Resumo Objetivos: analisar a incidência de prematuridade em usuárias de uma operadora de planos de saúde; analisar os fatores de risco associados. Métodos: estudo retrospectivo, realizado em cinco maternidades com puérperas usuárias de planos de saúde por meio de entrevistas telefônicas guiadas por questionário semiestruturado. As variáveis estudadas foram relativas às condições sociodemográficas, clínicas e de desfecho. Realizou-se análise uni e multivariada com regressão logística Backward. Resultados: foram avaliadas 1193 participantes e identificados 116 nascimentos prematuros. Verificou-se que prematuro prévio (p<0,001; OR=4,596; IC95%=2,544-8,305), oligodrâmnio (p=0,019; OR=2,697; IC95%=1,140-6,380), diabetes mellitus anterior a gestação (p<0,001; OR=4,897; IC95%=2,147-11,169), gestação de gemelares (p<0,001; OR=7,115; IC95%=3,578-14,148), doença autoimune (p<0,001; OR=3,799; C95%=1,987-7,260), estresse durante a gestação (p=0,026; OR=1,568; IC95%=1,053-2,335), infecção urinária (p=0,008; OR=1,825; IC95%=1,161-2,867), placenta prévia (p=0,001; OR=3,180; IC95%=1,517-6,667), pré-eclâmpsia (p<0,001; OR=4,833; IC95%=2,860-8,169), sangramento gestacional (p=0,001; OR=2,185; IC95%=1,340-3,564), intervalo entre gestações menor que seis meses (p=0,001; OR=3,502; IC95%=1,594-7,698), gestação proveniente de fertilização in vitro (p<0,001; OR=2,874; IC95%=1,466-5,637) foram estatisticamente relevantes como fatores de risco para prematuridade. Conclusão: o conhecimento desses fatores pode ser importante na elaboração de estratégias para melhorar a assistência ofertada às gestantes por operadoras de planos de saúde. Objetivos associados Métodos retrospectivo semiestruturado sociodemográficas desfecho Realizouse Realizou se Backward Resultados 119 11 prematuros Verificouse Verificou p<0,001 p0001 p 0 001 (p<0,001 OR=4,596 OR4596 OR 4 596 IC95%=2,5448,305, IC9525448305 IC IC95%=2,544 8,305 , IC95 2 544 8 305 IC95%=2,544-8,305) p=0,019 p0019 019 (p=0,019 OR=2,697 OR2697 697 IC95%=1,1406,380, IC9511406380 IC95%=1,140 6,380 1 140 6 380 IC95%=1,140-6,380) OR=4,897 OR4897 897 IC95%=2,14711,169, IC95214711169 IC95%=2,147 11,169 147 169 IC95%=2,147-11,169) OR=7,115 OR7115 7 115 IC95%=3,57814,148, IC95357814148 IC95%=3,578 14,148 3 578 14 148 IC95%=3,578-14,148) OR=3,799 OR3799 799 C95%=1,9877,260, C9519877260 C C95%=1,987 7,260 C95 987 260 C95%=1,987-7,260) p=0,026 p0026 026 (p=0,026 OR=1,568 OR1568 568 IC95%=1,0532,335, IC9510532335 IC95%=1,053 2,335 053 335 IC95%=1,053-2,335) p=0,008 p0008 008 (p=0,008 OR=1,825 OR1825 825 IC95%=1,1612,867, IC9511612867 IC95%=1,161 2,867 161 867 IC95%=1,161-2,867) p=0,001 (p=0,001 OR=3,180 OR3180 180 IC95%=1,5176,667, IC9515176667 IC95%=1,517 6,667 517 667 IC95%=1,517-6,667) préeclâmpsia pré eclâmpsia OR=4,833 OR4833 833 IC95%=2,8608,169, IC9528608169 IC95%=2,860 8,169 860 IC95%=2,860-8,169) OR=2,185 