Table 5 Characteristics associated with delayed receipt of DTP at 2, 4 and 6 months of age
From: Immunisation timeliness in a cohort of urban Aboriginal and Torres Strait Islander children
Characteristic | 2 months | 4 months | 6 months | Any delayed | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Delayed: n/N (%) | OR (95% CI) | p-value | Delayed: n/N (%) | OR (95% CI) | p-value | Delayed: n/N (%) | OR (95% CI) | p-value | Delayed: n/N (%) | OR (95% CI) | p-value | |
Sex | ||||||||||||
Male | 16/64 (25.0) | 29/61 (47.5) | 28/52 (53.8) | 36/65 (55.4) | ||||||||
Female | 11/62 (17.7) | 0.65 (0.27–1.53) | 0.32 | 19/59 (32.2) | 0.52 (0.25–1.10) | 0.09 | 22/53 (41.5) | 0.61 (0.28–1.32) | 0.21 | 25/61 (41.0) | 0.56 (0.28–1.13) | 0.12 |
Care type | ||||||||||||
Both parents | 17/69 (24.6) | 28/67 (41.8) | 30/59 (50.8) | 33/68 (48.5) | ||||||||
Single parent | 9/48 (18.8) | 0.71 (0.25–1.89) | 0.60 | 19/44 (43.2) | 1.06 (0.46–2.44) | 1.00 | 18/38 (47.4) | 0.87 (0.35–2.13) | 0.90 | 27/50 (54.0) | 1.24 (0.56–2.76) | 0.69 |
Othera | 1/8 (12.5) | 0.44 (0.01–3.85) | 0.79 | 1/8 (12.5) | 0.20 (0.00–1.72) | 0.21 | 2/7 (28.6) | 0.39 (0.03–2.63) | 0.48 | 1/7 (14.3) | 0.18 (0.00–1.61) | 0.18 |
Primary Carer | ||||||||||||
Mother | 25/103 (24.3) | 42/98 (42.9) | 42/86 (48.8) | 52/104 (50.0) | ||||||||
Otherb | 2/16 (12.5) | 0.45 (0.05–2.17) | 0.48 | 5/15 (33.3) | 0.67 (0.21–2.10) | 0.49 | 5/12 (41.7) | 0.75 (0.22–2.54) | 0.64 | 5/15 (33.3) | 0.50 (0.16–1.56) | 0.23 |
Child care | ||||||||||||
No | 22/90 (24.4) | 35/84 (41.7) | 34/71 (47.9) | 43/90 (47.8) | ||||||||
Yes | 5/35 (14.3) | 0.52 (0.18–1.49) | 0.22 | 13/35 (37.1) | 0.83 (0.37–1.86) | 0.65 | 15/33 (45.5) | 0.91 (0.40–2.08) | 0.82 | 17/35 (48.6) | 1.03 (0.47–2.25) | 0.94 |
Education level of mother | ||||||||||||
Did not finish high school | 10/51 (19.6) | 19/49 (38.8) | 23/45 (51.1) | 27/51 (52.9) | ||||||||
High school | 13/56 (23.2) | 1.24 (0.44–3.53) | 0.83 | 21/53 (39.6) | 1.04 (0.47–2.30) | 0.93 | 18/45 (40.0) | 0.64 (0.28–1.47) | 0.29 | 24/56 (42.9) | 0.67 (0.31–1.43) | 0.30 |
Post-school qualificationc | 3/15 (20.0) | 1.02 (0.16–4.92) | 1.00 | 6/14 (42.9) | 1.18 (0.36–3.95) | 0.78 | 6/12 (50.0) | 0.96 (0.27–3.42) | 0.95 | 7/15 (46.7) | 0.78 (0.25–2.47) | 0.67 |
Education level of father | ||||||||||||
Did not finish high school | 14/57 (24.6) | 21/54 (38.9) | 25/48 (52.1) | 30/56 (53.6) | ||||||||
High school | 8/31 (25.8) | 1.07 (0.34–3.22) | 1.00 | 14/30 (46.7) | 1.37 (0.50–3.72) | 0.64 | 12/26 (46.2) | 0.79 (0.30–2.05) | 0.63 | 15/31 (48.4) | 0.81 (0.31–2.14) | 0.81 |
Post-school qualificationc | 1/14 (7.14) | 0.24 (0.01–1.89) | 0.28 | 4/13 (30.8) | 0.70 (0.14–2.93) | 0.84 | 5/10 (50.0) | 0.92 (0.24–3.59) | 0.91 | 4/13 (30.8) | 0.39 (0.08–1.60) | 0.23 |
Employment status of mother | ||||||||||||
Employedd | 1/15 (6.7) | 3/14 (21.4) | 3/12 (25.0) | 2/14 (14.3) | ||||||||
Unemployed | 26/109 (23.9) | 4.35 (0.60–192.46) | 0.23 | 45/104 (43.3) | 2.77 (0.68–16.40) | 0.20 | 46/92 (50.0) | 2.97 (0.68–18.14) | 0.18 | 58/110 (52.7) | 6.60 (1.37–63.51) | 0.01 |
