It consists of 74 items covering various health domains, including physical functioning, emotional well-being, and general symptoms. The items are divided into four dimensions related to the child's quality of life: gross motor function (GMF), fine motor function (FMF), psychosocial function (PF), and systemic or general symptoms (SGS). Each domain is scored on a Likert-type scale from 1 to 7; higher scores indicate poorer health-related quality of life. There is also a "not applicable to me" option for the items. The scale also includes a pain measurement (10 cm Visual Analog Scale (VAS)) to assess pain, but this score is not included in the total score.

It is a patient/parent-centered measurement method that helps assess the patient's biopsychosocial aspects, such as disease activity, posture, functional and psychosocial status, fatigue, and school performance. The results from the questions are used to assess the functional status of children, while their psychosocial status is recorded based on their answers to 21 questions (ranging from 0 to 358). A high score indicates a poor psychosocial status.

JAB-Q is a multidimensional questionnaire and a parent (family) form. Developed in Turkish by Ünal and colleagues, the questionnaire is completed by one of the child's parents. The family form evaluates the parents' biopsychosocial status from their own perspective and provides scores ranging from 0 to 102. Higher scores indicate a worse biopsychosocial status.

It is assessed using a 5-point Likert scale ranging from 0 (never) to 4 (always) and consists of 13 items. Similar to the child questionnaire, it assesses 3 domains: rumination, magnification, and helplessness. A total score between 0 and 52 is obtained; higher scores reflect a higher level of catastrophizing in parents.

It is a 20-question survey that evaluates the community participation of children and adolescents in school, neighborhood, and local settings. The survey is divided into four sections: 6 questions about home participation, four questions on neighborhood and community involvement, five questions regarding school participation, and five questions on home and community engagement. It is rated on a scale of "expected for their age (full participation), somewhat limited, very limited, unable to participate, and inapplicable." The survey is completed by the child's family or primary caregiver. The person filling out the questionnaire is asked to select the answer that best describes the child's level of participation. The assessment is scored out of 100 points, with higher scores reflecting a greater level of participation.

It was developed by adding five questions to the HAQ regarding Raynaud's phenomenon, digital ulcers, gastrointestinal, pulmonary, and general scleroderma symptoms, to be rated on a 15 cm line. The SHAQ total score ranges from 0 to 3. A high score indicates low functionality.

It was standardized as a biopsychosocial assessment tool and is scored using a 5-point Likert scale, with each item rated from 0 to 4 points. A high total score on the 30-item scale indicates a high level of biopsychosocial impact.

It will be used to determine an individual's quality of life levels. Each sub-parameter is scored between 0 and 100 points, with a high score indicating good health status. The SF-36 scale has eight sub-parameters: general health perception, physical function, social function, pain, mental health, role difficulty due to physical reasons, role difficulty due to emotional reasons, and vitality. It contains 11 questions consisting of a total of 36 items.

It is a 40-item scale, scored on a 0-4 Likert scale, that assesses symptoms related to central sensitization. A score above 40 is interpreted as an indicator of central sensitization.

It consists of fourteen questions, with odd-numbered questions assessing anxiety and even-numbered questions assessing depression. The options are scored from 0 to 3, with higher scores indicating a worse emotional state. The Turkish cut-off values for the scale are 10 for the anxiety subscale and 7 for the depression subscale.

A pediatric and adult rheumatologist assessed it. The MRSS evaluates skin thickening in 17 body regions, graded from 0 (normal) to 3 (severe skin thickening). The total score ranges from 0 to 51, with increased scores indicating poor skin involvement.

LoSCAT consists of two sections: the modified Localized Skin Severity Index, which measures disease activity, and the Localized Scleroderma Damage Index, which assesses damage (usually scored between 0 and 3). The Localized Skin Severity Index evaluates the color of the lesion border for erythema, skin thickness, and the presence of new lesions or lesion extension. In the Localized Scleroderma Damage Index, three areas of cutaneous damage are combined to obtain a score. These areas evaluate hyperpigmentation or hypopigmentation, whichever is more prominent, as well as dermal atrophy, subcutaneous atrophy, and dyspigmentation.

It is a functional test developed specifically for scleroderma to assess an individual's hand function. It evaluates four specific hand movements (finger flexion, finger extension, finger abduction, and dorsal extension). Scores range from 0 (normal) to 3 (complete failure) for each movement, with a total score ranging from 0 to 12.

It consists of 13 items that describe the different thoughts and feelings children may experience when they feel pain. The questionnaire assesses three areas: rumination, magnification, and helplessness. All items are rated on a scale from 0 (never) to 4 (always). Higher scores reflect more catastrophic beliefs about pain. The total score can range from 0 to 48.

It includes 20 items divided into five subscales. These subscales are related to "Management of Treatment" (the first four items), "Scheduling Appointments" (items 5-11), "Monitoring Health Issues" (items 12-15), "Communication with Healthcare Personnel" (items 16-17), and "Management of Daily Activities" (items 18-20). The scale uses a 5-point Likert-type scale and has a total score range of 20 to 100. The scale score reflects the level of readiness for transitioning to adult care.

It includes 13 items that describe different thoughts and feelings that may occur when pain is experienced. The questionnaire assesses three areas: rumination, magnification, and helplessness. All items are rated on a scale from 0 (never) to 4 (always). Higher scores indicate more catastrophic pain beliefs. The total score ranges from 0 to 52.

It assesses elements such as comorbidity, cognitive impairment, and disability. Frailty scores range from 1 to 9, with one meaning 'very fit' and nine meaning 'terminally ill'. A score of 5 or above is considered a sign of frailty.

FRAIL is a 5-item scale developed by Morley and colleagues to evaluate frailty. Each question is scored as 0 or 1 point. The total score ranges from 0 to 5 points (0 points = Fit, 1-2 points = Pre-frail, 3-5 points = Frail).