OR2185 185 IC95%=1,3403,564, IC9513403564 IC95%=1,340 3,564 340 564 IC95%=1,340-3,564) OR=3,502 OR3502 502 IC95%=1,5947,698, IC9515947698 IC95%=1,594 7,698 594 698 IC95%=1,594-7,698) OR=2,874 OR2874 874 IC95%=1,4665,637 IC9514665637 IC95%=1,466 5,637 466 5 637 IC95%=1,466-5,637 Conclusão p<0,00 p000 00 (p<0,00 OR=4,59 OR459 59 5448 IC95%=2,5448,305 IC952544830 IC952544 IC95%=2,54 8305 8,30 IC9 54 30 IC95%=2,544-8,305 p=0,01 p001 01 (p=0,01 OR=2,69 OR269 69 1406 IC95%=1,1406,380 IC951140638 IC951140 IC95%=1,14 6380 6,38 38 IC95%=1,140-6,380 OR=4,89 OR489 89 14711 IC95%=2,14711,169 IC9521471116 IC952147 IC95%=2,14 11169 11,16 16 IC95%=2,147-11,169 OR=7,11 OR711 57814 IC95%=3,57814,148 IC9535781414 IC953578 IC95%=3,57 14148 14,14 57 IC95%=3,578-14,148 OR=3,79 OR379 79 9877 C95%=1,9877,260 C951987726 C951987 C95%=1,98 7260 7,26 C9 98 26 C95%=1,987-7,260 p=0,02 p002 02 (p=0,02 OR=1,56 OR156 56 0532 IC95%=1,0532,335 IC951053233 IC951053 IC95%=1,05 2335 2,33 05 33 IC95%=1,053-2,335 p=0,00 (p=0,00 OR=1,82 OR182 82 1612 IC95%=1,1612,867 IC951161286 IC951161 IC95%=1,16 2867 2,86 86 IC95%=1,161-2,867 OR=3,18 OR318 18 5176 IC95%=1,5176,667 IC951517666 IC951517 IC95%=1,51 6667 6,66 51 66 IC95%=1,517-6,667 OR=4,83 OR483 83 8608 IC95%=2,8608,169 IC952860816 IC952860 IC95%=2,86 8169 8,16 IC95%=2,860-8,169 OR=2,18 OR218 3403 IC95%=1,3403,564 IC951340356 IC951340 IC95%=1,34 3564 3,56 34 IC95%=1,340-3,564 OR=3,50 OR350 50 5947 IC95%=1,5947,698 IC951594769 IC951594 IC95%=1,59 7698 7,69 IC95%=1,594-7,698 OR=2,87 OR287 87 4665 IC95%=1,4665,63 IC951466563 IC951466 IC95%=1,46 5637 5,63 46 63 IC95%=1,466-5,63 p<0,0 p00 (p<0,0 OR=4,5 OR45 IC95%=2,5448,30 IC95254483 IC95254 IC95%=2,5 830 8,3 IC95%=2,544-8,30 p=0,0 (p=0,0 OR=2,6 OR26 IC95%=1,1406,38 IC95114063 IC95114 IC95%=1,1 638 6,3 IC95%=1,140-6,38 OR=4,8 OR48 1471 IC95%=2,14711,16 IC952147111 IC95214 IC95%=2,1 1116 11,1 IC95%=2,147-11,16 OR=7,1 OR71 5781 IC95%=3,57814,14 IC953578141 IC95357 IC95%=3,5 1414 14,1 IC95%=3,578-14,14 OR=3,7 OR37 C95%=1,9877,26 C95198772 C95198 C95%=1,9 726 7,2 9 C95%=1,987-7,26 OR=1,5 OR15 IC95%=1,0532,33 IC95105323 IC95105 IC95%=1,0 233 2,3 IC95%=1,053-2,33 OR=1,8 OR18 IC95%=1,1612,86 IC95116128 IC95116 286 2,8 IC95%=1,161-2,86 OR=3,1 OR31 IC95%=1,5176,66 IC95151766 IC95151 IC95%=1,5 666 6,6 IC95%=1,517-6,66 IC95%=2,8608,16 IC95286081 IC95286 IC95%=2,8 816 8,1 IC95%=2,860-8,16 OR=2,1 OR21 IC95%=1,3403,56 IC95134035 IC95134 IC95%=1,3 356 3,5 IC95%=1,340-3,56 OR=3,5 OR35 IC95%=1,5947,69 IC95159476 IC95159 769 7,6 IC95%=1,594-7,69 OR=2,8 OR28 IC95%=1,4665,6 IC95146656 IC95146 IC95%=1,4 563 5,6 IC95%=1,466-5,6 p<0, p0 (p<0, OR=4, OR4 IC95%=2,5448,3 IC9525448 IC9525 IC95%=2, 8, IC95%=2,544-8,3 p=0, (p=0, OR=2, OR2 IC95%=1,1406,3 IC9511406 IC9511 IC95%=1, 6, IC95%=1,140-6,3 IC95%=2,14711,1 IC95214711 IC9521 111 11, IC95%=2,147-11,1 OR=7, OR7 IC95%=3,57814,1 