Assessing the minimal clinically important difference and patient acceptable symptom state in visual analog scales and numerical rating scales in postoperative Thai patients

Status

Active, not recruiting

Phases

Phase 4

Study type

Observational

Source

TCTR

Registry ID

TCTR20201206001

Enrollment

100

Registered

2020-12-06

Start date

2020-12-14

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

minimal clinically important difference and patient acceptable symptom state visual analog scales numerical rating scales

Interventions

Inclusion criteria &#45

Age 18&#45

65 years &#45

Elective surgery case Exclusion criteria &#45

Patient refusal &#45

Patient who unable to communicate (both eyes blindness&#44

deaf) &#45

Substance abuse &#45

Patient with history of chronic pain &#45

Psychiatric problem &#45

Pregnancy &#45

Intellectual deficit &#45

Patient whom will be in ICU postoperative

Treatment

Inclusion subject

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Age 18-65 years old Elective IPD case

Exclusion criteria

Exclusion criteria: Patient refusal Patient who unable to communicate (both eyes blindness) Substance abuse Patient with history of chronic pain Psychiatric problem Pregnancy Intellectual deficit Patient whom will be in ICU postoperative

Design outcomes

Primary

Measure	Time frame
Minimal clinically important difference 24 hour Visual analog scale, numerical rating scale	—

Secondary

Measure	Time frame
PASS 24 hours VAS/NRS	—

Countries

Thailand

Contacts

Public ContactPiyakorn Ouypron

Srinagarind hospital, Khon kaen university

piyakorn.ouy@gmail.com0922656550

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026