There is at present apaucityof evaluations of disease management programs. The underlined word means -

There is at present a paucity of evaluations of disease management programs. The underlined word means - Scarcity.

Paucity (noun)  
English Meaning: The condition of having very little or not enough of something.
Bangla Meaning: [Uncountable noun] (আনুষ্ঠানিক) পরিমাপে বা সংখ্যায় স্বল্পতা; অভাব।

Synonyms: Scarcity (দুষ্প্রাপ্যতা; আকাল), Insufficiency (অপর্যাপ্ততা), Shortage (কমতি; ঘাটতি), Dearth (অভাব, কমতি), Deficit (ঘাটতি, আকাল)। 
Antonyms: Abundance (প্রয়োজনাধিক পরিমাণ; প্রাচুর্য; অতিপ্রাচুর্য), Teemingness, Sufficiency (পর্যাপ্ততা), Plenty (প্রচুর), Enough (যথেষ্ট)।

Example Sentence: 
1. There is a paucity of information on the ingredients of many cosmetics.
2. There is at present a paucity of evaluations of disease management programs. 

Source: Website Lecture.