IC95357814 IC9535 IC95%=3, 141 14, IC95%=3,578-14,1 OR=3, OR3 C95%=1,9877,2 C9519877 C9519 C95%=1, 72 7, C95%=1,987-7,2 OR=1, OR1 IC95%=1,0532,3 IC9510532 IC9510 23 2, IC95%=1,053-2,3 IC95%=1,1612,8 IC9511612 28 IC95%=1,161-2,8 IC95%=1,5176,6 IC9515176 IC9515 IC95%=1,517-6,6 IC95%=2,8608,1 IC9528608 IC9528 81 IC95%=2,860-8,1 IC95%=1,3403,5 IC9513403 IC9513 35 3, IC95%=1,340-3,5 IC95%=1,5947,6 IC9515947 76 IC95%=1,594-7,6 IC95%=1,4665, IC9514665 IC9514 5, IC95%=1,466-5, p<0 (p<0 OR=4 IC95%=2,5448, IC952 IC95%=2 IC95%=2,544-8, p=0 (p=0 OR=2 IC95%=1,1406, IC951 IC95%=1 IC95%=1,140-6, IC95%=2,14711, IC9521471 IC95%=2,147-11, OR=7 IC95%=3,57814, IC9535781 IC953 IC95%=3 IC95%=3,578-14, OR=3 C95%=1,9877, C951 C95%=1 C95%=1,987-7, OR=1 IC95%=1,0532, IC95%=1,053-2, IC95%=1,1612, IC95%=1,161-2, IC95%=1,5176, IC95%=1,517-6, IC95%=2,8608, IC95%=2,860-8, IC95%=1,3403, IC95%=1,340-3, IC95%=1,5947, IC95%=1,594-7, IC95%=1,4665 IC95%=1,466-5 p< (p< OR= IC95%=2,5448 IC95%= IC95%=2,544-8 p= (p= IC95%=1,1406 IC95%=1,140-6 IC95%=2,14711 IC95%=2,147-11 IC95%=3,57814 IC95%=3,578-14 C95%=1,9877 C95%= C95%=1,987-7 IC95%=1,0532 IC95%=1,053-2 IC95%=1,1612 IC95%=1,161-2 IC95%=1,5176 IC95%=1,517-6 IC95%=2,8608 IC95%=2,860-8 IC95%=1,3403 IC95%=1,340-3 IC95%=1,5947 IC95%=1,594-7 IC95%=1,466- (p IC95% IC95%=2,544- IC95%=1,140- IC95%=2,1471 IC95%=2,147-1 IC95%=3,5781 IC95%=3,578-1 C95% C95%=1,987- IC95%=1,053- IC95%=1,161- IC95%=1,517- IC95%=2,860- IC95%=1,340- IC95%=1,594- IC95%=2,147- IC95%=3,578-
Abstract Objectives: to analyze the incidence ofprematurity in users of a health insurance plan; to analyze the associated risk factors. Methods: a retrospective study was conducted in five maternity hospitals with puerperal women who were users of health insurance plans by telephone interviews guided by a semi-structured questionnaire. The variables studied were related to sociodemographic, clinical and outcome conditions. Univariate and multivariate analysis with Backward logistic regression was performed. Results: 1,193 participants were evaluated and 116 premature births were identified. It was found that preterm birth (p<0.001; OR=4.596; CI95%=2.544-8.305), oligohydramnios (p=0.019; OR=2.697; CI95% =1.140-6.380), diabetes mellitus prior to pregnancy (p<0.001; OR=4.897; CI95%=2.147-11.169), twin pregnancy (p<0.001; OR=7.115; CI95%=3.578-14.148), autoimmune disease (p<0.001; OR=3.799; CI95%=1.987-7.260), stress during pregnancy (p=0.026; OR=1.568; CI95%=1.053-2.335), urinary infection (p=0.008; OR=1.825; CI95%=1.161-2.867), placenta previa (p=0.001; OR=3.180; CI95%=1.517-6.667), pre-eclampsia (p<0.001; OR=4.833; CI95%=2.860-8.169), gestational bleeding (p=0.001; OR=2.185; CI95%=1.340-3.564), interval between pregnancies less than six months (p=0.001; OR=3.502; CI95%=1.594-7.698), pregnancy resulting from in vitro fertilization (p<0.001; OR=2.874; CI95%=1.466-5.637) were