Burke W J, Roccaforte W H, Wengel S P, Conley D M, Potter J F
Creighton-Nebraska Department of Psychiatry, University of Nebraska Medical Center, Omaha, USA.
J Am Geriatr Soc. 1995 Jun;43(6):674-9. doi: 10.1111/j.1532-5415.1995.tb07205.x.
To evaluate prospectively the reliability and validity of the Geriatric Depression Scale administered by telephone (T-GDS) in patients undergoing outpatient comprehensive geriatric assessment.
A total of 101 geriatric patients were evaluated in a 1-year period at the outpatient Geriatric Assessment Center of the University of Nebraska Medical Center.
The 30-item GDS was completed by all patients on three occasions: by telephone several days before their assessment, face-to-face during their assessment visit, and several days later, again by phone. During their assessment, all patients were evaluated by one of three geriatric psychiatrists who were blind to all GDS results. The test-retest reliability of the T-GDS was measured by comparing the results of the two phone interviews. The construct validity of the T-GDS was estimated by comparing the results of the initial T-GDS to the GDS obtained during the comprehensive assessment. The criterion validity of the T-GDS was estimated by comparing the results of the T-GDS with the clinical diagnosis of depression assigned by the psychiatrists.
The individual items of the initial T-GDS showed substantial concordance with the second T-GDS (kappa range 0.35-0.75, mean = 0.52), and with the assessment GDS (kappa range 0.29-0.75, mean = 0.52). One item showed evidence of bias when comparing the two T-GDSs, and two items when comparing the initial T-GDS to the GDS done during the assessment. The mean number of symptomatic responses was not significantly different for the T-GDS versus assessment administration but did decline slightly when comparing the two T-GDSs. ROC curve analyses showed good agreement between the clinical diagnosis and the T-GDS.
The GDS appears to maintain its reliability and validity when administered via telephone and thus may be useful for a variety of epidemiological and clinical purposes.
前瞻性评估电话版老年抑郁量表（T-GDS）在接受门诊综合老年评估患者中的可靠性和有效性。
在内布拉斯加大学医学中心门诊老年评估中心，1年期间共评估了101名老年患者。
所有患者分三次完成30项的老年抑郁量表：在评估前几天通过电话完成，评估就诊时面对面完成，几天后再次通过电话完成。在评估期间，所有患者由三位老年精神科医生之一进行评估，这些医生对所有老年抑郁量表结果均不知情。通过比较两次电话访谈结果来测量T-GDS的重测信度。通过比较初始T-GDS结果与综合评估期间获得的老年抑郁量表结果来估计T-GDS的结构效度。通过将T-GDS结果与精神科医生给出的抑郁症临床诊断结果进行比较来估计T-GDS的效标效度。
初始T-GDS的各个项目与第二次T-GDS显示出高度一致性（kappa值范围为0.35 - 0.75，平均值 = 0.52），与评估时的老年抑郁量表也显示出高度一致性（kappa值范围为0.29 - 0.75，平均值 = 0.52）。比较两次T-GDS时，有一项显示出偏差证据，比较初始T-GDS与评估时的老年抑郁量表时有两项显示出偏差证据。T-GDS与评估时量表的症状性反应平均数无显著差异，但比较两次T-GDS时略有下降。ROC曲线分析显示临床诊断与T-GDS之间有良好的一致性。
通过电话施用时，老年抑郁量表似乎保持了其可靠性和有效性，因此可能对各种流行病学和临床目的有用。
