Variable

Frequency

Kruskal-Wallis Rank Sum

Chi-square

P-value

Marital Status

Single

270

225,789.00

Married

1062

991,518.00

Cohabiting

348

282,911.50

20.803

0.0009

Separated

44

37,290.00

Divorced

38

34,654.50

Widow

18

129,270.00

Gender

Male

1701

1.51

0.018

0.8930

Female

79

70,949.50

Religion

None

71

63,340.00

Christian

1277

1.12

22.686

0.0001

Muslim

363

346,302.50

Traditional Area

57

38,962.50

Other

12

15,441.50

Educational level

None

453

390,228.50

Primary

612

505,126.00

32.188

0.0001

Secondary

643

626,813.00

Tertiary

56

45,533.00

Other

16

17,389.50

Employment

Book man

22

16,588.50

Commercial driver

1592

1.43

Engineer

39

38,096.00

Mate

54

39,606.50

17.740

0.0069

Private driver

7

9367.00

Station master

49

37,824.00

Taxi driver

17

18,124.50