statistically relevant as risk factors for prematurity. Conclusion: knowledge of these factors may be important in developing strategies to improve the assistance offered to pregnant women by the health insurance providers. Objectives plan Methods semistructured semi structured questionnaire sociodemographic conditions performed Results 1193 1 193 1,19 11 identified p<0.001 p0001 p 0 001 (p<0.001 OR=4.596 OR4596 OR 4 596 CI95%=2.5448.305, CI9525448305 CI CI95%=2.544 8.305 , CI95 2 544 8 305 CI95%=2.544-8.305) p=0.019 p0019 019 (p=0.019 OR=2.697 OR2697 697 =1.1406.380, 11406380 =1.140 6.380 140 6 380 =1.140-6.380) OR=4.897 OR4897 897 CI95%=2.14711.169, CI95214711169 CI95%=2.147 11.169 147 169 CI95%=2.147-11.169) OR=7.115 OR7115 7 115 CI95%=3.57814.148, CI95357814148 CI95%=3.578 14.148 3 578 14 148 CI95%=3.578-14.148) OR=3.799 OR3799 799 CI95%=1.9877.260, CI9519877260 CI95%=1.987 7.260 987 260 CI95%=1.987-7.260) p=0.026 p0026 026 (p=0.026 OR=1.568 OR1568 568 CI95%=1.0532.335, CI9510532335 CI95%=1.053 2.335 053 335 CI95%=1.053-2.335) p=0.008 p0008 008 (p=0.008 OR=1.825 OR1825 825 CI95%=1.1612.867, CI9511612867 CI95%=1.161 2.867 161 867 CI95%=1.161-2.867) p=0.001 (p=0.001 OR=3.180 OR3180 180 CI95%=1.5176.667, CI9515176667 CI95%=1.517 6.667 517 667 CI95%=1.517-6.667) preeclampsia pre eclampsia OR=4.833 OR4833 833 CI95%=2.8608.169, CI9528608169 CI95%=2.860 8.169 860 CI95%=2.860-8.169) OR=2.185 OR2185 185 CI95%=1.3403.564, CI9513403564 CI95%=1.340 3.564 340 564 CI95%=1.340-3.564) OR=3.502 OR3502 502 CI95%=1.5947.698, CI9515947698 CI95%=1.594 7.698 594 698 CI95%=1.594-7.698) OR=2.874 OR2874 874 CI95%=1.4665.637 CI9514665637 CI95%=1.466 5.637 466 5 637 CI95%=1.466-5.637 prematurity Conclusion providers 119 19 1,1 p<0.00 p000 00 (p<0.00 OR=4.59 OR459 59 5448 CI95%=2.5448.305 CI952544830 CI952544 CI95%=2.54 8305 8.30 CI9 54 30 CI95%=2.544-8.305 p=0.01 p001 01 (p=0.01 OR=2.69 OR269 69 1406 =1.1406.380 1140638 1140 =1.14 6380 6.38 38 =1.140-6.380 OR=4.89 OR489 89 14711 CI95%=2.14711.169 CI9521471116 CI952147 CI95%=2.14 11169 11.16 16 CI95%=2.147-11.169 OR=7.11 OR711 57814 CI95%=3.57814.148 CI9535781414 CI953578 CI95%=3.57 14148 14.14 57 CI95%=3.578-14.148 OR=3.79 OR379 79 9877 CI95%=1.9877.260 CI951987726 CI951987 CI95%=1.98 7260 7.26 98 26 CI95%=1.987-7.260 p=0.02 p002 02 (p=0.02 OR=1.56 OR156 56 0532 CI95%=1.0532.335 CI951053233 CI951053 CI95%=1.05 2335 2.33 05 33 CI95%=1.053-2.335 p=0.00 (p=0.00 OR=1.82 OR182 82 1612 CI95%=1.1612.867 CI951161286 CI951161 CI95%=1.16 2867 2.86 86 CI95%=1.161-2.867 OR=3.18 OR318 18 5176 CI95%=1.5176.667 CI951517666 CI951517 CI95%=1.51 6667 6.66 51 66 CI95%=1.517-6.667 OR=4.83 OR483 83 8608 CI95%=2.8608.169 CI952860816 CI952860 CI95%=2.86 8169 8.16 CI95%=2.860-8.169 OR=2.18 OR218 3403 CI95%=1.3403.564 CI951340356 CI951340 CI95%=1.34 3564 3.56 34 CI95%=1.340-3.564 OR=3.50 OR350 