A self-completed questionnaire was distributed during the last 10 minute of lectures. | Modules included: Social sciences, sport, sport development and exercise, health science | First-third year | 3,706/80 % | 24.9 years | Men and women | CAGE | 23.1 % - problem drinking |
Heather et al, 2011 [23] | 2008–2009 | Cross-sectional study – questionnaire booklet distributed either at the start or end of lectures. | Students registered to science based or arts based programmes. The five most popular subject areas were targeted. | First, second and third year | 770/- | Mean – 22.3 | Men and women | AUDIT | Positive AUDIT – 60.6 % Hazardous – 40.1 % Harmful – 10.9 % Probable dependence – 9.6 % |
Beenstock et al, 2010 [20] | 2008 | Questionnaires were distributed at select lecture theatres. Following this, questionnaires were posted on the students online learning system, BlackBoard. | Deans of undergraduate studies in the faculties of Humanities, Social Science and Agriculture & Engineering were asked to participate. | Questionnaires were distributed across all years of study. | 458/67 % | 20 years - median | Men and women | AUDIT | 82 % positive AUDIT. 39 % hazardous drinkers, 22 % harmful drinkers and 21 % may be alcohol dependent. |
Cahill & Byrne, 2010 [32] | 2008 | Students who attended the Student Health Department over two days in November 2008 were asked to complete an anonymous survey on alcohol and drug use. | Students from any faculty | Students from any year | 181/91.4 % | Over half <21 | Men and women | Units of alcohol consumed/week | 83.4 % - binge drinking in the previous 12 months. 44.8 % binge drink once weekly. |
Dodd et al, 2010 [33] | - | Convenience sampling was utilised with the selection recruited where time for data collection was given. | - | First -fourth year students from one UK university | 410/16 % | 22.8 years – mean age | Men and women | Binge drinking/past week | Binge drinking was reported by 65.4 % of men (5 or more units) and 52.6 % of women (4 or more units)/past week |
El Ansari & Stock, 2010 [34] | 2008–2009 | Two cross-sectional surveys were undertaken simultaneously using a universal sampling strategy (all students invited). Data was collected at selected modules at the end of teaching sessions. | Undergraduate students | All academic years included | 380 students: 195 male and 185 female | 22.86 years – Mean | Men and women | Binge drinking frequency/past month | 11.5 % - binge drinking 10 times or more in the last month; 15.8 % - binge drinking (5 or more drinks in a row) 6-9 times in past month. 26.5 % reported binge drinking 3-5 times in the past month. 12.9 % reported it 1 and 2 times. 20.4 % reported not binge drinking/previous month. |
Woolfson & Maguire, 2010 | 2007 | The university portal was used for student to opt-in and complete the questionnaire online over a 4 week period. | - | - | 62/96.9 % | 21 years – Mean age | Men and women | Binge Drinking (units)/monthly | 82.3 % reported partaking in binge drinking sessions (b)in the four week period of follow up. |
Underwood et al, 2009 [47] | 2008 | 2nd, 3rd and 4th year students completed the questionnaire before scheduled lectures. Absentees from class, 1st and 5th year students were contacted via internal mail. | Dental undergraduate students | First to fifth year dental students | 384/- | - | Men and women | Hazardous from units consumed (50 or more for men, 36 or more for women)/week. | In 2008, 1.7 % of males and 2.6 % of females reported hazardous alcohol consumption last week. 0 % of men and 2.7 % of women report hazardous alcohol consumption on an average week. |
O’Connor et al, 2008 [48] | 2003 | Questionnaires were distributed around the library and collected approximately 30 minutes later. The method was designed to capture a representative sample of the UCC student population. | Undergraduate and postgraduate students | All years included. | 115/100 % response rate | Undergraduates – 20.2 years Graduates – 44.2 years | Men and women | Units of alcohol consumed c/week | One third (32.1 %) of the UCC undergraduates were in the risky drinking category/week. |
Gill et al, 2007 [36] | - | Second year students were at informed about the study at the beginning of class and were asked to complete the questionnaire a week later in an adjacent classroom. | Undergraduate students | Second year undergraduate students registered to one university | 95 | 20.1 years (18.1–25.3) – mean age | Female only | Units of alcohol consumedc/past week | 70 % of individuals reported binge drinkingc one day within the previous 7 days |
