Table 5 Binary logistic regression analysis
From: Visual health and prevalence of dry eye syndrome among university students in Iraq and Jordan
Demographic variable | Odds ratio of having dry eye syndrome (95% CI) |
|---|---|
Gender | |
 Males (Reference group) | 1.00 |
 Females | 0.87 (0.68–1.10) |
Age category | |
 18–20 years (Reference group) | 1.00 |
 21–23 years | 1.09 (0.87–1.37) |
 24–26 years | 0.86 (0.65–1.13) |
 27–29 years | 1.44 (1.00–2.08)* |
 30 years and above | 1.31 (0.88–1.97) |
Field of study | |
 Medical college (Reference group) | 1.00 |
 Non-medical college | 0.84 (0.67- 1.04) |
Marital status | |
 Single (Reference group) | 1.00 |
 Married | 0.97 (0.73–1.28) |
 Divorced | 1.54 (0.67–3.54) |
 Widowed | 1.00 (0.09–11.00) |
Year of study | |
 First year (Reference group) | 1.00 |
 Second year | 0.90 (0.68–1.19) |
 Third year | 0.69 (0.51–0.94)* |
 Fourth year | 1.16 (0.89–1.51) |
 Fifth year | 2.11 (1.41–3.16)*** |
 Sixth year | 1.06 (0.45–2.52) |
 Higher education | 0.93 (0.68–1.25) |
Income level | |
 Less than 700 USD (Reference group) | 1.00 |
 700 – 1500 USD | 1.10 (0.84–1.43) |
 1500 – 2000 USD | 1.09 (0.70–1.69) |
 More than 2000 USD | 0.94 (0.53–1.67) |
Do you suffer from any chronic conditions? | |
 No (Reference group) | 1.00 |
 Yes | 0.46 (0.31- 0.69)*** |
Contact lens user | |
 No (Reference group) | 1.00 |
 Yes | 1.70 (1.24–2.32)** |
Screen time (mobile, television, laptop, etc.…) (hours/day) | |
 Less than 2 h (Reference group) | 1.00 |
 2–4 h | 0.69 (0.47–1.00) |
 4–6 h | 1.11 (0.86–1.42) |
 6–8 h | 1.02 (0.80–1.31) |
 8 h and above | 1.11 (0.89–1.41) |