Cochrane

N = 288

Web of Science

N = 2408

Embase

N = 4641

PubMed

N = 3703

万方

N = 200

中国知网

N = 67

#1 (pediatric*):ti,ab,kw

#2 (child*):ti,ab,kw

#3 (bab*):ti,ab,kw

#4 (infan*):ti,ab,kw

#5 (toddler*):ti,ab,kw

#6 (preschool):ti,ab,kw

#7 (pre-school):ti,ab,kw

#8 (adolescen*):ti,ab,kw

#9 (youth*):ti,ab,kw

#10 (teenage*):ti,ab,kw

#11 MeSH descriptor: [Child]

#12 MeSH descriptor: [Pediatrics]

#13 MeSH descriptor: [Infant]

#14 MeSH descriptor: [Adolescent]

#15 OR/#1-#14

#16 (pneumon*):ti,ab,kw

#17 (bronchopneumon*):ti,ab,kw

#18 (cap):ti,ab,kw

#19 MeSH descriptor: [Pneumonia]

#20 OR/#16-#19

#21 (death):ti,ab,kw

#22 (mortality):ti,ab,kw

#23 (surviv*):ti,ab,kw

#24 MeSH descriptor: [Death]

#25 MeSH descriptor: [Survival]

#26 MeSH descriptor: [Mortality]

#27 OR/#21-#26

#28 (risk factor*): ti,ab,kw

#29 MeSH descriptor: [Risk Factors]

#30 OR/#28-#29

#31 #15 AND #20 AND #27 AND #29

#1 TOPIC: “pediatric*”

#2 TOPIC: “child*”

#3 TOPIC: “bab*”

#4 TOPIC: “infan*”

#5 TOPIC: “toddler*”

#6 TOPIC:

“preschool”

#7 TOPIC:

“pre-school”

#8 TOPIC:

“adolescen*”

#9 TOPIC:

“youth*”

#9 TOPIC:

“teenage*”

#10 OR/#1-#9

#11 TOPIC: “pneumon*”

#12 TOPIC: “bronchopneumon*”

#13 TOPIC: “cap”

#14 OR/#1-#13

#15 TOPIC: “surviv*”

#16 TOPIC: “death”

#17 TOPIC: “mortality”

#18 OR/#15-#17

#19 TOPIC: “risk factor*”

#20 #10 AND #14 AND #18 AND #19

#1 'child'/exp

#2 'pediatrics'/exp

#3 'infant'/exp

#4 'adolescent'/exp

#5 pediatric*:ab,ti

#6 child*:ab,ti

#7 bab*:ab,ti

#8 infan*:ab,ti

#9 toddler*:ab,ti

#10 preschool:ab,ti

#11 'pre school':ab,ti

#12 adolescen*:ab,ti

#13 youth*:ab,ti

#14 teenage*:ab,ti

#15 OR/#1-#14

#16 'pneumonia'/exp

#17 pneumon*:ab,ti

#18 bronchopneumon*:ab,ti

#19 cap:ab,ti

#20 OR/#16-#18

#21 'death'/exp

#22 'survival'/exp

#23 'mortality'/exp

#24 death:ab,ti

#25 mortality:ab,ti

#26 surviv*:ab,ti

#27 OR/#21-#26

#28 'risk factor'/exp

#29 'risk factor*':ab,ti

#30 OR/#28-#29

#31 #15 AND #20 AND #27 AND #30

#1 pediatric*[Title/Abstract]

#2 child*[Title/Abstract]

#3 bab*[Title/Abstract]

#4 infan*[Title/Abstract])

#5 toddler*[Title/Abstract])

#6 preschool[Title/Abstract]

#7 pre-school[Title/Abstract]

#8 adolescen*[Title/Abstract]

#9 youth*[Title/Abstract]

#10 teenage*[Title/Abstract]

#11 "Child"[Mesh]

#12 "Pediatrics"[Mesh]

#13 "Infant"[Mesh]

#14 "Adolescent"[Mesh]

#15 OR/#1-#14

#16 pneumon*[Title/Abstract]

#17 bronchopneumon*[Title/Abstract]

#18 cap[Title/Abstract]

#19 "pneumonia"[Mesh]

#20 OR/#16-#19

#21 death[Title/Abstract]

#22 mortality[Title/Abstract])

#23 surviv*[Title/Abstract]

#24 "Death"[Mesh]

#25 "Survival"[Mesh]

#26 "Mortality"[Mesh]

#27 OR/#21-#26

#28 risk factor*[Title/Abstract]

#29 "Risk Factors"[Mesh]

#30 OR/#28-#29

#31 #15 AND #20 AND #27 AND #30

#1 主题：“儿童”

#2 主题：“婴儿”

#3 主题：“幼儿”

#4 主题：“学龄”

#5 主题：“青少年r”

#6 OR/#1-#5

#7 主题： “肺炎”

#8 主题： “支气管肺炎”

#9 OR/#7-#8

#10 主题： “死亡”

#11 主题： “生存”

#12 OR/#10-#11

#13 主题： “危险因素s”

#14 主题： “危险因子s”

#15 OR/#13-#14

#16 #6 AND #9 AND #12 AND #15

#1 主题：“儿童”

#2 主题：“婴儿”

#3 主题：“幼儿”

#4 主题：“学龄”

#5 主题：“青少年”

#6 OR/#1-#5

#7 主题： “肺炎”

#8 主题： “支气管肺炎”

#9 OR/#7-#8

#10 主题： “死亡”

#11 主题： “生存”

#12 OR/#10-#11

#13 主题： “危险因素”

#14 主题： “危险因子s”

#15 OR/#13-#14

#16 #6 AND #9 AND #12 AND #15