Norman et al, 2007 [37] | Questionnaires were completed by a sample of undergraduate students at two time-points. Theory of planned behaviour and binge drinking questions were included. | Undergraduate students | Not specified | 94/84 % | 20.1 – Mean age | Men and women | Binge drinkingb/past week | 73.4 % - binge drinking/past week (T1) 62.0 % - binge drinking/past week (T2) | |
Barber & Fairclough, 2006 [60] | 2001 | Questionnaires were distributed to all dental students and selected law students during lectures and returned via an enclosed response box placed in the lobby area of each faculty. | Dental and Law undergraduate students | Each year | All dental students were selected. 180 law students/-Dental:83 %, Law: 71 % | Mean age: Dental students – 21.4 years, Law students – 20.4 years | Men and women | Alcohol use categorised to sensiblec
| 30 % of dental students and 40 % of Law students reported exceeding sensible levels of alcohol consumptionc/week |
Boland et al, 2006 [27] | 2002 | A researcher distributed the surveys to students in class, outlined the aims and objectives of the research and collected the completed surveys before departing. | Medical students | All undergraduate years of medicine | 537/63 % | 19–22 | Men and women | CAGE | 2002 – 52.5 % of medical students reported a positive CAGE score |
Faulkner et al, 2006 [21] | - | Students living in halls of residence in a campus university in South Wales were eligible for inclusion. Questionnaires were distributed to as many halls as could be accessed and collected two days later. | - | - | 282/47 % | Mean age – 20.2 years | Men and women | AUDIT | AUDIT scores in excess of 8 were reported by 85 % of males and 73 % of females. |
Watson et al, 2006 [43] | - | Questionnaires were distributed at the end of lectures. | Undergraduate nursing students | First year (pre-registration) nursing and midwifery students | 186/93 % | The majority of students were aged 17-30 | Men and women | Units of alcohol consumed de/week | 86.5 % reported having drunk alcohol on at least one occasion in the previous week. 74 % of students report drinking at levels above low risk drinking + ./week 54.7 % of students reported binge drinkinge/week |
McMillan & Conner, 2003 [42] | - | Respondents were recruited at lectures. | Undergraduate students | All years were eligible for inclusion in this study | A response rate of 62 % was noted. | 17-54 years | Men and women | Units of alcohol consumed c/week | 65.2 % of men and 40.7 % of women report exceeding ‘sensible’ levels/week 19.6 % of men and 1.2 % of women reported hazardous drinking/week |
Snow et al, 2003 [26] | - | Questionnaires were completed by a convenience sample of individuals who expressed interest in participating in focus groups. | Psychology, Law and Business | Undergraduate first year students | 300 questionnaires distributed 187 students - 62 % response rate | Mean age – 20.2 years | Men and women | AUDIT | 69.2 % of males and 62.8 % of females had a hazardous AUDIT score. |
Newbury-Birch et al, 2002 [46] | 1995 and 1998 | Second year students followed up in final year. Questionnaires were distributed in class or group meetings for completion. Attendance was monitored and absent students received the questionnaire in the post. | Undergraduate medical and dental students | Second and final year | 427/71-80 % | - | Men and women | Units of alcohol consumed c/week | 37.5 % of men and 9.7 % of women as second years were hazardous drinkers/week. As final years it was reported by 7.4 % of men and no women/week. |
Section/topic | # | Checklist item | ✓ |
---|---|---|---|
TITLE | |||
Title | 1 | Identify the report as a systematic review, meta-analysis, or both. | ✓ |
ABSTRACT | |||
Structured summary | 2 | Provide a structured summary including, as applicable: background; objectives; data sources; study eligibility criteria, participants, and interventions; study appraisal and synthesis methods; results; limitations; conclusions and implications of key findings; systematic review registration number. | ✓ |
INTRODUCTION | |||
Rationale | 3 | Describe the rationale for the review in the context of what is already known. | ✓ |
