December 2007

Volume 24, Issue 4

Assessment of the reliability and validity of the Dental Neglect Scale in Norwegian adults

Authors: T.A. Trovik K.S. Klock O. Haugejorden A.N. Åstrøm E. Skaret


Aims To evaluate the reliability and construct validity of the Dental Neglect Scale (DNS) and to estimate the level of dental neglect in the adult Norwegian population. Methods A questionnaire containing socio-demographics, oral health attitude variables, self-reported service use and a translated version of the original DNS was tested in two samples: 1) a convenience sample of University employees (n=263) and 2) a proportionate random sample (n=2000) drawn from the national population register (age 16-79 years). The reliability assessment of the instrument was by internal consistency (Cronbach’s alpha) and factor analysis (principal component) (n=1309). The test-retest comparisons (n=108) were analyzed by Spearman’s rho for the sum-scores, and kappa statistics for single items. Logistic regression analyses were used to evaluate the construct validity of the DNS. Results The Cronbach’s alpha coefficient for the overall construct of DNS was 0.67 (n=173) and 0.57 (n=1301). Only one factor was extracted, explaining a total of 36% of the scale variance (n=1301). Cohen’s kappa for the test-retest comparisons ranged from 0.21-0.79 (n=108), and Spearman’s rho for the test-retest sum-scores was 0.60. Higher neglect scores were positively related to a negative opinion about own dental health (OR=3.3), last dental appointment because of pain or other problems (OR= 2.3), less than 20 teeth (OR=2.2), drinking soft drinks with sugar every day (OR=2.1), non-regular dental service use (OR=2.2) and using floss or toothpicks seldom or never (OR=1.6). The prevalence of high dental neglect was 20%. Conclusions The analyses indicated construct validity for the Dental Neglect Scale but low reliability for some of its items. One fifth of this representative sample of Norwegian adults reported a high level of dental neglect. Key words: Dental neglect, reliability, validity


Other articles in this issue

Article Pages Access
Editorial - The STROBE initiative and its implications for dental public health research 194-197 Download
Evaluation of the Parental Perceptions Questionnaire, a component of the COHQoL, for use in the UK. 198-204 Download
Dental care use: does dental insurance truly make a difference in the US? 205-212 Download
Private dental health expenditure in Greece by region and income: comparison between the years 1987 and 1998. 213-216 Download
The prevalence and severity of dental pain in 14-15 year old Brazilian schoolchildren 217-224 Download
Dental caries prevalence among adults in Denmark – the impact of socio-demographic factors and use of oral health services 225-232 Download
The effect of advance telephone prompting in a survey of general dental practitioners in Scotland: A randomised controlled trial 233-237 Download
Dental caries trends among indigenous and non-indigenous Australian children 238-246 Download
Assessment of the reliability and validity of the Dental Neglect Scale in Norwegian adults 247-252 Download
Determinants of ECC in Sardinian preschool children 253-256 Download
The working practices and career satisfaction of dental therapists in New Zealand 257-263 Download
Short Communication - Caries prevalence and location and dental treatment needs in preschoolers in Athens – GENESIS Project 264-267 Download
BASCD Presidential Address - BASCD SPRING SCIENTIFIC MEETING 268-270 Download


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