Tab. I.
demographic and clinical characteristics of the case and control groups.
| Variable | Cases (%) | Controls (%) | P-value |
|---|---|---|---|
| Gender | |||
| Male | 20(20) | 52(52) | 0.000 |
| Female | 80(80) | 48(48) | |
| Marital status | |||
| Single | 25(25) | 19(19) | 0.3 |
| Married | 75(75) | 81(81) | |
| Educational level | |||
| Non-academic | 63(63) | 72(72) | 0.1 |
| Academic | 37(37) | 28(28) | |
| Positive family history | |||
| No | 90(90) | 94(94) | 0.2 |
| Yes | 10(10) | 6(6) | |
| Smoking status | |||
| Non-smoker | 94(94) | 73(73) | 0.000 |
| Smoker | 6(6) | 27(27) | |
| Exclusive breast feeding | |||
| Non-breast feeding | 22(22) | 6(6) | 0.001 |
| Breast feeding | 78(78) | 94(94) | |
| History of measles | |||
| No | 64(64) | 50(50) | 0.04 |
| Yes | 36(36) | 50(50) | |
| Season of birth | |||
| Spring | 23(23) | 33(33) | 0.08 |
| Summer | 27(27) | 31(31) | |
| Autumn | 29(29) | 15(15) | |
| Winter | 21(21) | 21(21) | |
| Blood group | |||
| AB | 5(5) | 14(14) | 0.3 |
| A | 21(21) | 22(22) | |
| B | 20(20) | 24(24) | |
| O | 25(25) | 40(40) | |
| Blood Rh | |||
| Negative | 13(13) | 24(24) | 0.2 |
| Positive | 60(60) | 73(73) | |
| BMI | |||
| Underweight | 2(2) | 4(4) | 0.6 |
| Normal weight | 32(32) | 33(33) | |
| Overweight & obesity | 32(32) | 43(43) | |
| Type of personality | |||
| B | 30(30) | 40(40) | 0.1 |
| A | 70(70) | 60(60) | |