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Table 2 Factor loading and communalities (both initial and extracted) from EFA for one factor solution, eigenvalue and extracted % of variance, KMO and reliability analysis (Cronbach’s α)

From: Psychometric qualities of the HLS-EU-Q16 instrument for parental health literacy in Swedish multicultural settings

Items Factor loadings Communalities
initial extracted
j) How easy/difficult is it for you to understand why you need health screenings (such as breast examinations, blood sugar or blood pressure tests)? Disease prevention .779 .640 .607
g) How easy/difficult is it for you to follow instructions from your doctor or pharmacist? Health care .708 .572 .501
d) How easy/difficult is it for you to understand your doctor’s or pharmacist’s instructions on how to take a prescribed medicine? Health care .703 .588 .494
i) How easy/difficult is it for you to understand warnings about behaviours (e.g., smoking, low physical activity and drinking too much)? Disease prevention .701 .502 .492
b) How easy/difficult is it for you to find out where to get professional help when you are ill (e.g., doctor, pharmacist, or psychologist)? Health care .697 .606 .486
o) How easy/difficult is it for you to understand information in the media on how to get heathier (e.g., from the internet, daily or weekly magazines? Health promotion .694 .524 .482
m) How easy/difficult is it for you to find out about activities that are good for your mental well-being (e.g., meditation, exercise, and walking)? Health promotion .667 .465 .445
c) How easy/difficult is it for you to understand what your doctor says to you? Health care .664 .492 .440
f) How easy/difficult is it for you to use the information your doctor gives you to make decisions about your illness? Health care .655 .542 .429
a) How easy/difficult is it for you to find information about treating illnesses that concern you? Health care .615 .464 .378
p) How easy/difficult is it for you to judge what every day behaviours are related to your health (e.g., eating habits, exercise habits and drinking habits)? Health promotion .512 .349 .262
h) How easy/difficult is it for you to find information on how to manage mental health problems such as stress and depression? Disease prevention .496 .316 .246
l) How easy/difficult is it for you to decide how you can protect yourself from illness based on information in the media (e.g., newspapers, leaflets, and the Internet)? Disease prevention .481 .528 .232
e) How easy/difficult is it for you to judge when you need to get a second opinion from another doctor? Health care .460 .339 .211
k) How easy/difficult is it for you to judge whether the information on health risks in the media is reliable (e.g., TV or the Internet)? Disease prevention .424 .447 .179
n) How easy/difficult is it for you to understand advice on health from your family members or friends? Health promotion .401 .351 .160
Eigenvalue (extracted) 6.044
Extracted % of variance 37.774
Kaiser-Meyer-Olkin Measure of Sampling Adequacy .892
Cronbach’s α .900