Research Article

Effect of Dill (Anethum graveolens) Oil on Pruritus and Quality of Life of Hemodialysis Patients: A Randomized Double-Blind Three-Arm Controlled Trial

Table 1

Characteristics related to demographics and clinical information of the participants.

VariableMedication (N = 37)Placebo (N = 37)Control (N = 37) value

Age (years) (mean ± SD)62.86 ± 11.3154.14 ± 13.65158.08 ± 11.9870.11

Gender (N, %)Female20 (54.1)22 (59.5)24 (64.9)0.641
Male17 (45.9)15 (40.5)13(35.1)

Marital status (N, %)Single0 (0)2 (5.4)1 (2.7)0.361
Married37 (100)35 (94.6)36 (97.3)

Education level (N, %)Illiterate17 (45.9)17 (45.9)18 (48.6)0.467
Literacy for reading and writing4 (10.8)0 (0)4 (10.8)
Under high school diploma11 (29.7)16 (43.2)8 (21.6)
High school diploma and higher5 (13.5)4 (10.8)7 (18.9)

Body mass index (BMI) (kg/m2)(mean ± SD)26.35 ± 4.10327.42 ± 5.37526.38 ± 3.5000.494

History of smoking (N, %)Yes2 (5.4)4 (10.8)0 (0)0.123
No35 (94.6)33 (89.2)37 (100)

Cause of kidney failure (N, %)Diabetes12 (32.4)7 (18.9)9 (24.3)0.087
Hypertension6 (16.2)16 (43.2)8 (21.6)
Diabetes and hypertension9 (24.3)10(27.0)14 (37.8)
10 (27.0)4 (10.8)6 (16.2)
5 (13.5)4 (10.8)7 (18.9)

History of hemodialysis (month) (mean ± SD)46.14 ± 32.62843.86 ± 31.85544.41 ± 39.0300.780

Adequacy of dialysis (Kt/) (mean ± SD)1.32 ± 0.2451.25 ± 0.1831.28 ± 0.1990.355

Duration of pruritus (week) (mean ± SD)58.03 ± 69.19166.24 ± 59.12454.84 ± 51.0060.395

Polycystic kidney disease, hydronephrosis, glomerulonephritis, or unknown. Kt/ (“K” is dialyzer urea clearance, “t” is total dialysis session time, and “” is volume of distribution of urea).