Participants and data collection
Validation participants
The Research Proposal was initially registered via the following: FRP/2018/228 at the Institutional Review Board of Riyadh Elm University. The Proposal was further reviewed and approved by IRB Number: RC/IRB/2018/1185. There was a choice for each participant whether they wanted to participate or not as dictated by the Declaration of Helsinki.
A total of 50 parents from Riyadh region participated in the survey.
Each parent filled the survey once in Arabic and another time in English (total of English and Arabic surveys were 100). Potential participants were briefed about the purposes and procedures of the study and a verbal consent was taken as well as an electronic consent before completing the electronic survey. Inclusion criteria were as follows, parents of male and female medically fit children from 3-12 years of age. Children more than the age of 12 and less than the age of 3, children with hearing or visual impairment, children with learning disabilities, major psychiatric illnesses, or with maxillofacial deformities were excluded from the survey. 2 Exclusion and inclusion criteria’s were mentioned with the consent.
The correlation coefficient was computed to examine the correlation between responses of English and Arabic questionnaires. For continuous variables, Pearson correlation coefficient (r)was used. The Pearson coefficient of correlation (r) measure the degree of association between quantitative variables. The values of r lie between -1 and +1, a coefficient of +1 indicates that the two variables are perfectly positively correlated, so as one variable increases, the other increases by a proportionate amount. Conversely, a coefficient of -1 indicates a perfect negative relationship: if one variable increases the other decreases by a proportionate amount. A coefficient of zero indicates no linear relationship at all and so if one variable changes, the other stays the same. Pearson coefficient of correlation calculated using the following formula:
Where Xs are observed values of the independent variable, Ys are observed values of the dependent variable, and N is the sample size.
Spearman rank correlation was used for categorical variables.
A value of 0.70 and above correlation was considered as indication of consistency in responses.
The Saudi Arabic version of Owens (CSHQ) 16 was adapted in the following six stages. Fig.1
Stage I Forward translation
Three bilingual translators, with Arabic as their mother tongue independently completed three forward translations of the original English version into the Saudi Arabic version. The translators aimed for a literal and conceptual translation. A written report with their comments on any difficulties and the rationale for their choices for problematic questions was completed.
Stage II Synthesis
A meeting between the forward translators was arranged, and the three translators compared both translated documents. The translators synthesized both translated documents into one Arabic version by resolving any discrepancies on their reports.
Stage III Backward translation
Three bilingual translators with English as their mother tongue, back- translated the Arabic version into English. The three back-translation versions were then compared. The discrepancies were discussed and resolved by agreement.
Stage IV Expert review
An expert forward translator, a specialist in Orofacial pain from the Oral Maxillofacial Surgery department at Riyadh Elm University, reviewed all translated versions. The result was Pre-finalized Saudi Arabic version of the Owens Children’s Sleep Habits Questionnaire. The Pre-final version was compared to the original English version to ensure semantic equivalences.
Stage V Pilot Study
The Pre-finalized version was tested on a sample of 50 Saudi parents with medically fit children from age 3-12 years of age. Parents were asked to complete the questionnaire twice, once in the original English version and secondly in the pre-final Arabic version. An expert reviewed the answers of both completed questionnaires of each individual parent and no changes were needed.
Stage VI Prevalence of affected sleep domains
Both English and Arabic versions of the Owens CSHQ were distributed separately on a different sample of 1546 parents. The choice was up to each participant whether to solve the English or the Arabic version of the standard Questionnaire.
Prevalence participants
A total of 1546 parents from Riyadh region participated in the survey. Participants were made aware regarding the purposes and procedures of the study and an electronic consent was attained before conducting the electronic survey. Inclusion criteria were as follows, parents of male and female medically fit children from ages 3-12 years old. Children more than the age of 12 and less than the age of 3, children with hearing or visual impairment, children with learning disabilities, major psychiatric illnesses, or with maxillofacial deformities were excluded from the survey. 2 Exclusion and inclusion criteria’s were mentioned with the consent. These participants had the choice of completing the questionnaire in their preferred language (Arabic or English).
Questionnaire
Demographics
Demographics containing the following questions, how old is the mother, how old is the father, what is the education level of the mother, what is the education level of the father, average household income per month, which of the parents is currently working, which parent spends more time with the children, the marital status of the parents, how many children do you have, how old is your child, what gender is your child, which grade is your child in, does your child go to a private or public school, when does your child sleep during the weekdays, and when does your child sleep during the weekends (specifying that the participant should only choose one child to fill the survey).
Owens Children’s Sleep Habits Questionnaire
The Owens Children’s Sleep Habits Questionnaire16 consists of 8 sub-scales including Bedtime Resistance (6 items) with two reversed scores, Sleep Onset Delay (1 item) has a reversed score, Sleep Duration (3 items) with two reversed scores, Sleep Anxiety (4 items), Night Wakings (3 items), Parasomnias (7 items), and Sleep Disordered breathing (3 items) all with no reversed scores, and Daytime Sleepiness (8 items) with one reversed score. Total Sleep Disturbance score (33 items), scoring from 1-3 where 1 is Never/Rarely, 2 is sometimes, and 3 is usually. Missing data were treated according to developer guidelines.
All Questionnaires were distributed through survey monkey and subjected to IBM-SPSS statistical analysis.
Psychometric measurements and statistical analysis
Sample size estimation
Estimation of sample size was established within Riyadh with a population size of 621272 and a confidence level of 95% with 5% margin of error, suggesting a sample size of 384 in total.
Floor and sealing effect
When 15% or more of the participants score the lowest or highest possible sub-scale scores and this is called “Floor and sealing effect”.