Table 3

Factors associated with enrolled mothers being lost to follow-up before they delivered their infants (n=500)

	Frequency n/N (%)	Crude OR (95% CI)	Adjusted OR (95% CI)	P value
Site				<0.001
Port Moresby	3/303 (1.0)	1.0	1.0
Goroka	46/197 (23.4)	30.46 (8.52 to 109.0)	39.7 (11.7 to 134.8)
Age group
16–20 years	19/82 (23.2)	3.80 (1.97 to 7.32)	2.92 (1.16 to 7.36)	0.023
21–30 years	25/340 (7.4)	1.0	1.0
31–48 years	5/78 (6.4)	0.86 (0.32 to 2.33)	0.90 (0.29 to 2.73)	0.855
Marital status
Married	24/335 (7.2)	1.0	1.0
Married-polygamist	22/125 (17.6)	2.77 (1.48 to 5.19)	0.69 (0.31 to 1.53)	0.360
Single/widow/no partner/boyfriend only	3/40 (7.5)	1.05 (0.30 to 3.66)	0.62 (0.14 to 2.68)	0.523
Education
No formal education	14/79 (17.7)	1.0	1.0
Primary education	20/203 (9.9)	0.51 (0.24 to 1.07)	0.78 (0.33 to 1.84)	0.567
Secondary or more	15/218 (6.9)	0.34 (0.16 to 0.76)	0.66 (0.26 to 1.69)	0.389
Employment				0.400
Formal or informal sector	19/228 (8.3)	1.0	1.0
No paid work or student	30/272 (11.0)	1.36 (0.74 to 2.50)	0.73 (0.34 to 1.53)
Parity at enrolment
Nullipara	26/153 (17.0)	1.0	1.0
Primipara	10/153 (6.5)	0.34 (0.16 to 0.74)	0.74 (0.28 to 1.95)	0.539
Multipara	13/194 (6.7)	0.35 (0.17 to 0.72)	0.58 (0.21 to 1.62)	0.301
Relationship HIV status
Concordant HIV positive	12/212 (5.7)	1.0	1.0
Discordant HIV status	12/94 (12.8)	2.44 (1.04 to 5.70)	2.94 (1.11 to 7.84)	0.030
Unknown or no partner	25/194 (12.9)	2.47 (1.19 to 5.09)	1.82 (0.77 to 4.34)	0.173
HIV status disclosure
Yes	44/444 (9.9)	1.0	1.0
No	5/56 (8.9)	0.89 (0.34 to 2.35)	1.57 (0.41 to 5.99)	0.505
HIV status at ANC visit
Known positive	12/273 (4.4)	1.0	1.0
Newly diagnosed	37/227 (16.3)	4.24 (2.12 to 8.46)	3.50 (1.62 to 7.59)	0.001