Fig. 4

Distribution of occupation sub-categories and UVR exposure periods in PKDL patients. The percentage of the sub-categories of the labourers (n = 93) were divided as daily wagers, mason, plumbers, carpenters, fitter, electrician, mechanics, rickshaw pullers or any others (A). However, the average sunlight exposure usually received by the patients (n = 283) was mentioned in the time slots like 0–2 h, 2–4 h, 4–6 h, 6–8 h or 8–10 h per day (B); in form of percentage (pie-chart). The past history of the patients (n = 283) either with or without VL, with past PKDL episode or combinations of both VL and PKDL were shown (in percentage) shown as pie chart C. Similarly the clinical manifestations were demonstrated with the appearance of lesions like macular, nodular, popular, or mixed types found among the patients (n = 283) shown as pie-chart, D. The body mass index of these patients was mentioned as percentage population of below average, average or more than average (E); while their habitual intake of Vitamin-D from dietary sources were noted as poor, deficient, average or good (F).