Skip to main content

Table 2 Summary of critical appraisal of included studies using the newcastle-ottawa quality assessment scale for cohort studies

From: The impact of mental state altering medications on preventable falls after total hip or total knee arthroplasty: a systematic review and meta-analysis

Study ID

Selection

(max 4 stars)

Comparability

(max 2 stars)

Outcome

(max 3 stars)

Ardeljan (2021)

****

*

**

Hill, TKA (2021)

****

--

**

Hill, THA (2012)

****

--

**

Jörgensen (2013)

***

--

**

Levinger (2017)

****

--

**

  1. Selection
  2. 1) Representativeness of intervention cohort– (a) truly representative of average TKA/THA patient *; (b) somewhat representative of average TKA/THA patient*; (c) only selected group of patients; no description of derivation of cohort
  3. 2) Selection of non-intervention cohort—a) drawn from same community as intervention cohort*; b) drawn from different source; c) no description of the derivation of the non-intervention cohort
  4. 3) Ascertainment of intervention—a) health record*; b) structured interview*, c) written self-report; d) no description
  5. 4) Demonstration that outcome was not present of start of study—a) yes*; b) no
  6. Comparability
  7. 1) Comparability of cohorts on basis of design or analysis—a) study controls for age, sex or comorbidities*, b) study controls for any additional factors*
  8. Outcome
  9. 1) Assessment of outcome—a) independent blind assessment*; b) record linkage*; c) self-report; d) no description
  10. 2) Was follow up long enough for outcomes to occur—a) yes*; b) no
  11. 3) Adequacy of follow up cohort—a) complete follow up*; b) minimal loss to follow up (≤20%); c) follow up rate < 80% and no description of losses to follow up; d) no statement