Through the theme analysis, 4 themes and 14 sub-themes were extracted: (1) Parenting style; (2) Family function; (3) Peer interaction; (4) Psycho-behavioral factors.
Theme 1: Parenting style
Sub-theme 1: Parents’ authoritarian
Parenting style (theme; figure) has a great influence on the growth of adolescents in China. Parent’s authoritarian (Sub-theme) refers to parents according to their own experience and will, force teenagers to live and study go their way, and have a set of requirements.
“My wife is very aggressive, like a ‘superwoman’. She always educates children based on some of her experiences and is very strict with children's study and life. In addition, she is very demanding on children and has own set of standards.” (Participant 5)
“She felt that her father and her grandparents were the same, that is, to compel them. Everything was imposed on her by their will.” (Participants 19)
When children have bad behavior that their parents think, such as fall behind in the study, poor living habits, etc., parents usually beat or scold to them.
“Her father would hit her. So she's still scared of his dad.”(Participant 7)
In addition, parent's authoritarian reduces the intimacy of adolescents and parents. They may have a feeling of hatred towards their parents. Some teenagers were even afraid to rebel against their parents and are less likely to talk to their parents about their own life events and troubles or difficulties and look for other ways or just keep the emotions in mind.
“The child and we were very close to each other, but slowly alienated. He is a few hateful parents because his mother is too strict with him.” (Participant 5)
“After having his own room, he locked the door every day, stayed alone. We also did not feel any emotions, such as angry or something. He just puts his emotions in his heart, does not say it.”(Participant 3)
Sub-theme 2: Father’s co-parenting
In China, mothers play a major role in educating and raising children, while fathers play an assisting role. Father’s co-parenting (sub-theme) is very common in the family. Nevertheless, most fathers’ education mode are not in line with mothers’.
“My husband and I are the opposite of character, he is very grumpy, and his education mode is different from mine. When conflicts with others” (Participant 13)
Some fathers work away from home to make money and rarely get along with children. They don’t know how to educate children and are impatient to children. Meanwhile, they are irascibility and don’t understand children.
“Her father has been working outside to earn money. He is so grumpy that he always scolds children and breaks things.” (Participant 1)
“She didn't get any father's love, and always felt that her father just made money.” (Participant 20)
Sub-theme 3: Grand-parenting
The number of left-behind children in China is huge, and grand-parenting (sub-theme) cannot be avoided among the population. There is a greater generation gap between grandparents and adolescents. Grandparents are much older, making it difficult for teenagers to express their true needs and ideas under the pressure from family ties.
“The meals cooked by grandparents are not good, and they never ask what they like to eat. And children are forced to eat.” (Participant 19)
“She doesn't like to eat food made by grandpa, because it is not delicious, and then grandpa will be unhappy and blame her. She was uncomfortable under this pressure.” (Participant 8)
Some grandparents interfere too much with teenagers. As a result, teenagers reduce their activities to prevent interference by their grandparents.
“Once they made a friend, but the friend's father and mother are divorced. Then, grandma went to her school and asked her not to play with that classmate.” (Participant 19)
A few parents and grandparents also have different ways of educating their children, which may cause the child not to know who he/she should listen to.
“My education mode is very different from that of her grandmother, which may create a dilemma for her.” (Participant 11)
Theme 2: Family function
Sub-theme 1: Family cohesion
Family cohesion (Sub-theme) is the core of family function, evaluates the intimacy between family members. Many participants pointed out that there is little in-depth communication among family members, especially with their children. This results from that they have nothing in common with their children or their parents are not good at expressing themselves.
“I am not so close to him. After he went to high school, we had no topic, and slowly we did not communicate with each other anymore.” (Participant 3)
“I really can't and don't know how to communicate with her. I really can't say what she wants, and I don't know how to say it.” (Participant 16)
Other participants mentioned that they are usually busy with work, and children spend a lot of time at school. They just have little time to talk to each other.
“We are busy with our own business, if I come back, I will urge her to read books and do her homework. We have very little communication, and I won't take the initiative to talk to her.” (Participant 4)
“Her father has been working outside, rarely coming back. He doesn't speak very much, rarely communicates with children, and don’t know what to say.” (Participant 18)
Further, parents do not take the initiative to communicate with their children, and neither do children. Therefore, in-depth communication between teenagers and their parents is seldom.
“When she wasn't in the hospital, she didn't want to talk to us at all. At home, no matter what she did, she has almost nothing to talk to us.” (Participant 10)
Sub-theme 2: Marital status
Most participants mentioned marital status not only seriously affects the family function but also affects the teenagers' sense of family belonging.
“She’s been in a bad mood since her dad told her he was going to divorce me. She cared about it and she probably still doesn't have a sense of security.” (Participant 6)
Some participants reported that teenagers had negative emotions from that time when they conflict or divorce with their spouse.
“My divorce with her mother definitely has an impact on her. However, I feel that regular quarrels have a greater impact on her. It was during that time that she had emotional problems.”(Participant 11)
Sub-theme 3: Sibling relationship
Most participants mentioned that after having a second child, the first child always think parents put more energy on their younger siblings and care less about them. Moreover, they even do not want to have siblings.
“She believes that, as her father, I pay more attention to her brother. Maybe when she quarrels with her brother, we might accuse her instead of her brother.” (Participant 20)
“In her mind, she feels that we care more about her brother, she often said.” (Participant 15)
“I don't know if she is getting not enough attention or other reasons. She doesn't want us to have a second child.” (Participant 4)
In addition, the sibling relationship is not good in adolescents. They often quarrel or even fight with their siblings.
