Turkish validity and reliability of the lifestyle questionnaire related to cancer

Öner, Neslihan; Borlu, Arda; Seyfeli, Mevlüde Yasemin Akşehirli; Tekin, Tuba

doi:10.1590/1806-9282.20221292

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Revista da Associação Médica Brasileira

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Original Article • Rev. Assoc. Med. Bras. 69 (2) • 2023 • https://doi.org/10.1590/1806-9282.20221292 copy

Turkish validity and reliability of the lifestyle questionnaire related to cancer

Authorship SCIMAGO INSTITUTIONS RANKINGS

SUMMARY

OBJECTIVE:

The aim of this study was to adapt the lifestyle questionnaire related to cancer in Turkish and investigate its validity and reliability.

METHODS:

This methodological study was conducted on 1,196 participants. Cronbach's α was used to assess validity and reliability. The internal consistency was evaluated using item-total correlation.

RESULTS:

The normed chi-square in this study was 5.87. The root mean square error of approximation was calculated as 0.051. The comparative fit index and the Tucker-Lewis Index were 0.83 and 0.81, respectively. The split-half method was used to test the reliability of the scale (Part 1 Cronbach's α: 0.826, Part 2 Cronbach's α: 0.812, and Adjusted Cronbach's α: 0.881).

CONCLUSION:

The Turkish version of lifestyle questionnaire related to cancer (8 subscales, 41 items) is a reliable and valid measure to evaluate lifestyle behaviors related to cancer in adults.

KEYWORDS:
Adult; Behavior; Health; Life style; Primary health care

Characteristics		Values
Age ( $\bar{X}$ ± SS)		31.17±12.08 years
Gender, n (%)
	Male	340 (28.4)
	Female	856 (71.6)
Education, n (%)
	Illiterate	28 (2.3)
	Primary education	219 (18.3)
	High school	525 (43.9)
	Graduate	363 (30.4)
	Postgraduate	61 (5.1)
Employment status, n (%)
	Employed	361 (30.2)
	Unemployed	834 (69.7)
Accommodation, n (%)
	Urban	1,130 (94.5)
	Rural	66 (5.5)
Marital status, n (%)
	Married	546 (45.6)
	Single	612 (51.2)
	Divorced	15 (1.3)
	Widow	23 (1.9)
LQ-RC score ( $\bar{X}$ ± SS)		65.63±15.74

Items	F1	F2	F3	F4	F5	F6	F7	F8
1	0.185	0.164	0.300	0.581	0.121	-0.025	-0.015	0.090
2	0.089	0.074	0.726	0.108	0.148	0.087	-0.057	-0.009
3	0.047	0.075	0.742	0.089	0.027	0.143	0.101	-0.082
5	0.063	0.117	0.758	0.021	0.092	0.082	0.110	0.080
6	0.003	0.255	0.360	-0.024	-0.013	0.269	0.022	0.206
7	0.085	0.259	0.536	0.051	0.109	0.134	-0.126	0.361
8	0.193	0.158	0.255	0.683	0.062	0.024	0.067	-0.027
10	0.374	0.008	0.002	0.254	0.379	-0.135	0.155	0.104
11	0.056	0.113	0.110	0.086	0.756	0.107	-0.064	0.099
12	0.061	0.029	0.132	0.095	0.728	0.063	0.155	0.166
13	0.059	0.121	0.085	0.036	0.733	0.174	-0.102	-0.005
14	0.403	-0.090	-0.011	0.335	0.264	0.093	0.048	-0.254
15	0.387	-0.048	-0.054	0.484	0.172	0.063	0.222	-0.141
16	0.699	-0.078	0.140	0.157	-0.027	-0.050	0.115	0.283
17	0.708	0.013	0.004	0.241	0.005	0.067	0.023	0.001
18	0.722	0.136	0.051	-0.015	0.092	0.079	0.029	0.031
19	0.726	0.170	0.008	0.063	0.092	0.081	-0.167	-0.094
20	0.673	-0.023	0.017	0.081	0.039	0.078	0.125	-0.103
22	0.676	0.126	0.054	0.008	0.025	0.096	0.042	-0.066
24	0.363	-0.083	0.088	-0.017	0.021	-0.005	0.499	0.056
25	0.655	-0.087	0.132	0.093	-0.044	-0.059	0.174	0.321
30	0.172	0.464	-0.024	-0.043	0.012	0.169	0.151	-0.245
34	0.004	0.613	0.157	0.129	0.040	-0.013	0.021	0.263
35	0.017	0.698	0.153	0.046	0.096	0.085	0.086	0.117
36	0.033	0.703	0.108	0.092	0.102	0.114	0.141	0.028
37	0.031	0.604	0.094	0.232	0.048	0.023	0.144	0.109
39	0.058	0.375	0.136	0.090	0.168	0.295	0.089	0.451
40	0.036	0.338	0.036	0.126	-0.082	0.190	0.588	-0.025
41	0.040	0.197	0.018	0.098	0.029	0.072	0.684	-0.030
42	0.033	0.300	-0.014	0.036	0.025	0.115	0.513	0.255
46	0.065	0.030	-0.032	0.198	0.295	0.023	0.064	0.519
48	-0.036	0.309	0.122	-0.107	0.070	0.204	0.057	0.569
52	0.038	0.142	-0.097	0.645	0.039	0.219	0.059	0.191
53	0.127	0.206	0.017	0.551	0.102	0.478	0.046	0.029
54	-0.087	0.229	0.054	0.087	0.330	0.483	-0.236	0.117
55	0.136	0.072	0.114	0.106	0.099	0.642	0.206	-0.016
56	0.035	0.164	0.150	0.036	0.116	0.635	-0.007	0.173
57	0.140	-0.050	0.197	0.111	-0.004	0.574	0.244	0.012
Explained variance (%)	10.98	7.63	6.60	6.00	5.96	5.60	4.80	4.31
Total explained variance (%)	10.98	18.62	25.214	31.22	37.17	42.77	47.58	51.89
Cronbach's α	0.834	0.716	0.734	0.712	0.684	0.608	0.584	0.534

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[1] *Corresponding author: neslihancelik@erciyes.edu.tr