Objectives: We aimed to assess the effect of anemia on subjective sleep quality in patients with iron deficiency anemia (IDA). Methods: One hundred and four patients diagnosed with IDA and 80 healthy individuals, who are gender and age matched, were included in the study. All participants were requested to fill 3 forms: a socio-demographic form (age, gender, marital status, income level and educational status), hospital anxiety and depression (HAD) scale and pittsburgh sleep quality index (PSQI). Results: According to the HAD scale, the average anxiety score was found 9.24±4.37 in patients and 7.58± 4.07 in controls. And, the average depression score was 7.53±4.10 in patients and 6.41±2.74 in controls. The total sleep quality score was 6.71±3.02 in patients and 4.11±1.64 in controls. There was a statistically significant difference in terms of anxiety, depression and sleep quality scores. Linear regression analysis showed no association between anxiety and depression with poor sleeping. Corresponding author: Semiz Murat, Gülhane Tıp Akademisi Psikiyatri AD, TR-06020, Ankara, Turkey. Email:drmuratsemiz@hotmail.com Introduction After a negative iron balance in the body due to reasons such as chronic blood loss, increased iron demand, and absorption disorder, hemoglobin synthesis is compensated by mobilization of iron from stores and when the stores of iron fail to release adequate iron, iron deficiency anemia (IDA) develops 1 . Just like in our country, iron deficiency is the most common cause of anemia in the world and is more prevalent in women than men 2,3 . It has been known that more than 30% of those attending to hospitals in developed countries are anemic and the said ratio is much higher in developing countries.

Generalized field equations of linear gravity are formulated on the basis of octons. When compared to the other eight-component noncommutative hypercomplex number systems, it is demonstrated that associative octons with scalar, pseudoscalar, pseudovector and vector values present a convenient and capable tool to describe the Maxwell–Proca-like field equations of gravitoelectromagnetism in a compact and simple way. Introducing massive graviton and gravitomagnetic monopole terms, the generalized gravitational wave equation and Klein–Gordon equation for linear gravity are also developed.

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