Variable

Frequency (N = 437)

Percent

Illness in last 48 hours

Yes

52

11.9

No

385

88.1

Use of antipyretic drug

Yes

162

37.1

No

275

62.9

Immunization

At birth

Yes

411

94.1

No

26

5.9

6 weeks

Yes

402

92.0

No

13

3.0

Not applicable

22

5.0

10 weeks

Yes

359

82.2

No

25

5.7

Not applicable

53

12.1

14 weeks

Yes

294

67.3

No

41

9.4

Not applicable

102

23.3

9 months

Yes

102

23.3

No

110

25.2

Not applicable

225

51.5