Employment status of father | ||||||||||||
Employedd | 11/53 (20.8) | 19/49 (38.8) | 19/43 (44.2) | 22/52 (42.3) | 1.74 (0.79–3.80) | 0.17 | ||||||
Unemployed | 13/51 (25.5) | 1.31 (0.52–3.26) | 0.57 | 22/49 (44.9) | 1.29 (0.58–2.88) | 0.54 | 24/43 (55.8) | 1.60 (0.68–3.74) | 0.28 | 28/50 (56.0) | 0.73 (0.42–1.27) | 0.27 |
Number of other children in household | ||||||||||||
0 | 3/26 (11.5) | 5/23 (21.7) | 5/19 (26.3) | 5/24 (20.8) | ||||||||
1–2 | 17/68 (25.0) | 2.53 (0.64–14.81) | 0.25 | 30/66 (45.5) | 3.00 (1.00–9.04) | 0.05 | 31/59 (52.5) | 3.10 (0.99–9.71) | 0.05 | 37/68 (54.4) | 4.54 (1.52–13.55) | 0.01 |
3+ | 7/30 (23.3) | 2.30 (0.45–15.49) | 0.43 | 13/29 (44.8) | 2.93 (0.85–10.02) | 0.09 | 12/25 (48.0) | 2.58 (0.71–9.37) | 0.15 | 17/32 (53.1) | 4.31 (1.29–14.37 | 0.02 |
Income level | ||||||||||||
< $26,000 | 8/42 (19.0) | 19/40 (47.5) | 20/35 (37.7) | 28/44 (63.6) | ||||||||
$26,000–≤ $52,000 | 15/49 (30.6) | 1.86 (0.64–5.79) | 0.31 | 20/47 (42.6) | 0.82 (0.32–2.08) | 0.81 | 18/40 (45.0) | 0.62 (0.22–1.68) | 0.41 | 22/49 (44.9) | 0.47 (0.19–1.16) | 0.11 |
$52,000–≤ $78,000 | 3/21 (14.3) | 0.71 (0.11–3.46) | 0.93 | 6/19 (31.6) | 0.52 (0.13–1.82) | 0.38 | 8/18 (44.4) | 0.61 (0.16–2.18 | 0.56 | 7/19 (36.8) | 0.34 (0.09–1.16) | 0.09 |
> $78,000 | 1/9 (11.1) | 0.54 (0.01–5.13) | 0.99 | 2/9 (22.2) | 0.32 (0.03–1.98) | 0.31 | 2/7 (28.6) | 0.31 (0.03–2.21) | 0.33 | 2/9 (22.2) | 0.17 (0.02–1.03) | 0.06 |
Father’s age at birth of child | ||||||||||||
< 20 years | 2/7 (28.6) | 3/7 (42.9) | 4/7 (57.1) | 5/7 (71.4) | ||||||||
20–29 years | 16/76 (21.1) | 0.67 (0.10–7.66) | 0.95 | 28/71 (39.4) | 0.87 (0.14–6.39) | 1.00 | 32/64 (50.0) | 0.75 (0.10–4.84) | 1.00 | 37/76 (48.7) | 0.38 (0.03–2.52) | 0.45 |
≥ 30 years | 8/38 (21.1) | 0.67 (0.09–8.32) | 0.99 | 16/37 (43.2) | 1.01 (0.15–7.93) | 1.00 | 12/29 (41.4) | 0.54 (0.07–3.84) | 0.74 | 17/38 (44.7) | 0.33 (0.03–2.34) | 0.38 |
Mother’s age at birth of child | ||||||||||||
< 20 years | 6/28 (21.4) | 11/27 (40.7) | 14/26 (53.8) | 14/28 (50.0) | ||||||||
20–29 years | 16/67 (23.9) | 1.15 (0.36–4.08) | 1.00 | 25/63 (39.7) | 0.96 (0.35–2.69) | 1.00 | 27/55 (49.1) | 0.83 (0.29–2.33) | 0.87 | 34/67 (50.7) | 1.03 (0.43–2.49) | 0.95 |
≥ 30 years | 4/29 (13.8) | 0.59 (0.11–2.88) | 0.68 | 11/28 (39.3) | 0.94 (0.28–3.17) | 1.00 | 7/22 (31.8) | 0.41 (0.10–1.51) | 0.21 | 11/29 (37.9) | 0.61 (0.21–1.75) | 0.36 |
Gestational age | ||||||||||||
≥ 37 weeks gestation | 26/108 (24.1) | 44/103 (42.7) | 44/91 (48.4) | 55/108 (50.9) | ||||||||
< 37 weeks gestation | 0/15 (0.0) | 0.15 (0–0.96) | 0.04 | 3/14 (21.4) | 0.37 (0.06–1.51) | 0.21 | 4/11 (36.4) | 0.61 (0.12–2.61) | 0.67 | 4/15 (26.7) | 0.35 (0.08–1.29) | 0.13 |
Birthweight | ||||||||||||
≥ 2500 grams | 25/103 (24.3) | 42/98 (42.9) | 43/87 (49.4) | 53/103 (51.5) | ||||||||
< 2500 grams | 1/20 (5.0) | 0.17 (0.00–1.15) | 0.08 | 5/19 (26.3) | 0.48 (0.12–1.55) | 0.27 | 5/15 (33.3) | 0.51 (0.13–1.82) | 0.38 | 6/20 (30.0) | 0.40 (0.14–1.13) | 0.09 |