Table 1 Distribution of CD4 count and associated selected covariates with percent missing.

From: Negative binomial mixed models for analyzing longitudinal CD4 count data

Covariates

Level

CD4 count N (%)

p-value

% Missing

< 200

200–500

> 500

Baseline BMI category

Underweight

2 (0.03)

219 (3.12)

254 (3.62)

< 0.0001

0.0

Normal weight

114 (1.62)

2305 (32.84)

2690 (38.32)

Overweight

18 (0.26)

512 (7.29)

657 (9.36)

Obese

0

17 (0.24)

231 (3.29)

Baseline viral load

Undetected

0

0

16 (0.23)

< 0.0001

0.0

Low

20 (0.28)

791 (11.27)

1532 (21.83)

Medium

45 (0.64)

1209 (17.22)

1497 (21.23)

High

69 (0.98)

1053 (15)

787 (11.21)

Number of sexual partners

No partner

29 (0.41)

565 (8.05)

579 (8.25)

< 0.0001

0.0

Stable partner

85 (1.21)

2274 (32.4)

3078 (43.85)

Many partners

20 (0.28)

214 (3.05)

175 (2.49)

Age group

< 20

1 (0.01)

130 (1.82)

121 (1.72)

< 0.0001

0.0

20–29

97 (1.38)

1872 (26.67)

1977 (28.17)

30–39

17 (0.24)

813 (11.58)

1255 (17.88)

40–49

19 (0.27)

203 (2.89)

369 (5.26)

50–59

0

35 (0.5)

91 (1.3)

 ≥ 60

0

0

19 (0.27)

Educational level

Primary school

3 (0.04)

104 (1.48)

181 (2.58)

0.0129

0.0

Secondary school

131 (1.87)

2949 (42.01)

3651 (52.02)

Place of residence

Rural

62 (0.88)

1467 (20.90)

1806 (25.73)

0.7176

0.06

Urban

72 (1.03)

1586 (22.6)

2026 (28.86)

ART initiation group

Pre ART

110 (1.57)

2566 (36.56)

2783 (39.65)

< 0.0001

0.0

Post ART

20 (24)

487 (6.94)

1049 (14.95)

  1. The response variable (CD cell count) has 110 (1.5%) missing observations.