50 5947 CI95%=1.5947.698 CI951594769 CI951594 CI95%=1.59 7698 7.69 CI95%=1.594-7.698 OR=2.87 OR287 87 4665 CI95%=1.4665.63 CI951466563 CI951466 CI95%=1.46 5637 5.63 46 63 CI95%=1.466-5.63 1, p<0.0 p00 (p<0.0 OR=4.5 OR45 CI95%=2.5448.30 CI95254483 CI95254 CI95%=2.5 830 8.3 CI95%=2.544-8.30 p=0.0 (p=0.0 OR=2.6 OR26 =1.1406.38 114063 114 =1.1 638 6.3 =1.140-6.38 OR=4.8 OR48 1471 CI95%=2.14711.16 CI952147111 CI95214 CI95%=2.1 1116 11.1 CI95%=2.147-11.16 OR=7.1 OR71 5781 CI95%=3.57814.14 CI953578141 CI95357 CI95%=3.5 1414 14.1 CI95%=3.578-14.14 OR=3.7 OR37 CI95%=1.9877.26 CI95198772 CI95198 CI95%=1.9 726 7.2 9 CI95%=1.987-7.26 OR=1.5 OR15 CI95%=1.0532.33 CI95105323 CI95105 CI95%=1.0 233 2.3 CI95%=1.053-2.33 OR=1.8 OR18 CI95%=1.1612.86 CI95116128 CI95116 CI95%=1.1 286 2.8 CI95%=1.161-2.86 OR=3.1 OR31 CI95%=1.5176.66 CI95151766 CI95151 CI95%=1.5 666 6.6 CI95%=1.517-6.66 CI95%=2.8608.16 CI95286081 CI95286 CI95%=2.8 816 8.1 CI95%=2.860-8.16 OR=2.1 OR21 CI95%=1.3403.56 CI95134035 CI95134 CI95%=1.3 356 3.5 CI95%=1.340-3.56 OR=3.5 OR35 CI95%=1.5947.69 CI95159476 CI95159 769 7.6 CI95%=1.594-7.69 OR=2.8 OR28 CI95%=1.4665.6 CI95146656 CI95146 CI95%=1.4 563 5.6 CI95%=1.466-5.6 p<0. p0 (p<0. OR=4. OR4 CI95%=2.5448.3 CI9525448 CI9525 CI95%=2. 8. CI95%=2.544-8.3 p=0. (p=0. OR=2. OR2 =1.1406.3 11406 =1. 6. =1.140-6.3 CI95%=2.14711.1 CI95214711 CI9521 111 11. CI95%=2.147-11.1 OR=7. OR7 CI95%=3.57814.1 CI95357814 CI9535 CI95%=3. 141 14. CI95%=3.578-14.1 OR=3. OR3 CI95%=1.9877.2 CI9519877 CI9519 CI95%=1. 72 7. CI95%=1.987-7.2 OR=1. OR1 CI95%=1.0532.3 CI9510532 CI9510 23 2. CI95%=1.053-2.3 CI95%=1.1612.8 CI9511612 CI9511 28 CI95%=1.161-2.8 CI95%=1.5176.6 CI9515176 CI9515 CI95%=1.517-6.6 CI95%=2.8608.1 CI9528608 CI9528 81 CI95%=2.860-8.1 CI95%=1.3403.5 CI9513403 CI9513 35 3. CI95%=1.340-3.5 CI95%=1.5947.6 CI9515947 76 CI95%=1.594-7.6 CI95%=1.4665. CI9514665 CI9514 5. CI95%=1.466-5. p<0 (p<0 OR=4 CI95%=2.5448. CI952 CI95%=2 CI95%=2.544-8. p=0 (p=0 OR=2 =1.1406. =1 =1.140-6. CI95%=2.14711. CI9521471 CI95%=2.147-11. OR=7 CI95%=3.57814. CI9535781 CI953 CI95%=3 CI95%=3.578-14. OR=3 CI95%=1.9877. CI951 CI95%=1 CI95%=1.987-7. OR=1 CI95%=1.0532. CI95%=1.053-2. CI95%=1.1612. CI95%=1.161-2. CI95%=1.5176. CI95%=1.517-6. CI95%=2.8608. CI95%=2.860-8. CI95%=1.3403. CI95%=1.340-3. CI95%=1.5947. CI95%=1.594-7. CI95%=1.4665 CI95%=1.466-5 p< (p< OR= CI95%=2.5448 CI95%= CI95%=2.544-8 p= (p= =1.1406 = =1.140-6 CI95%=2.14711 CI95%=2.147-11 CI95%=3.57814 CI95%=3.578-14 CI95%=1.9877 CI95%=1.987-7 CI95%=1.0532 CI95%=1.053-2 CI95%=1.1612 CI95%=1.161-2 CI95%=1.5176 CI95%=1.517-6 CI95%=2.8608 CI95%=2.860-8 CI95%=1.3403 CI95%=1.340-3 CI95%=1.5947 CI95%=1.594-7 CI95%=1.466- (p CI95%=2.544- =1.140- CI95%=2.1471 CI95%=2.147-1 CI95%=3.5781 CI95%=3.578-1 CI95%=1.987- CI95%=1.053- CI95%=1.161- CI95%=1.517- CI95%=2.860- CI95%=1.340- CI95%=1.594- CI95%=2.147- CI95%=3.578-