Clinical Research Fellow.
Adjunct Professor, Department of Physical and Rehabilitation Medicine, Turku University Hospital and University of Turku, Turku, Finland.
Aesthet Surg J. 2019 Jul 12;39(8):837-840. doi: 10.1093/asj/sjz070.
The minimal clinically important difference (MCID) for the Standardized Cosmesis and Health Nasal Outcomes Survey (SCHNOS) has not been determined.
The authors sought to define the MCID for both domains of the SCHNOS questionnaire.
This prospective cohort study included patients who underwent functional, cosmetic, or combined rhinoplasty operation from June 2017 to June 2018 at a tertiary referral center. The average preoperative, postoperative, and change in scores were calculated for the nasal obstruction symptom evaluation scale (NOSE) and SCHNOS. Anchor-based MCIDs were estimated for both SCHNOS subscales to define change in obstruction and cosmesis perceived after the rhinoplasty.
Eighty-seven patients (69% women, 31% males) with a mean age (standard deviation [SD]) of 38 years (14.7) at the time of surgery were included. The mean postoperative follow-up period (SD) was 145 days (117). The mean preoperative score (SD) for the NOSE was 52 (32), SCHNOS for nasal obstruction (SCHNOS-O) score was 55 (33), and SCHNOS for nasal cosmesis (SCHNOS-C) score was 50 (26) points. Postoperatively, the NOSE score was 23 (22), SCHNOS-O score was 24 (23), and SCHNOS-C score was 13 (18) points. The mean change in scores (SD) for NOSE, SCHNOS-O, and SCHNOS-C was -29 (37), -31 (38), and -37 (28), respectively. The calculated MCID for SCHNOS-O was 26 (16) and for SCHNOS-C was 22 (15) points. The MCID for NOSE was 24 (13) points. A sensitivity test for the patients with a follow-up ≥3 months showed only slightly different MCID estimates: 28 (17) for SCHNOS-O, 18 (13) for SCHNOS-C, and 24 (15) points for NOSE.
For the obstruction domain SCHNOS-O, the MCID was 28 points. For the cosmetic domain SCHNOS-C, the MCID was 18 points.
尚未确定标准化美容和健康鼻结果调查（SCHNOS）的最小临床重要差异（MCID）。
作者旨在确定 SCHNOS 问卷的两个领域的 MCID。
这项前瞻性队列研究纳入了 2017 年 6 月至 2018 年 6 月在三级转诊中心接受功能性、美容或联合鼻整形手术的患者。计算了鼻阻塞症状评估量表（NOSE）和 SCHNOS 的平均术前、术后和变化评分。基于锚定的 MCID 分别估计了 SCHNOS 子量表，以定义鼻整形术后感知到的阻塞和美容变化。
共纳入 87 例患者（69%女性，31%男性），手术时平均年龄（标准差）为 38 岁（14.7）。平均术后随访期（标准差）为 145 天（117）。NOSE 的平均术前评分（标准差）为 52（32），SCHNOS 鼻阻塞评分（SCHNOS-O）为 55（33），SCHNOS 鼻美容评分（SCHNOS-C）为 50（26）分。术后，NOSE 评分为 23（22），SCHNOS-O 评分为 24（23），SCHNOS-C 评分为 13（18）分。NOSE、SCHNOS-O 和 SCHNOS-C 的评分变化平均值（标准差）分别为-29（37）、-31（38）和-37（28）。SCHNOS-O 的计算 MCID 为 26（16），SCHNOS-C 的 MCID 为 22（15）分。NOSE 的 MCID 为 24（13）点。对随访时间≥3 个月的患者进行敏感性测试，仅显示出略有不同的 MCID 估计值：SCHNOS-O 为 28（17），SCHNOS-C 为 18（13），NOSE 为 24（15）点。
对于阻塞域 SCHNOS-O，MCID 为 28 分。对于美容域 SCHNOS-C，MCID 为 18 分。
