Table 1

Some demographic and medical history information compared between case and control groups

Factors/Groups & statistics

Cases

Controls

Statistical significance




Frequency/Mean

Percent/Standard deviation

Frequency/Mean

Percent/Standard deviation


Age

29.97

6.6

29.68

6.7

NS*

Marital status

Married

93

77

85

71

NS

Single

27

23

35

29

Education

Academic

13

11.3

23

19.3

NS

Non academic

117

88.7

97

80.7

Known melasma related diseases

0

0

0

0

7


• *: Non significant at 0.05 level

• **: Hypovitaminosis, Ovarian diseases, Specific endocrinologic diseases

Adalatkhah et al. BMC Dermatology 2008 8:3   doi:10.1186/1471-5945-8-3

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