Development and validation of sunlight exposure measurement questionnaire (SEM-Q) for use in adult population residing in Pakistan

• Main Authors: Humayun Quratulain (Author), Iqbal Romaina (Author), Azam Iqbal (Author), Khan Aysha (Author), Siddiqui Amna (Author), Baig-Ansari Naila (Author)
• Format: Book
• Published: BMC, 2012-06-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Vitamin D deficiency has been identified as a major public health problem worldwide. Sunlight is the main source of vitamin D and its measurement using dosimeters is expensive and difficult for use in population-based studies. Hence,...