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Table 1 Demographic characteristics of the study sample.

From: Sleep habits and sleep problems among Palestinian students

No. Variable Statistics*
1. Gender  
  1. Male 207 (51.8%)
  2. Female 193 (48.2%)
2. Age (years) 20.2 ± 1.3
3. College  
  1. Medical 203 (50.8%)
  2. Non-Medical 197 (49.2%)
4. Academic level  
  1. First year 77 (19.3%)
  2. Second year 133 (33.2%)
  3. Third year 90 (22.5%)
  4. Fourth year 100 (25%)
5. Place of living  
  1. Student housing 162 (40.4%)
  2. With parents 238 (59.5%)
6. Permanent residence  
  1. City 194 (48.5%)
  2. Village 206 (51.5%)
7. Body Mass Index (BMI)  
  1. Within normal range 380 (95%)
  2. Above or below normal range 20 (5%)
8. Do you work during day?  
  1. Never 306 (76.5%)
  2. Sometimes 75 (18.8%)
  3. Part-time 11 (2.8%)
  4. Full time 8 (2%)
9. Do you work at night?  
  1. Never 353 (88.2%)
  2. Sometimes 40 (10%)
  3. Part-time 3 (0.8%)
  4. Full time 4 (1%)
  1. *Statistics are expressed as mean ± SD for continuous variables and as a frequency for categorical variables.