Vitiligo Calculator Apk
Apk Infos
| Version | 1.2 |
| Rating | 1.0/5, based on 1 votes |
| Size | 2.9 MB |
| Requires Android | Android 4.0+ (Ice Cream Sandwich) |
| Author's Notes | This app is used to calculate VASI, VIDA, VETF and VETI scores. |
About Vitiligo Calculator APK
Table Of Contents
Description
VITILIGO EUROPEAN TASK FORCE (VETF)VETF is a system that incorporates three components of vitiligo: extent, stage and progression of disease. Extent is based on rule of nines. Staging is based on cutaneous and hair pigmentation in vitiligo patches and divided in three stages:
Stage 0: Normal pigmentation
Stage 1: Incomplete depigmentation
Stage 2: Complete depigmentation (hair whitening less than 30% (<30%)
Stage 3: Complete depigmentation plus hair whitening more than 30% (>30%)
“Spreading” in VETF is (+1: progressive; 0: stable; −1: regressive)
VITILIGO AREA SEVERITY INDEX (VASI)
Its name is an adoption from PASI score in psoriasis. The percentage of vitiligo involvement is calculated in terms of hand units. One hand unit is approximately equivalent to 1% of the total body surface area. The degree of pigmentation is estimated to the nearest of one of the following percentages: 100% - complete depigmentation, no pigment is present; 90% - specks of pigment present; 75% - depigmented area exceeds the pigmented area; 50% - pigmented and depigmented areas are equal; 25% - pigmented area exceeds depigmented area; and 10% - only specks of depigmentation present. The VASI for each body region is determined by the product of the area of vitiligo in hand units and the extent of depigmentation within each hand unit measured patch.
Total body VASI = S All body sites [Hand Units] ´ [Residual depigmentation]
VITILIGO DISEASE ACTIVITY SCORE (VIDA)
VIDA score is a six-point scale for evaluating vitiligo activity. Individuals own opinion is the base in VIDA score. VIDA score based on patients’ opinion divided in 6 stages: Grading is as follows. VIDA Score:
+4: Activity of 6 weeks or less period
+3: Activity of 6 weeks to 3 months
+2: Activity of 3 to 6 months
+1: Activity of 6 to12 months
0: Stable at least for 1 year and
−1: Stable at least for 1 year with spontaneous repigmentation
Lower VIDA scores indicate less activity
VITILIGO EXTENT TENSITY INDEX (VETI)
The VETI score is a new system that proposes to measure the extent of vitiligo by a numerical score and combines analysis of extensity and severity of vitiligo and produce a constant and reproducible number like PASI. The percentage of extension involvement (p) evaluates using the rule of nines already used in burn assessment. Five sites affected, head (h), upper limbs (u), trunk (t) and lower limbs (l) and genitalia (g) are separately scored by using five stages of disease tensity (T):
Stage 0: Normal skin
Stage 1: Hypopigmentation (including trichrome and homogeneous lighter pigmentation)
Stage 2: Complete depigmentation with black hair and with perifollicular pigmentation
Stage 3: Complete depigmentation with black hair and without perifollicular pigmentation
Stage 4: Complete depigmentation with compound of white and black hair with/without perifollicular pigmentation
Stage 5: Complete depigmentation plus significant hair whitening
Notably an area where hair does not exist normally, like the extremities, is very resistant to treatment and placed in grade five. The total body VETI is calculated using the following formula that includes contributions from all body regions:
VETI score: (Percentage of head involvement × grade of tensity) + (Percentage of trunk involvement × grade of tensity) 4+ (Percentage of upper limbs involvement × grade of tensity) 2+ (Percentage of lower limbs involvement × grade of tensity) 4+ (Percentage of genitalia involvement × grade of tensity) 0.1
The coefficients reported in this formula are based on percent of skin surface by the rule of nines. Accordingly the coefficient of head is 1 (9:9=1), trunk and lower limb is 4 (36:9=4), upper limb is 2 (18:9=2) and genitalia is almost 0.1(1:9= 0.1).
Percentage of involvement: p
Tensity: T
VETI:
(Ph × Th) + (Pt × Tt)4 + (Pu × Tu)2 + (Pl × Tl)4 + (Pg × Tg)0.1
5 + 20 + 10 + 20 + 0.5 = 55.5
The maximum score of VETI is 55.5
Latest updates
What's new in version 1.2
Calculator Manually CheckedHow to install Vitiligo Calculator APK on Android phone or tablet?
Download Vitiligo Calculator APK file from ApkClean, then follow these steps:
Update Phone Settings
- Go to your phone Settings page
- Tap Security or Applications (varies with device)
- Check the Unknown Sources box
- Confirm with OK
Go to Downloads
- Open Downloads on your device by going to My Files or Files
- Tap the APK file you downloaded (com.thunkable.android.sivasubramaniandeveloper.Vitiligo_Scoring-v1.2-ApkClean.apk)
- Tap Install when prompted, the APK file you downloaded will be installed on your device.
Older Versions
| 1.2 (3) | 2.9 MB |
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