“She has a very bad relationship with her little brother and will fight and grab things with him. Whenever her little brother wants to enter her room, she does not allow. She said that she was annoyed when she saw her little brother.” (Participant 15)
Because of “son preference”, a few girls felt abandoned by their parents when they knew that their mother was pregnant.
“They felt that Mom and Dad didn't want them after having a little brother! They were actually very sad from that time.” (Participant 19)
Sub-theme 4: Psychological neglect
Most parents believe that meeting children’s needs for materials and taking care of them in daily life show concern for children. However, they neglect some psychological needs.
“I can only arrange all things for her in daily life but nothing else.”(participant 16)
Furthermore, some parents’ attitude towards children is very perfunctory. They have little patience with their children. When the questions parents cannot solve, they will ask children to seek from the internet.
“I don't know the questions she asked, so I said you can check your own mobile phone! In addition, there is no similar hobby between us. I am not very patient to her and do not want to hear her. She asked some words, like what does this mean? I said that I do not know, and you use Baidu to search.” (Participant 4)
Theme 3: Peer interaction
Sub-theme 1: Teasing
Most participants heard from their children who teased by students like weight-teasing, appearance teasing, etc.
“After a boy said that she was fat, she had self-injury at that time.” (Participant 15)
“People laugh at her, saying that her dandruff is like snow. In addition, her favorite teacher also said that she did not pay attention to her personal image and dandruff in front of the class.” (Participant 4)
In addition, due to transferring to another school, teenagers were easily be laughed at. A transfer student usually deemed as an outsider, who will be attracted attention and maliciously speculated.
“After she transferred to another school, she was very lonely and had few friends, and classmates rejected her, saying that the previous school did not want her.” (Participant 20)
“In the new school, he said that he did not make good friends, and some classmates laughed at him. He was a little out of tune with the new environment.” (Participant 14)
Sub-theme 2: Peer harass
Most participants have conscious that peer harass is multifaceted and will combat the self-confidence and self-esteem of teenagers, causing negative emotions that are tired of learning and afraid of going to school.
“When she seems to be in elementary school, the male students often put frogs on her desk and scared her.” (Participant 9)
“When the exam was coming, two students deliberately blocked her at the door to prevent her from entering the classroom for an hour. And two girls and a boy threw the book she needed to review for an hour.” (Participant 4)
Furthermore, because teachers cannot stay with them all the time, peer victimization is often inevitable. Most participants didn't pay attention to their children's relationship with classmates at school because they thought peer harass is a normal phenomenon and is a small matter among classmates.
“She said that some classmates often steal her snacks. I think it's a small matter and I don't care.” (Participant 12)
Sub-theme 3: Peer pressure
Most participants mentioned peer stress is the main source of stress among adolescents. Some of them have greater peer pressure, including academic, interpersonal, and material stress. Academic stress is the most serious, resulting from competition with peers.
“In fact, she used to be good. This time, after she went to high school, because she put his energy into study, she still felt that he could not keep up with others in the studies. Then he felt that she was not as smart as he used to be. She had a lot of psychological pressure.” (Participant 2)
“She used to have a good grade and have a strong character. Other students went to school. She did not go to school because of psychological problems. She was very depressed and felt that there was no hope in life.” (Participant 12)
Sub-theme 4: Influenced by other teenagers engaged in NSSI
Some participants said that the best friend of their children is also engaged in NSSI and they affect each other.
“One of her best friends has severe depression. I feel that her emotional outburst may have something to do with her friend.” (Participant 8)
“Many of her thoughts will tell a girl who suffered from depression. I heard from her mother that the girl brought her a lot of negative emotions.” (Participant 17)
They often communicate about the ways of self-injury on the Internet or face-to-face or even make an appointment to commit suicide or self-injury together.
“The next morning, she told me that she and her friend went to the square and wanted to jump.” (Participant 1)
Theme 4: Psycho-behavioral factors
Sub-theme 1: Emotional regulation
Many participants referred that their children don't know how to manage their emotions. Whenever they are in a bad mood, they close themselves up, or just stay alone, instead of communicating with others or asking for help.
“When she is in a bad mood, she likes to stay alone in her room and don't tell us anything.” (Participant 6)
“He just kept it to himself and didn't say anything.” (Participant 14)
Some participants mentioned that their children suppress their emotions because they think they will affect others, considering the feelings of others too much.
“He thinks that if he tells his friends when he is in a bad mood, his friends will also be in a bad mood. He takes too much care for other people's feelings.” (Participant 5)
Sub-theme 2: Introverted personality
Most participants reported that their children were a little introverted and a few adolescents didn’t like to make friends.
“I think my child has a more introverted personality…” (Participant 2,8,10,11,13,14,15,16,17)
“They haven't loved to make friends since they were young. No matter how much I want them to make friends, they don't do it.” (Participant 19)
Furthermore, they often don't want to cause trouble to others and themselves. Hence, even if they are treated aggrieved or unfairly outside, they will be backlogged and will not conflict with others.
“She was bullied at school. I said I was going to find the classmate who bullied her. She refused. She said she was afraid of causing trouble in the future.” (Participant 2)
Sub-theme 3: Mobile phone addiction
Most participants regard mobile phone addiction is a serious phenomenon in adolescents. With a mobile phone, teenagers are reluctant to get in touch with the outside and get more information from their phone.
“He does not want to go to school, and very silent. He just plays with his phone every day. Later, he began to sleep during the day and play at night”. (Participant 14)
For another thing, some negative information can also be obtained from the mobile phones, such as the way of self-injury.
“He likes to sit alone in the room and play with his mobile phone. He also searched online for suicide methods, and I didn’t know until came here.” (Participant 3)