Table 2

- Comparison of the mean score of overall quality of life based on demographics, clinical characteristics of systemic lupus erythematosus patients and systemic lupus erythematosus related damage (results of univariate analysis).

VariablesMean±SDP-values
Gender
Male57.56±12.370.951*
Female57.72±11.96
Age in yearsr= -0.0530.384
Marital status
Single58.44±12.600.518**
Married57.70±11.15
Divorced54.90±13.50
Widowed52.93±5.31
Educational level
Illiterate58.69±10.420.850**
Below secondary school56.41±13.74
Secondary school/diploma57.40±11.36
University/postgraduate58.29±12.27
Job status
Unemployed57.93±11.700.975**
Student57.68±13.57
Employee56.99±12.06
Retired60.22±6.06
Average family income (SR/month)
<500057.28±12.000.068**
5000-1000062.08±11.70
10001-1500056.04±11.85
>1500053.48±10.06
Smoking status
Never smoke58.19±11.870.084**
Current smoker51.73±12.28
Ex-smoker54.98±12.43
Body mass index
Underweight61.22±12.740.139**
Normal56.99±12.21
Overweight59.06±11.37
Obese55.90±11.76
Disease duration (years)
<559.16±12.180.142**
5-1055.90±11.77
>1058.53±11.94
Number of medications
≤356.68±11.530.561**
4-658.41±12.33
>658.15±12.17
Overall SLE damage in the last 6 months (no/yes)58.35±11.76/56.30±12.370.192*
Ocular (no/yes)57.69±12.25/57.79±10.590.959*
Neuropsychiatric (no/yes)57.97±12.15/56.50±11.180.437*
Cardiovascular (no/yes)57.74±11.96/57.03±12.650.835*
Pulmonary (no/yes)62.08±10.64/57.34±12.030.081*
Renal (no/yes)58.47±13.15/57.62±11.860.723*
Gastrointestinal (no/yes)58.71±9.90/57.68±12.040.823*
Peripheral vascular diseases (no/yes)57.70±12.21/57.74±10.710.985*
Skin (no/yes)59.37±11.79/57.24±12.010.227*
Musculoskeletal (no/yes)58.36±13.24/57.57±11.720.685*
Diabetes mellitus (no/yes)57.77±12.02/56.70±11.570.730*
Malignancy (no/yes)67.65±7.48/57.63±11.980.239*
Premature gonadal failure (no/yes)59.19±12.92/57.40±11.780.357*

Values are presented as mean ± standard deviation (SD).

SR: Saudi Riyals, SLE: systemic lupus erythematosus

  • * Independent 2 samples t-test.

  • ** One-way analysis of variance test.

  • Pearson’s coefficient of correlation.