The participants respond to each item according to the frequency of the impact on a 5-point Likert scale (ranging from 0 to 4): never, hardly ever, occasionally, fairly often, and very often [ 20].
Responses were arranged on a seven-point Likert scale to assess how much or how often the item described the feelings of the patient: degree of distress (not at all, minor, mild, moderate, moderate severe, severe, extremely severe) and frequency of the problem (never, hardly ever, occasionally, sometimes, frequently, most of the time, all of the time).
The provider status relates to their responses in the questionnaire, regarding whether they would always, occasionally or not ever personally provide dental implant treatment in the context of a scenario presented 28.
Which means that, ever so occasionally, people from the cooler neighbourhoods of Berlin find themselves lost around here.
Responses were coded as "Never" (0), "Hardly ever" (1), "Occasionally" (2), "Fairly often" (3), or "Very often" (4).
However, we found that most of the responses to the OHIP-14 domains showed little impact ("never", "hardly ever" or "occasionally") of oral conditions on OHRQoL.
The dependent variable was the OHIP-14Sp, which was dichotomized using two categories as cutting point: never or hardly ever and occasionally, fairly often or very often.
Each item is scored on a 5-point scale: 0, never; 1, hardly ever; 2, occasionally; 3, fairly often; and 4, very often or every day.
Table 3 shows the OHIP-14 dichotomization in two categories: (1) scores of "never", "hardly ever" and "occasionally"; and (2) scores of "fairly often" and "very often".
Answers to the 49 questions are scored on 5-point ordinal scales, ranging from never (0), hardly ever (1), occasionally (2), and fairly often (3), to very often (4).
Items were grouped into seven subdomains and respondents were required to answer the questions according to the frequency of the problems using a 5-point Likert scale (0, never; 1, hardly ever; 2, occasionally; 3, fairly often; and 4, very often) according to the proposal by Slade and Spencer based on the assumptions made by Locker et al. [ 10– 10].
