How much time you really need
Two weeks is enough to finish a 3,000‑word systematic review, but you have to budget it wisely. Expect to invest about 27 hours of focused work spread over the fourteen days. That number includes searching databases, screening abstracts, extracting data, writing the narrative, and polishing Chicago footnotes. If you try to do the citation work by hand, you’ll add another 5–8 hours of repetitive tweaking and inevitable mistakes.
Break the project into bite‑size stages, and treat each stage as a mini‑deadline. When you finish a stage, you can move on without looking back at the previous work. This prevents the “I still have to fix my footnotes” feeling that creeps up late at night.
Stage‑by‑stage time plan
The table below shows what each phase involves and the realistic amount of time you should allocate. Adjust the days slightly if you have other coursework, but keep the total close to the estimates.
| Stage | What it involves | Realistic time |
|---|---|---|
| Database search & screening | Run search strings in PubMed, Embase, and Web of Science; export results; screen titles and abstracts against inclusion criteria. | 6 hours (Days 1‑3) |
| Full‑text retrieval & quality assessment | Obtain PDFs, read methods sections, score each study with a risk‑of‑bias tool, and record key variables in an extraction sheet. | 8 hours (Days 4‑7) |
| Writing the review | Draft methods, results, and discussion; weave the extracted data into a coherent narrative rather than a list of studies. | 10 hours (Days 8‑11) |
| Citation automation & formatting | Import the final library into a citation manager, select Chicago “Notes‑Bibliography,” generate footnotes, and run a quick bibliography check. | 3 hours (Days 12‑13) |
| Final proofreading | Read the whole manuscript, verify footnote numbers, ensure bibliography entries match footnotes, and fix any lingering typos. | 2 hours (Day 14) |
Why Chicago footnotes usually take longer
Most epidemiology students stumble over Chicago because they treat each citation as a separate task. The style demands two distinct elements for every source: a superscript or bracketed number in the text, a full footnote at the bottom of the page, and a bibliography entry that follows a slightly different order. When you copy an APA reference and try to re‑type it, you’ll often misplace commas, forget to italicize journal titles, or put the publication year in the wrong spot. Those small errors multiply quickly when you have 30‑40 sources.
Another hidden time‑suck is the need to keep footnote numbers synchronized with the manuscript. If you insert a new paragraph after you’ve already typed a few footnotes, you must renumber everything manually. That step alone can chew up an hour or more, especially if you’re working in a word processor that doesn’t automatically update footnote numbers.
Finally, the bibliography at the end of the paper follows a different ordering rule (alphabetical by author, not by appearance). Switching between the two formats without a tool forces you to maintain two parallel lists, which is a recipe for missing entries or duplicate entries.
Concrete student example
Consider a senior epidemiology major who started the review on a Monday. By the end of Day 3 they had exported 250 PubMed records and narrowed them down to 28 potentially relevant abstracts. Days 4‑7 were spent downloading PDFs and filling a Google Sheet with sample size, exposure definition, and outcome measure. On Day 8 they wrote a 1,200‑word methods section and a 600‑word results table, leaving 1,200 words for discussion.
On Day 11 the draft was complete, but the footnotes were still in APA. The student imported the 28 references into Zotero, chose the Chicago “Notes‑Bibliography” style, and let Zotero generate the footnotes in Word. After a quick run‑through, they spent 45 minutes fixing two entries where the author list exceeded ten names (Chicago requires “et al.” after the first seven). The final proofreading on Day 14 caught a missing page number in one footnote and a stray space before a period. The whole project took 26 hours, matching the estimate above.
“I thought I could just copy‑paste my APA list and edit it, but the footnote numbers kept jumping around. Using Zotero saved me at least three nights of frantic re‑numbering.” – a senior who submitted a systematic review last semester.
When the workload is genuinely heavy
If you find yourself with more than 40 sources, or if your inclusion criteria require a meta‑analysis with forest plots, the 27‑hour estimate will stretch. In that case, the citation workload is not the only bottleneck; data extraction alone can dominate your schedule. Acknowledge that you may need to ask the professor for a brief extension or negotiate a slightly reduced scope (e.g., limiting the review to studies from the last ten years). Trying to force a full‑scale review into the two‑week window without adjusting expectations will lead to burnout and sloppy formatting.
Minimum‑viable plan for a time‑crunched week
If you’re down to a single week because other assignments piled up, cut the process to its essentials while preserving academic integrity.
- Limit the literature search to two databases (PubMed and one discipline‑specific source). Use a single, well‑crafted search string instead of multiple variations.
- Screen only titles and abstracts; skip full‑text retrieval for borderline articles unless they appear crucial.
- Extract only the three variables that answer your primary research question (e.g., sample size, effect estimate, confidence interval).
- Write a concise 1,500‑word narrative that focuses on the overall trend rather than detailed subgroup analyses.
- Export the final reference list directly from Zotero or Mendeley in Chicago format; do a single pass to verify italics and punctuation.
What you cannot cut is the footnote‑to‑bibliography consistency check. Skipping that step will almost certainly result in a grade penalty, because professors in epidemiology often spot mismatched citations during grading.
Quick checklist to keep citations consistent
- Gather every source in a single citation manager (Zotero, Mendeley, or EndNote).
- Select the Chicago “Notes‑Bibliography” style before you start inserting footnotes.
- Insert footnotes directly from the manager; never type them manually.
- After the first full draft, run the manager’s “Refresh” command to update any changed references.
- Open the bibliography, sort alphabetically, and compare the first author of each entry with the corresponding footnote.
- Do a final scan for common pitfalls: missing page numbers, incorrect italics, and misplaced commas.