Introduction: The aim of this study was to translate the Cardiac Depression Scale into the Slovenian language and test its validity and reliability on Slovenian patients with heart disease.
Methods: A total of 272 patients with heart disease who underwent elective coronary angiography at Celje General Hospital participated in this study. We used the Slovenian Cardiac Depression Scale (S-CDS), the Spielberger State Anxiety Inventory (STAI-S), and the Center for Epidemiologic Studies Depression Scale-20 (CES-D) to collect data. An exploratory and confirmatory factor analysis, internal consistency, test-retest reliability, and concurrent validity were performed.
Results: Cronbach's alpha for the total scale was 0.92 and the test-retest reliability was 0.71. Exploratory factor analysis confirmed six factors, accounting for 61% of the total variance. The confirmatory factor analysis indicated that a two- and one-factor solution had acceptable goodness-of-fit measures. However, we kept a more parsimonious one-factor method, given a high correlation between the two factors and the theoretical background in previous studies. Concurrent validation against the CES-D and the STAI-S showed moderate to strong correlations.
Conclusions: The S-CDS is a reliable and valid instrument for screening for depression in Slovenian patients with heart disease.
Namen: Namen raziskave je bil prevesti, validirati in prilagoditi slovenski prevod Lestvice depresivnosti za srčne bolnike (S-CDS) na vzorcu bolnikov z boleznijo srca.
Metode: 272 bolnikov z boleznijo srca, ki so bili vabljeni na elektivno invazivno kardiološko diagnostiko v Splošni bolnišnici Celje, je ustrezalo vključitvenim kriterijem. Uporabili smo S-CDS, Spielbergerjevo lestvico anksioznosti kot stanja (angl. The Spielberger State Anxiety Inventory, STAI-S) in lestvico depresivnosti (angl. The Center for Epidemiologic Studies Depression Scale-20, CES-D). Naredili smo eksploratorno in konfirmatorno faktorsko analizo, ocenili notranjo konsistentnost, časovno stabilnost in sočasno veljavnost.
Rezultati: S-CDS ima dobro notranjo konsistentnost (Cronbach alfa = 0,92) in časovno stabilnost (ICC = 0,71). Z eksploratorno faktorsko analizo smo potrdili šest faktorjev, s katerimi smo pojasnili 61 % celotne variabilnosti. Konfirmatorna faktorska analiza je potrdila dobro prileganje šestfaktorskega modela z eno in dvema dimenzijama, vendar smo se upoštevajoč visoke korelacije med faktorjema in teoretično utemeljene enofaktorske rešitve iz preteklih raziskav odločili za enofaktorsko strukturo. Sočasna veljavnost s CES-D in STAI-S je pokazala precejšnjo do močno povezanost.
Zaključek: S-CDS je zanesljiv in veljaven vprašalnik za merjenje depresivnosti slovenskih bolnikov z boleznijo srca. Potrebne bodo nadaljnje raziskave, ki bodo ocenile senzitivnost in specifičnost S-CDS.
Keywords: Cardiac Depression Scale; depression; heart disease; reliability; validity.
© 2023 National Institute of Public Health, Slovenia, published by Sciendo.