Objectives | 4 | Provide an explicit statement of questions being addressed with reference to participants, interventions, comparisons, outcomes, and study design (PICOS). | ✓ |
METHODS | |||
Protocol and registration | 5 | Indicate if a review protocol exists, if and where it can be accessed (e.g., Web address), and, if available, provide registration information including registration number. | - |
Eligibility criteria | 6 | Specify study characteristics (e.g., PICOS, length of follow-up) and report characteristics (e.g., years considered, language, publication status) used as criteria for eligibility, giving rationale. | ✓ |
Information sources | 7 | Describe all information sources (e.g., databases with dates of coverage, contact with study authors to identify additional studies) in the search and date last searched. | ✓ |
Search | 8 | Present full electronic search strategy for at least one database, including any limits used, such that it could be repeated. | ✓ |
Study selection | 9 | State the process for selecting studies (i.e., screening, eligibility, included in systematic review, and, if applicable, included in the meta-analysis). | ✓ |
Data collection process | 10 | Describe method of data extraction from reports (e.g., piloted forms, independently, in duplicate) and any processes for obtaining and confirming data from investigators. | ✓ |
Data items | 11 | List and define all variables for which data were sought (e.g., PICOS, funding sources) and any assumptions and simplifications made. | ✓ |
Risk of bias in individual studies | 12 | Describe methods used for assessing risk of bias of individual studies (including specification of whether this was done at the study or outcome level), and how this information is to be used in any data synthesis. | ✓ |
Summary measures | 13 | State the principal summary measures (e.g., risk ratio, difference in means). | ✓ |
Synthesis of results | 14 | Describe the methods of handling data and combining results of studies, if done, including measures of consistency (e.g., I2) for each meta-analysis. | ✓ |
Risk of bias across studies | 15 | Specify any assessment of risk of bias that may affect the cumulative evidence (e.g., publication bias, selective reporting within studies). | - |
Additional analyses | 16 | Describe methods of additional analyses (e.g., sensitivity or subgroup analyses, meta-regression), if done, indicating which were pre-specified. | - |
RESULTS | |||
Study selection | 17 | Give numbers of studies screened, assessed for eligibility, and included in the review, with reasons for exclusions at each stage, ideally with a flow diagram. | ✓ |
Study characteristics | 18 | For each study, present characteristics for which data were extracted (e.g., study size, PICOS, follow-up period) and provide the citations. | ✓ |
Risk of bias within studies | 19 | Present data on risk of bias of each study and, if available, any outcome level assessment (see item 12). | ✓ |
Results of individual studies | 20 | For all outcomes considered (benefits or harms), present, for each study: (a) simple summary data for each intervention group (b) effect estimates and confidence intervals, ideally with a forest plot. | ✓ |
Synthesis of results | 21 | Present results of each meta-analysis done, including confidence intervals and measures of consistency. | ✓ |
Risk of bias across studies | 22 | Present results of any assessment of risk of bias across studies (see Item 15). | - |
Additional analysis | 23 | Give results of additional analyses, if done (e.g., sensitivity or subgroup analyses, meta-regression [see Item 16]). | - |
DISCUSSION | |||
Summary of evidence | 24 | Summarize the main findings including the strength of evidence for each main outcome; consider their relevance to key groups (e.g., healthcare providers, users, and policy makers). | ✓ |
Limitations | 25 | Discuss limitations at study and outcome level (e.g., risk of bias), and at review-level (e.g., incomplete retrieval of identified research, reporting bias). | ✓ |
Conclusions | 26 | Provide a general interpretation of the results in the context of other evidence, and implications for future research. | ✓ |
FUNDING | |||
Funding | 27 | Describe sources of funding for the systematic review and other support (e.g., supply of data); role of funders for the systematic review. | - |